PinoyBIX Engineering Problem Solving and Reference

This is the Section 4 Module 6 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 6

BIOMEDICAL ELECTRONICS

1. Imaging technique used to measure the magnetic field produced by the electrical activity of the brain

MAGNETOENCEPHALOGRAPH

2. Curie has how many transformations (decay) or disintegrations per second

37, 000,000,000

3. Dose of radiation that can cause symptoms of radiation (e.g. tiredness and nausea) if takes within 24 hours has what value?

1000 mSv

4. One becquerel =_____dps

ONE

5. Radiation dose of a person when he/she is X-rayed

0.1 MSv

6. One curie is equal to ____ Bq

3.77 x 10¹⁰

7. Biological dose of radiation in a HUMAN tissue that had been absorbed.

ROENTGEN EQUIVALENT MAN (REM)

8. A unit used to measure a quantity called absorbed dose that relates to the amount of energy actually absorbed in some material and is used for any type of radiation and any material.

RAD (RADIATION ABSORBED DOSE)

9. SI unit used of the absorbed dose in HUMAN tissue to the effective biological damage of the radiation.

SIEVERT

10. SI unit of absorbed dose (absorbed in some MATERIAL)

GRAY

11. A person can die receiving this amount of mSV dose at the same time

6000 mSv

12. Maximum allowable dose for a radiation worker in 5 years

100 mSv

13. It is a measure of the ionizations of the molecules in a mass of air. The main advantage of this unit; it is easy to measure directly, but it is limited because it is only for deposition in air, and only for gamma and x rays.

ROENTGEN

14. The dose of radiation a patient is exposed when having a teeth/tooth check up

0.01 mSv

15. 1 roentgen = Coulumb/kg

0.000258

16. Physiological biometry uses

IRIS AND RETINA

FACIAL RECOGNITION

FINGER AND HAND PRINTS

HALL OF FAME

1. Discovered the magnetic effect

HANS CHRISTIAN OERSTED

2. Invented IC

JACK KILBY

TELL ME WHEN

1. The first systematic work in liquid crystals was first reported on

1888

ELECTRONIC EFFECTS

1. The voltage produced in the thermocouple is directly proportional to the temperature in the junction. This is also known as

SEEBECK EFFECT

2. In thermocouple, when one junction is heated (absorbs energy) and the other junction is cooled (releases energy)..

PELTIER EFFECT

3. The liberation or absorption of heat when an electronic current flows from a warmer to a cooler part of conductor.

THOMSON EFFECT

4. Nucleus are stimulated to emit a defined beam of gamma ray

MOSSBAUER EFFECT

5. Condition where in a nucleus can be stimulated to emit upon sharply defined beams of gamma rays.

MOSSBAUER EFFECT

6. The sudden, large increase in current that occurs when the particular value of the reverse voltage is reached, and in which is due to ionization by the high intensity electric field in the depletion region in reversed biased PN junction.

ZENER EFFECT

7. Magnetization of a helically wound, ferromagnetic wire fluctuates, the tendency for a potential difference to occur

MATEUCCI EFFECT

LAWS AND THEORIES

1. Law which states that the force of repulsion or attraction between charges is directly proportional to their strength

COULOMB’S FIRST LAW

MAXWELL’s LAW

UNCLASSIFIED

1. Each satellite in the Iridium Satellite system has how many spot beams

48

2. Change of state from solid to gas

SUBLIMATION

3. Visual inspection of a completed repair is conducted to evaluate which of the following aspects of the repair?

WORKMANSHIP QUALITY

4. Which of the following splices is NOT butted?

KNOTTED TAP JOINT

5. Orbital that has one electron that is outside the orbital that is closest to and nearer to L orbital.

M ORBITAL

6. Inclusion of loop/subroute to larger loop/subroute

NESTING

7. The approved way of removing coating ?

MECHANICAL, THERMAL AND CHEMICAL

8. Which is NOT a solid?

SUPERCRITICAL

9. Changes color in different temperature

CHOLESTERIC

10. A flow of current through an ionized path by electrical arc

HOLDOVER

11. The manufacture of parts in discrete runs or lots, generally interspersed with other production procedures.

BATCH MANUFACTURING

12. What is INVERSE SQUARE LAW

In physics, an inverse-square law is any physical law stating that a specified physical quantity or intensity is inversely proportional to the square of the distance from the source of that physical quantity.

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 4 Module 5 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 5

WELDING

1. Most efficient soldering temperature.

500˚F

2. What should be done to the removable tip of a solder gun when it is pitted

FILE THE TIP TO SMOOTH AND RETIN

3. Solder fracture occurs when the

SOLDER IS MOVED WHILE BEING COOLED

4. In removing solder using solder wick, wick is placed where?

BETWEEN THE JOINTS AND IRON

5. An electric arc welding that uses arc between the..

FCAW

6. High frequency resistance welding (HFRW) uses high frequency up to ___.

450 kHz

7. In SMAW, the use of less spatter but medium penetration

DC STRAIGHT OR DCSP

8….1/32 inch long….. to

TO PREVENT BURNING OF INSULATION

9. The bend of full-clinched iron and half-clinched iron

90 AND 45 DEGREES

10. To remove a solder with a twick where should the twick be in relation to the joint and iron

BETWEEN JOINT AND IRON

11. One of the most commonly used type of welding is manual metal arc welding (MMA) or ???. It is also known as

SHIELDED METAL ARC WELDING (SMAW)

12. In welding, . . . to protect the weld from contamination

MIG/GMAW

13. In automatic welding, release is followed by _____ interval.

STANDBY

14. Supply in SMAW deep weld penetration?

DC REVERCED (DC+ OR DCRP)

15. During arc welding process, current is in the range of

50 A – 450 A

16. In AWS (American welding S******), for ES60xx, 60 means a tensile strength of _______

60 000 psi

17. A part of the welding process interval when there is a flow f current

HEAT SUB-INTERVAL

18. In Ultrasonic welding, frequency is in the range of_______

10 KHZ – 75K HZ

19. High Frequency Resistance Welding (HFRW), uses high frequency current up to

450 Khz

20. After weld interval, ____ interval in which electrodes are placed in metal surface

HOLD

21. Steering the leads during desoldering prevents _____

SWEAT JOINT

22. When a TO or DIP is to be replaced, the termination applied is

THROUGH-THE BOARD

23. Type of PCB that is most complex to build and most difficult to repair.

LAYER BUILD-UP

ROBOTICS

1. What is a robot?

A machine capable of carrying out a complex series of actions automatically, especially one programmable by a computer. A robot is a mechanical or virtual artificial agent, usually an electro-mechanical machine that is guided by a computer program or electronic circuitry. Useful tool for manufacturing.

2. The science and technology concerning robots, its design, . . . and applications.

ROBOTICS

3. Introduction to robotics, industry

LABOR SAVINGS, IMPROVED QUALITY PRODUCTS, REDUCE MATERIAL COSTS

4. Large size man ..aphend robot

SCARA… IN Z AXIS..

5. Moving in one direction rate motor has how many precession

2

6. A solid mass has how many degrees of freedom

6

7. DEA pragma robots

3P, 2R, 3P2R

8. Low technology robots have

2 TO 4 AXES

9. The ability of a robot to position its end effectors at programmed location in space

ACCURACY

10. In robotics, __ has a limit but no trajectory

FIXEDSTOP ALSO KNOWN AS NONSERVO ROBOT, OR OPEN ROBOT

11. Keyword: “two fingers” . . . The grasping hand of a robot, which manipulates objects and tools to fulfill a given task

GRIPPER

12. Robot hand; robot arm

END EFFECTOR; MANIPULATOR

13. Muscle of robot

ACTUATOR

14. An actuator which resembles a biological muscle.

AIR MUSCLE

15. A robot with rotary joint just like a human arm

ANTHROPOMORPHIC ROBOT

16. A robot used to assist doctor/nurses

MEDICAL ROBOT

17. Total environment of robot, a robot must performs its task

WORK CELL

18. In, robotics measuring quantities(resistance, voltage, rotation) also use in pneumatic, hydraulic and electric actuator

ANALOG SYSTEM

19. Harmonic drive in robot transmission system has _____

HIGH RELIABILITY

20. In robot, a program that uses numeric symbol

NUMERICAL METHOD

21. In robot, an actuator that rotates few degrees when a signal is send by the controller

STEPPER MOTOR

22. In robotics, opposition … electro values, as done in path planning

INVERSE KINEMATICS

23. Calculation of the forces applied by the actuator to know the proper end-effector acceleration

INVERSE DYNAMICS

24. Used to calculate the end effectors……

DIRECT KINEMATICS

25. Developing robot programs partially or completely without requiring the use of the robot itself.

OFF-LINE PROGRAMMING

26. Harmonic drive in robot.

WAVE GENERATOR, FLEXSPLINE, CIRCULAR SPLINE

27. What is the most popular output type of driver used in robot transmission system?

TOTEM POLE DRIVER

28. Area where human is trapped in the work envelope without having an avenue of escape on it

PINCHPOINT

29. Desire characteristic of a robot

GOOD LOAD CAPACITY, . . . . . .

30. Use to be able to walk the robot . . . .

DYNAMIC BALANCE

31. In low technology robot; which drive is easiest to control?

hydraulic

pneumatic

ELECTRIC

32. Process of transferring mechanical.. from one place to another. Has a nominal constant gear ratio.

CHAIN DRIVE

33. In robotics, it refers to the promising and experimental form of actuator.

ELECTRIC NANOTUBE

34. What is/are the basic parts of a robot?

i. Commulator

ii. End Effector

iii. Manipulator

iv. Power Source

i-iv

35. In robot it is use to grasp, hold, and transport also called robot “hand”.

GRIPPER

36. In robot, part of joint-arm connected to the shoulder

UPPER ARM

37. Chain is composed of, _____ (its bone), _____ (its muscle) and ____ for more degrees of freedom

LINKS, ACTUATOR, JOINTS

38. Used as gripper to grasp and handle tools

END-EFFECTOR

39. Robot which motions are controlled by driving the axis or degree of freedom against mechanical limit stop.

BANG BANG ROBOT

40. Type of robot with two moves or three degrees of freedom to transfer item from source to destination by point-to-point contact

BANG-BANG ROBOT

41. A robot that has only two moves or three degrees of freedom that picks a material from source to destination or from point-to-point.

PICK AND PLACE ROBOT OR BANGBANG ROBOT

42. Robot that is capable to stop at or move in unlimited number of points in executing a programmed trajectory.

SERVOCONTROLLED ROBOT

43. What do call a robot where its base is permanently or semi-permanently attached to the floor?

FLOOR MOUNTED ROBOT or PEDESTRAL ROBOT

44. In robotics, the loading/ unloading of cartoons, container, or pallet

PALLETING/DEPALLETING

45. In robot, the rotational and translational axes which measures robot motion.

DEGREE OF FREEDOM

46. It is a sensor used in magnetoencephalography.

SUPERCONDUCTING QUANTUM INTERFERENCE

47. In robotics, DC motors and stepper motors are preferred over AC motors because ____

THEY CAN WITHSTAND LARGE OVERLOADS

48. The detection by a robot though contact of touch, force, pattern slip and movement. It allows for the determination of local shape, orientation and feedback forces of a grasped workspace.-

TACTILE SENSING

49. Desired output parameter by a sensor

SET POINT

50. Will be turned on when motion limit occurs

LIMIT SWITCH

51. Mechatronics is the combination of mechanics and electronics. Mechatronics is coined in what country?

JAPAN

52. Robots with little if any computer power. Their only intelligent functions consist of learning a sequence of manipulative actions, choreographed by a human operator using a teach box

FIRST GENERATION OF ROBOT SYSTEM

53. A robot with a computer processes added to the robotic controller. This addition makes it possible to perform, in real time, the calculations required to control the motions of each degree of freedom in a cooperative manner to effect smooth motions of the

SECOND GENERATION ROBOT

54. Consists of multiple microprocessors

3RD GENERATION ROBOT SYSTEM

EXPERT SYSTEM

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 4 Module 4 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 4

LOGIC / COMPUTER

1. The size of an empty folder is approximately ____________.

1KB

2. 8086 is a ___ bit microprocessor.

16 bit

3. The average latency of magnetic tape memory is _____ seconds

60 seconds

4. A program that lies in between the application software and computer hardware.

OPERATING PROGRAM

5. (Some computer descriptions..) Computer handles: I-Input devices, II-Processor, III-Output devices, IV-Storage

I, II, III AND IV

6. Which of the the ff. is not a fundamental features of computer

SPEED, HIGH COST, RELIABILITY, STORAGE CAPACITY

7. Signal that the computer is awaiting a command from the user

PROMPT

8. Pulse counter accelerometer is only used at what kind of computers?

DIGITAL COMPUTERS

9. Supercomputers are measured in terms of ____

FLOPS (FLOATING POINT OPERATIONS PER SECOND)

10. Main program of operating system

KERNEL

11. In computer, file size is measured in _

BYTES

12. Time between the user’s request and the computer’s reply

RESPONSE TIME

13. Most common application for accessing the internet

BROWSER

14. Desktop and personal computers are also known as

MICROCOMPUTERS

15. Computer user which is not a personal user is also called

END USER

16. In computer system, central processing unit is part of the?

HARDWARE

17. Which is not a local storage device?

PCI STATUS REGISTER

18. Confining each program at certain defined limits in memory is called _____________.

MEMORY PROTECTION

19. Fundamental characteristics of computer

I. SPEED

II. RELIABILITY

III. STORAGE CAPABILITY

I, II, III

20. The use of byte to store two numerals

PACKED BCD

21. Term used to describe the first remainder when converting decimal numbers to other bases

LSD

22. Type of IC that is needed to be physically removed to change the data…

EPROM

23. What is the output if the input of a RS flipflop is R = low, S = high?

LOW

24. In positive edge triggering, the change of state occurs when

THE PULSE LEVEL IS GOING FROM LOW TO HIGH

25. Major cause of frequency error in counters

COUNT-HOLD CIRCUIT

26. PDA means

PERSONAL DIGITAL ASSISTANT

27. Free cable technology…that people can surf… e-mail..

WI-FI

28. An ultra-speed and long range connection intended for houses and businesses that are not reachable by cables.

WiMax

29. MAGNETIC BUBBLE DISK, RAM, MAGNETIC DISK, FLOPPY DISK

30. The input of an OR gate is inverted by a not gate the resulting gate is a

NAND

31. If the input of OR gates are connected with NOT gates, the output will be the same as _____

NAND GATE

32. In 74LSXX, LS means ____

LOW POWER SCHOTTKY

33. All logic gates is made of ____

TRANSISTOR

34. Advantage of JK to RS FlipFlop.

PREDICTABLE OUTPUT

INSTRUMENTATION

(Test / Measurements, AC/DC Bridges)

1. Process of determining the magnitude of a .… standards

MEASUREMENT

2. A technique that detects the presence or absence of a feature. It has also simple mechanical probe and vision system.

AUTOMATED INSPECTION

3. Equilibria which is present between two different states of matter can be represented by what graphical diagram?

PHASE DIAGRAM

4. In damage electronic components, what is the minimum electrostatic?

37

5. Common type of meter movement.

D’ ARSONOVAL MOVEMENT

6. Combination of Voltmeter, Milliameter, and Ohmmeter

VOM

7. Instrumentation amplifiers are used in

HIGH-NOISE ENVIRONMENT

8. Most accurate device for measuring dc voltages

DIFFERENTIAL VOLTMETER

9. How do you increase the range of voltmeter?

INSERT HIGH RESISTANCE IN SERIES

10. Device used to measure power

WATTMETER

11. A special type of magnetomotive use to measure the earth’s ……..

KEW MAGNETOMOTIVE

12. To remove the insulation in a wire, what tool is use?

WIRE STRIPPER

13. It is sometimes called as Maxwell-Wien bridge used to measure inductance using known capacitance

MAXWELL BRIDGE

14. Sometimes called as Maxwell-Wien bridge that is used to measure unknown inductance with capacitance standard

MAXWELL BRIDGE

15. A contact used to remove lead resistance on the accuracy of measurement

KELVIN CONTACT

16. Test to locate the ground fault in a single cable

BLAVIER’S TEST

17. Horizontal displacement in oscilloscope CRT is measured in___________.

TIME PER VOLT DIVISION

18. In time-domain oscilloscope, the wave to be analyzed is applied to _______.

VERTICAL DEFLECTION PLATES OR COILS

19. What does OMR stands for?

OPTICAL MARK RECOGNITION

20. To increase the range of a voltmeter one must insert a high resistance in ______

SERIES

21. Torque produced with the effects of voltage or current in an instrument

DEFLECTING TORQUE

22. Test equipment that continuously monitors performance and automatically isolates faults to removable assemblies is what category equipment?

ON-LINE

23. When a wire is insulated with glass braid or asbestos and requires stripping, which of the following tools should not be used?

HOT-BLADE STRIPPER

24. Because its resistance changes very little temperature changes, what conductor is best suited for use in measuring instruments?

MANGANIN

25. Instrument used to monitor/measure animals’ activities (i.e., PH…)

RADIO PILL

INDUSTRIAL ELECTRONICS

(Thyristors, SCR, optoisolator, optocoupler…)

1. Outermost spectrum of the broadest LED

100 nm

2. A unit that is used to derive the quantity called absorbed dose.

RAD

3. Application of biometry are the following except

a. INVESTIGATION

b. authentication

c. identification

d. verification

4. Biometry is used in:

AUTHENTICATION; IDENTIFICATION; VERIFICATION

5. A PN junction of a point (a) to ……. Point (b).. of an SCR.

EMITTER, EMITTER

6. The minimum current needed by SCR to maintain its conducting state

HOLDING CURRENT

7. TRIAC voltage capacity in volts?

1000 V

8. The typical turn-off voltage of a MOS controlled thyristor or MCT

15 V

9. In motor action, the firing angle of an SCR is used. What % of the power is transferred?

95 %

10. Source of energy of IRED

ELECTRON CHANGE OF POTENTIAL

11. Intermediate junction of the wires in thermocouples.

COLD-JUNCTION EFFFECT

12. Most commonly used metal in metallization process

ALUMINUM

13. The process of making a material “passive” in relation to another material and use the material together

PASSIVATION

14. Printed circuit board is mainly damaged by______________.

REMOVAL OF THE COMPONENTS

SYNCHROS, SERVOS, GYROS

1. If the synchro has loose bearing_____________.

REPLACE THE SYNCHRO

2. Advantage of multispeed synchro over single speed synchro.

GREATER ACCURACY

3. The arrow on the synchro schematic symbol indicates the

ANGULAR POSITION OF THE ROTOR

4. Minimum number of synchros required to make a simple synchro system

2

5. Minimum number of syncro for a syncro system

2

6. Indicating device installed in the stator circuit of the torque in synchro . . .

OVERLOAD INDICATOR

7. In synchro alignment the purpose of coarse setting

TO MAINTAIN 0 DEGREES RATHER THAN 180 DEGREES

8. Number of direction a rate gyro is free to precess

TWO

9. For a gyro to be universally mounted, it must have ___ gimbals.

TWO (2)

10. In gyro to be universally mounted, must have _____ gimbals.

2

11. What gyro characteristic provides the bases of the operation at a rate gyro?

PRECESSION

12. In order to have a smooth and efficient servo system, the two factors need to be balance

AMPLIFICATION AND DAMPING

13. Synchro capacitance is use to _____ in synchro system

IMPROVE ACCURACY

14. A device that can be used as a position sensor in a servo system

POTENTIOMETER

15. Used as position sensor of servo system

POTENTIOMETER

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 4 Module 3 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 3

SOLID STATE DEVICES and CIRCUITS (BJT/FET/MOSFET)

1. In JFET, the transconductance is the ratio of ______

CHANGE IN DRAIN CURRENT OVER THE CHANGE IN THE GATE VOLTAGE

2. MOSFET vs JFET

MOSFETS CAN HANDLE A WIDE RANGE OF BIAS VOLTAGE

3. Field-effect transistor combining the depletion mode properties and enhancement mode properties

MESFET

4. Signal diode can operate satisfactorily from front-to-back ratio or back-to-front ratio.

300 to 1

5. Ratio of small change of zener voltage with the small change of zener current

ZENER DYNAMIC IMPEDANCE

6. Cutting and peeling is an easy way to remove what kind of coating?

SILICONE

7. In n-channel JFET, pinch-off occurs when the gate bias is

VERY NEGATIVE

8. If gate source voltage is zero, the current that flows in the JFET is

DRAIN SOURCE SATURATION CURRENT

9. Bipolar transistor and JFET in multivibrator are in

COMMON-EMITTER AND COMMON-SOURCE CONNECTION

10. Used in most voltage regulators as their control element

BJT

11. The input saturates the transistor. This will __

REDUCE EFFICIENCY

12. The hfe of a bipolar transistor corresponds to

BETA

13. Current gain in common collector is called______.

GAMMA

14. _____ configuration is used as a stable RF power amplifier

COMMON BASE

15. To obtain a high input impedance, ____ configuration is used

COMMON COLLECTOR

16. When looking for good voltage gain and high input resistance _____ must be used

COMMON-SOURCE AMPLIFIER

17. Transient suppression avoid the risk of _____

DIODE FAILURE

18. Checking of transistor become cumbersome when more than one is defective

SUBSTITUTION METHOD

19. Emitter junction produced on the base layer of the mesa transistor

VACUUM EVAPORATION OR DIFFUSION

20. Solid without crystalline formation

AMORPHOUS

ELECTRONIC (AUDIO/RF) CIRCUIT/ANALYSIS/DESIGN

(Oscillators & Multivibrators, Feedbacks, Amplifiers, Attenuators, Filters)

1. Two split capacitance parallel with an inductance

COLPITTS

2. Used in Op amp differential amplifier.

RESISTOR

3. Purpose of a varactor

TUNING A GUNN-DIODE OSCILLATOR

4. In an op-amplifier, the peak value decreases when _____

POWER BANDWIDTH INCREASES

5. A voltage follower amplifier has a voltage gain of_____.

UNITY

6. Voltage amplifier is also called as

PRE-AMPLIFIER

7. Voltage gain is practically expressed in

dB UNITS

8. The voltage gain of an amplifier is expressed in

dB units

9. Current supplied in the input of an amplifier

INPUT BIAS CURRENT

10. What is the closest value of MPP of an op-amp if its two supply voltages are ± 18V?

36 V

11. Typical external frequency-compensating capacitance on op-amps

3 – 30 PF

12. Rate of output voltage of op-amp with respect to input signal

SLEW RATE

13. In amplifiers, it is made with compensating circuit,… the reason for high open loop gain…. (mahabayungtanong)

ROLL OFF

14. A 74IC op-amp unity loop gain frequency is

1 MHZ

15. An LF 157A is a/an _____ op amp

BIFET

16. In inverter amplifier, the closed loop voltage is equal to

FEEDBACK RESISTANCE DIVIDED BY INPUT RESISTANCE

17. Preventing the compensating capacitor in OP AMP

OSCILLATION

18. Bandpass, bandstop, high pass or low pass filter characterized by flat pass and high attenuation..

BUTTERWORTH FILTER

19. Frequency of the crystal depends on the _______

THICKNESS OF THE CRYSTAL

20. Rejects the band and allows the upper and lower frequency to pass. Also known as band suppression and band rejection filter.

BANDSTOP FILTER

21. A filter that allows a narrow band of frequency to pass through the circuit and rejects or attenuates the frequencies that is below or above the frequency range.

BANDPASS FILTER

22. The main disadvantage of single balance mixer is that ____________.

INPUT IS NOT COMPLETELY ISOLATED

MICROELECTRONICS

1. A technology that uses an extremely small elements…

MICROELECTRONICS

2. Electronic system which consists extremely small elements

MICROELECTRONICS

3. An assembly of microcircuit or combination of microcircuit and discrete components

MICROCIRCUIT MODULE

4. Name and letter fabricated in the body of the IC provide what information.

USE

5. Letters and number stamped on body of an IC serve to provide which of the following types of information?

USE

6. A compound of Gallium and Arsenide that is used in manufacturing microwave frequency integrated circuit, monolithic microwave frequency integrated circuit, and others…. :]

GALLIUM ARSENIDE

7. Conformal coating is said to be thin if it is less than what thickness?

0.025 inch

8. The most popular op-amp packages are the metal can,8-pin DIP and the SMT. Which of these corresponds to TO-99?

METAL CAN

9. Plug-in DIPs are susceptible to loosening because of which of the following causes?

VIBRATION

10. Layer of aligned atoms used as coating in IC production.

EPITAXIAL LAYER

11. When there is no input signal, IC is minimum

WHEN E-B IS REVERSE BIASED

12. Maximum number of IC in large scale integration

2000

13. In IC fabrication, gold and aluminum are used to

TO CONNECT PACKET LEADS

14. In IC, lead is protected from contamination during fabrication process by which of the following material

OXIDE

15. Approximate typical diameter and thickness of silicon wafer

2” ; 0.01”- 0.02”

16. A device that allows the depositing of material in selected areas of a semiconductor substrate, but not in others is known as a

WAFER MASK

17. The most complex to produce and difficult to repair printed circuit boards are those made using which of the following methods

LAYER BUILD UP METHOD

18. Advantage of IC over discrete components

HIGHER ATTAINABLE SWITCHING SPEED

19. Assembly of microelectronics or combination of microelectronics and discrete component is referred as _______

MICROCIRCUIT MODULE

20. Recommended way of removing imbedded TOs

PULL OUT GENTLY

21. Deposition of a highly radiated material in wafer

VACUUM EVAPORATION

22. A single chip with dual 555 timer built in.

556

23. Plastic insulation is commonly used in what voltage level?

MEDIUM TO LOW

24. . . ___ Total heat if electrodes.

TWO THIRDS

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 4 Module 2 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 2

AC/DC CIRCUITS

1. A complex circuit simplified to an open circuit voltage and open circuit resistor

THEVENIN'S THEOREM

2. What theorem is used in solving electrical circuit swith several voltage sources?

SUPERPOSITION

3. Refer to current pulses that flow in the same direction

PULSATING DIRECT CURRENT

4. Relays are used to.

DECREASE THE CURRENT IN THE CIRCUIT

5. Damage to the electric component occurs at what minimum electrostatic potential.

35 VOLTS

6. Type of converter used to convert DC voltage to AC voltage

INVERTER

7. A process of converting an alternating current to a pulsating dc.

RECTIFICATION

8. In circuit, it is use to convert AC voltage to DC voltage

RECTIFIER

9. Vrms in an ac…

HOLDING VOLTAGE

10. A value at any instant time

INSTANTANEOUS VALUE

11. Voltage/current along at any instant of time

INSTANTANEOUS

12. Frequency is inversely proportional to . . . slope

SINE WAVE

13. What is the amplitude of two waves with equal amplitude and frequency but opposite in phase

ZERO ( THE SIGNAL WILL CANCEL EACH OTHER)

14. Represents a cycle of degree of phase

1/360

15. The angular frequency of a 60-Hz AC source

377 RAD/SEC

16. Two same frequencies 1/10 cycle apart has a phase difference of

36 DEGREES

17. Two AC signals with the same frequency but differs in phase by 1/10 of a cycle. What is the difference of two signals?

36 degrees

18. The length of time between a point in one cycle and the same point in the next cycle of an AC wave is the ___

PERIOD

19. When a capacitor is placed in an AC supply, the current ____ voltage by 90 degrees

LEADS

20. The absolute value of the impedance in a circuit increases _____

THE FLOW OF AC DECREASES

21. Relay that conducts only when current is supplied.

NORMALLY OPEN

22. When there is a reactance in the load where the transformer is connected

PERFECT IMPEDANCE MATCH CANNOT BE OBTAINED

POWER SUPPLY / GENERATORS and MOTORS

1. Efficiency of silicon solar cells _____

22%

2. Efficiency of a full wave rectifier

81.2%

3. Efficiency of a half wave rectifier

40.6%

4. In full-wave rectifier, the ripple is ________ than that of a half-wave rectifier.

TWICE

5. Combination of cells connected in series

BATTERY

6. A battery consists of_____________.

NUMBER OF CELLS

7. A lantern battery is most like to be found in __

A TWO WAY RADIO

8. A nickel-iron cell has a nominal voltage of 1.2V. It is also known as ___ cell.

EDISON

9. A modified version of the UPS which is used as back-up power supply

STAND-BY POWER SUPPLY

10. Where would you most likely find a lead-acid battery?

IN AN UNINTERRUPTABLE POWER SUPPLY

11. As a rule of thumb, Power rectifier ... back-to-front or front-to-back ratio is ____

10-to-1

12. As a rule of thumb, Signal diode ... back-to-front or front-to-back ratio is _____

300-to-1

13. A modified UPS wherein the power line itself serves as a back-up for the system

STANDBY POWER SUPPLY

14. In a Carbon zinc battery, zinc serves as

NEGATIVE CATHODE

15. What is the advantage of Alkaline cell over zinc-carbon cell

ALKALINE CELL WORKS WITH LOW TEMPERATURE

16. An advantage of alkaline cell over zinc-carbon cells

THE ALKALINE CELL CAN DELIVER USEFUL CURRENT AT LOWER TEMPERATURES

17. (mahabang intro…..tapos,)If you need low volume, low mass, and do not need regular maintenance, what type of battery should you use?

LITHIUM BATTERY

18. Typical output of silicon photovoltaic cell

0.6 VOLTS

19. Maximum theoretical efficiency of solar cell

22%

20. The electrical power that a solar panel can provide either in direct sunlight depends on all of the following factors except

AC VOLTAGE APPLIED DIRECT TO PANEL

21. A variable positive regulator.

317 (usually LM 317)

22. A fixed positive regulator

74XX

23. The most efficient regulator, used for high voltage and high current application

SWITCHING REGULATOR

24. Regulator that dissipates less power and less heat

SWITCHING REGULATOR

25. Linear regulator in which the load connected to the unregulated source must be kept constant

SHUNT REGULATOR

26. A regulator that dissipates less heat and less power

SWITCHING REGULATOR

27…frequency varies…

VOLTAGE CONTROLLED RECTIFIER

28. In a rectifier, to have a desired dc voltage output, ________ should be installed.

FILTER CAPACITOR

29. A current surge takes place when a power supply is first turned on because, ___

FILTER CAPACITOR MUST BE INITIALLY CHARGED

30. The part of a power supply immediately preceding the regulator is

FILTER

31. It is not a main component of an AC power supply.

RECTIFIER

32. A plate-type capacitor with two stator sections and a single rotor section common on both stators

BUTTERFLY CAPACITOR

33. If there is reactance in the load to which a transformer is connected, then _____

A PERFECT IMPEDANCE MATCH CANNOT BE OBTAINED

34. When reactance exists in the output of a ??? transformer,

THERE WILL ALWAYS BE AN IMPEDANCE MISMATCH

35. Maximum efficiency of half-wave rectifier

40.6 %

36. One revolution is equal to 200 steps. What is the angle movement?

1.8

37. Which is easily filtered by a power supply?

HIGH FREQUENCY PULSATING DC

38. Which motor is the best choice for handling heavy loads at short duration

COMMULATIVELY COMPOUNDED

39. In shunt wound with constant speed, as the current increases the _____

TERMINAL VOLTAGE INCREASES

40. The spin of a motor is 100% until the motor reach

LOW VALUE

41. Maintains the current in varying load better than series

SHUNT

42. Two primary parts of a rotating generator

PERMANENT OR TEMPORARY MAGNETS AND ARMATURE WINDINGS

43. Alternative to DC Motor as actuator.

PIEZO MOTOR OR ULTRASONIC MOTOR

44. Compared to straight cut spur gear, helical gear has_____________.

LESS BACKLASH

45. The current in secondary winding is greater than primary winding in step-up transformer.  This statement is _______.

FALSE

46. A transducer which converts linear motion of the object mechanically connected to it to electrical signal

LINEAR VARIABLE DIFFERENTIAL TRANSFORMER (LVDT)

47. A shell method in transformer winding

PULSE MAXIMUM COUPLING

48. The electronic transfer of energy from one stage to another is called_______.

COUPLING

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 4 Module 1 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 4 Module 1

ELECTRICITY / MAGNETISM / SEMICONDUCTOR FUNDAMENTALS

1. Current is directly proportional to voltage and inversely proportional to resistance.

OHM’s LAW

2. A law that states that the algebraic sum of the current entering and leaving the node or junction is equal to zero.

KIRCHOFF’S CURRENT LAW

3. One coulomb is how many electrons?

6.25 X 10¹⁸

4. One coulomb is equivalent to _____ electrons.

6.25 X 10¹⁸

5. Energy gap of semiconductor

1eV

6. Permeability of a material when its has a relative permeability of 10^-6

4π x 10^-1 H/m

7. Electrostatic charges can develop up to

35 000 VOLTS

8. Electron is pack in a given volume

ELECTRON DENSITY

9. What definition best describes an insulator?

A MATERIAL THAT HAS HIGH RESISTANCE

10. Which of the following is not a purpose of resistor?

Current limiting

Biasing

Voltage dividing

NONE OF THESE

11. If you are preparing to single lace conductors, what total length must the lacing be in relationship to the longest conductor?

TWO AND ONEHALF OF THE LENGTH

12. A material which allows the lowest forward voltage drop for a diode

GERMANIUM

13. Resistance in a semiconductor is known as___________.

BULK RESISTANCE

14. Typical range of resistivity of semiconductor

10 x 10⁴

15. In resistor, 4K7 has what value

4.7 kΩ

16. Resistor value: red, red, red, gold

2.2 kΩ  ± 5%

17. Strain gauge resistance

200

18. In resistor circuit, a connection with greater power dissipation per resistor

BOTH PARALLEL AND SERIES

19. Carbon composition resistor

ESSENTIALLY HAS NO INDUCTANCE AND CAPACITANCE

20. An insulator is best described as

A MATERIAL THAT HAS A VERY HIGH RESISTANCE

21. A logical place for a wirewound resistor is in ____.

A HIGH-POWER DC CIRCUIT

22. A network of resistors, diodes and capacitors that shifts the DC voltage level without changing its waveform.

CLAMPER

23. Two conductors with insulator in between

CONDENSER (OLD NAME); CAPACITOR (NEW NAME)

24. Capacitor stores energy in

ELECTRIC FIELD

25. When a capacitor is connected to an AC source, the current ___ the voltage by 90 degrees

LEADS

26. Energy stored in an electrostatic or magnetic field

POTENTIAL

27. A ferromagnetic core placed in an inductor to _____

INCREASE INDUCTANCE

28. The advantage of toroid core over solenoid core is it

CONCENTRATES MAGNETIC FLUX

29. An advantage of toroid core over a solenoid core is the fact that ______

THE TOROID CONFINES THE MAGNETIC FLUX

30. The unit for overall magnetic field quantity

MAXWELL

31. Another name for dielectric constant

RELATIVE PERMITTIVITY

32. The geomagnetic line of flux are

HORIZONTAL AT THE GEOMAGNETIC EQUATOR

33. Attractive forces exist when two parallel conductors have currents that are

OPPOSITE IN DIRECTION

34. When inductance is small,

ENERGY IS STORED AND RELEASED QUICKLY

35. A good form of inductor at FM

AIR CORE

36. Ferromagnetic coils are not used in RF because air core is ____

A BETTER INDUCTOR AT FM

37. Paper capacitor has less service life than other capacitor. This is a _____ statement.

FALSE

38. A paper capacitor is generally has shorter life compared to other type of capacitor

FALSE

39. Typical value of paper capacitor

0.01 pF

40. In a Variable air type capacitor, capacitance is maximum when ______

MOVABLE PLATES ARE CLOSE

41. The SI unit for exposure in x-ray, gamma, and in air.

COULOMB PER KILOGRAM ( C/KG )

42. The unit of a current.

AMPERE

43. When a charge of one Coulomb passes at one point in one second, the electrical charge is ___

1 AMP

44. Voltage drop is____

DIFFERENCE IN POTENTIAL BETWEEN TWO POINTS

45. Examples of trivalent impurities

BORON, GALLIUM, INDIUM

46. Acceptor impurities

TRIVALENT IMPURITIES

47. Energy gap of a semiconductor

1eV

48. Pure silicon

ELECTRON AND PROTON ARE EQUAL IN NUMBERS

49. The mostly used semiconductor material in manufacturing electronic devices

GE, SI AND GAAS

50. The most extensibly use semiconductor

SILICON

51. An intrinsic semiconductor has ___ bond that forms … tetra???

COVALENT

52. PN junctions are protected from contamination during the fabrication process by which materials?

OXIDE

53. Advantage of GaAs to Ge and Si.

FASTER

54. Of the following tests, which is the most valid for checking a diode

DYNAMIC ELECTRIC CHECK WITH DIODE TEST SET

55. What current flow in a semiconductor is due to the applied electric field?

Drift Current

56. A semiconductor equivalent to two diode in series with reversed polarity

THYRECTOR

57. Intrinsic semiconductors (or impurities?) have

COVALENT BOND FORMING TETRAHEDRAL STRUCTURE

58. A compound of the elements gallium and arsenic used in the manufacture of devices such as microwave frequency integrated circuits, monolithic microwave integrated circuits, infrared LED, laser diode, solar cells and optical window.

GALLIUM ARSENIDE (GaAs)

59. A solid form in which atoms, ion, and molecules are ordered in well arrangement

CRYSTALLINE

60. A structure of solid in which the position of atoms are predetermined

CRYSTALLINE

61. A liquid crystal that is least ordered and more liquid-like

NEMATIC

62. An ac electromagnet _______

ATTRACTS PURE, UNMAGNETIZED IRON

63. The force between a permanent magnet and a ferromagnetic material that is not yet magnetized is

NEVER REPULSIVE

64. Increase in space in electromagnetic circuit …

INCREASE RELUCTANCE

65. Advantage of electromagnet over permanent magnet

ELECTROMAGNET CAN BE SWITCHED ON AND OFF

66. When an ion …… on ground state…

IONIZATION ENERGY

67. …… expand the surface area….

SURFACE TENSION

68. Describes the color of radiation emitted by a blackbody at a given temperature.

WIEN’S LAW

69. Nonmetallic protection for wires and cables

FIBROUS BRAID

70. A button-shaped carbon composition resistor microphone.

BUTTON MICROPHONE

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 3 Module 7 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 3 Module 7

HALL OF FAME

1. Silver Sulfide was discovered by

MICHAEL FARADAY

2. invention of automatic regulators for use in conjunction with gas accumulators for illuminating lighthouses and buoys

NILS GUSTAF DALEN

3. discover the relationship between electricity and magnetism

HANS CHRISTIAN OERSTED

4. Invented/Patented IC

JACK KILBY

5. Boolean Algebra

SHANNON

TELL ME WHEN

UNCLASSIFIEDS

1. ….boson…

BOSE-EINSTEIN

2. Constant signal frequency output.

Stability

3. An electronic system changes depending on current or voltage( di ako sure sa tanong)

LINEAR ELECTRONIC SYSTEM

4. A noise generator that produces sequence of random (noise?) …

Van-McCArthney

5. The ability of dielectric material to have double refraction in electric field.

KERR-REFRACTO OPTICAL

6. To produce single lace conductor, the total length must be _________ times the length of the conductor. –

TWO AND ONE-HALF

7. Magnetic characters in your bank checks are produced by _____

MICR INSCRIBER

8. What sensing element typically made from a thin walled tube formed into deep convolutions and sealed at one end, whose displacement can then be made to act on a transduction element

BELLOW

9. … uses RF …

Bunching

10. The electric current or movement of electric charge carriers, which is due to the applied force, that is of stated as electromotive force over a given period of time is called _____

DRIFT CURRENT

11. Type of manufacturing which is composed of two or more cells and material transport

mechanism.

CENTER

12. power rating… _______ is much better compare to stand-alone

SERIES-PARALLEL

13. bandstop also known

BAND SUPPRESSION/BAND REJECT

14. …. 6 rectifying elements/ A three-phase, full wave rectifier, using six elements …

GRATZ RECTIFIER

15. supervisor program

MANAGEMENT

16. voltage of gate (FET)

HIGH POSITIVE

17. Randomly sequence of square pulses

VOSS-MCCARTNEY

18. UJT forward

B1-EMITTER

19. UJT reverse

EMITTER TO B2

20. check….

MIRC INSCRIBER

21. ELECTROACTIVE POLYMER

22. The ratio of the electron beam voltage to the two-third of the electron beam current…

PERVEANCE

23. Property that define the volume of a solid at melting temperature

GRAM-ATOMIC VOLUME

24. to smoothen..

AMPLIFICATION AND DAMPING

25. POCKETS

26. most common error

COUNT-HOLD

27. The approved method in conformal coating removal:

Mechanical

Thermal

_________

CHEMICAL

28. Glows when struck with energized electron of the cathode

PHOSPHOR

29. Generator of flat frequency produce /Frequency noise source response and shows anomalies …

PINK NOISE

30. Generate two or more tone produce

INTERMODULATION SIGNAL

31. Lightning arrester is located

NEAR THE TRANSFORMER

32. . . . Rate of constant . . .

BOSE EISEN

33. LED (GaAs, GaP used)

EMITS MORE LIGHT

34. Advantage of LCD over LED

 

35. formula for overall transmission

MASON'S THEOREM

36. nucleon ...

RADIATION SENSING

37. the work required to pull off a ??? from an electron... is called ___.

FIRST IONIZATION POTENTIAL

38. Residential defect . . .

BROWNOUT

39. High technology controllers

A. Off time

B. Sensors

C. VISION SYSTEM

40. “ONLY WHEN THE POTENTIAL …….EXCEEDS THE POTENTIAL BARRIER”

41. High temperature environment uses

SILICONE RUBBER

42. Prevent ….

SNAP-ACTING SWITCH

43. A rattail is used when a branch circuit is required and to join conduit a ____ is used

JUNCTION BOX

44. “road-interfaced oriented lines”

KIKUCHI LINE

45. Kikuchi line is made up of _____ lines

BLACK AND WHITE

46. The impedance at specified terminal where all internal sources are shorted but their impedances retain.

INPUT IMPEDANCE

47. When a large aluminum terminal lug or splice is installed, why is it NOT necessary to clean the aluminum wire?

THE WIRE IS CLEANED BY THE ABRASIVE COMPOUND IN THE LUG OR SPLICE

48. A neon lamp move with two parallel transmission line glows it’s brightest at

MAXIMUM VOLTAGE

49. Cholestoric crystal is discolored/ colored because of?

SLIGHT TWIST BETWEEN LAYERS

50. “Driven point impedance”

INPUT IMPEDANCE

51. In root-focus point analysis, … used to produce a steady-state-error with step input are:

Backlash

Deadzone

???

52. Depends on number of pole pairs in motor

NO. OF PHASES

53. Thermal Inertia

54. Stability

55. relates the decay constant of a radioactive isotope with the energy of the alpha particles emitted

Geiger-Nuttal Law

56. Electromotive force

57. Without connecting directly to the circuit load

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 3 Module 6 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 3 Module 6

COMPUTER FUNDAMENTALS

1. ____ code that states the exact location of the item or data to be found which is stored in the computer.

ABSOLUTE CODE

2. It is prescribed in file handling programs

UTILITIES

3. Image resolution is specified by

DOT PITCH

4. NAND: if set is 1, clear is 0. Then, set is 0, latch is

HIGH

5. LASCR is like an ordinary SCR except that it is

LIGHT TRIGGERED

6. using graphical images

GUI

7. What distinguishes J-K Flip flop to S-C flip flop

TOGGLE CONDITION

8. Computer uses complementary subtraction to

SIMPLIFY THE CIRCUIT

9. What do you call to the first byte of machine level instruction?

OP-CODE

10. The weakest link in any communication system

THE PEOPLE IN IT

11. the higher level of RAID

DATA STRIPING

12. keeps track of the binary margin

WORD WRAP

13. computer literacy has the following components:

Awareness

Knowledge

________

INTERACTION

14. supercomputer (7072 trillion)

BLUE GENE/L

15. RS filp flop R=0, S=0

REMAINS THE SAME

16. like latch, flip – flops belong to the category known as __________ multivibrator

BISTABLE

17. Multivibrator with uncertain output

S C

18. Toggle condition for JK flip flop

J=1, K=1

19. Advantage of ECL

HIGHER GAIN

20. The memory area for programs with highest priority

FOREGROUND

21. In computer system, central processing unit is a

HARDWARE

22. Saturated logic circuits have inherently low ____

SWITCHING SPEED

23. One unique operating feature of ECL is that it can operate in ______ speed.

VERY HIGH

24. Command awaiting in by the user

PROMPT

25. Basta ung may ellipses (…)

DIALOGUE BOX

26. Program which can be sabotage at a certain condition.

BOMB

27. Noise margin is measured in _____

VOLT

28. floating points of operations per second

FLOPS

29. device to make calculations easier

COMPUTER

30. CPU controls the ALU

THIRD STEP

31. pre-written standard file- handling programs

UTILITIES

32. Least propagation delay

TTL SCHOTTKY

33. Type of memory that must be removed physically to change the content

EPROM

34. device between connection of LAN that uses internet protocol

IP SWITCH

35. In PNP transistor, power supply is connected so that ____ is negative with respect to emitter

COLLECTOR

36. Basic component of a Computer:

POWER SUPPLY

37. The use of an interactive terminal workstation usually with graphics capability to automate the design of products. It includes functions such as drafting and fit up parts

CAD

38. Central processing unit is a part of

HARDWARE

39. Prewritten standard for file handling program

UTILITIES

40. Connection between the CPU and memory

CACHE

41. Keeps computer running though the RAM is slow.

Cache

42. In high level programming with peripherals, controllers are:

OFFLINE PROGRAMMING

43. (1)xxx, (2)sensors, (3)___

44. use to have two numerals in one byte

PACKED BCD

45. ECL (note: this has the fastest switching)

LOW PROPAGATION DELAY

46. Software written for a group of like consumer

VERTICAL

47. ______ simulation. Top-most (or simply the best) type of simulation.

ARCHITECTURE

48. The act of persuading people to tell their passwords is called ___ engineering.

SOCIAL ENGINEERING

ELECTRONIC EFFECTS/CONSTANTS

1. Geiger-Niall Law states that short lived isotopes emit ____ energetic alpha particles than long lived ones.

MORE

2. A magnetic field when applied to a right angles to the direction of a temperature gradient in a conductor , a temperature difference is produced at right angles both to the direction of temperature gradient and the direction of the magnetic field.

LELUC EFFECT

3. The development of charges in a certain in crystal when they are unequally heated or cooled

PYROELECTRIC EFFECT

4. The potential difference between two parallel electrodes is given by the product of the churva and the distance between the parallel electrodes

PASCHEN’S RULE or PASCHEN’S LAW

5. The distortion in a facsimile record caused by unwanted modulation produced by a carrier signal.

KENDALL EFFECT

6. The development of DC voltage in a semiconductor or metal by an acoustic wave travelling parallel to the surface of material.

Acoustoelectric effect

7. The continuation of collector current in a transistor for a short time after the input signal has dropped to zero. The effect is due to storage of minority carriers in the base region

BACK- PORCH EFFECT

8. The effect at the receiving end of an open circuited terminal that is lightly loaded

FERRANTI EFFECT

9. Appearance of RF current oscillation in a DC bias slab of n – type GaAs in 3.36V electric field.

GUNN EFFECT

10. Effect used in gauss meter used to measure flux density

HALL EFFECT

11. The effect that describes the ability of a mechanically stressed ferromagnetic wire to recognized rapid switching of magnetization when subjected to a DC magnetic field.

WIEGAND EFFECT

12. It refers to condition in which nucleus is stimulated sharply to define beam of gamma

MOSSBAUER EFFECT

13. A non radiative transition of an atom from an excited energy state to a lower energy state, accompanied by the emission of and electron

AUGER EFFECT

14. “the electric current destroy the superconductivity… without raising the cryogenics temp”

SILSBEE EFFECT

15. Factor used to correct for the electrostatic force of the far distant ion in the ionics.

MADELUNG CONSTANT

16. The liberation or absorption of heat when an electric current flows from a warmer to a cooler part of a conductor.

FULL EFFECT

17. The law that the ratio of the thermal conductivity of a metal to its electrical conductivity is a constant, independent of the metal, times the absolute temperature.

WEIDMANN-FRANZ EFFECT

18. The cumulative process in which an electron or other changed particle accelerated by a strong electric field collides with and ionizes gas molecules and thereby releasing new electrons that in turn have more collision

AVALANCHE EFFECT

19. the development of an electromotive force in a junction of two dissimilar metals when the temperature of the junction is different from that of the rest of the metal.

SEEBECK EFFECT

20. random variations in the output current of an electron tube that has an oxide- coated cathode, caused by random changes in cathode emission.

FLICKER EFFECT

21. Traverse magnetic field is applied to an N-type semiconducting filament holes injected into the filament are depleted to the surface, where they may recombine rapidly with electrons or be withdrawn by a probe. The overall effect is an increase in conductance.

SUHI EFFECT

Complete List of Electronics Engineering Coaching Materials

---

This is the Section 3 Module 5 of the compiled Electronics Coaching Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and other Electronics References. This particular Coaching Notes in Electronics Engineering has random Questions and Answers in random topics. Make sure to familiarize each questions to increase the chance of passing the ECE Board Exam.

Electronics Engineering Coaching: Section 3 Module 5

INDUSTRIAL ELECTRONICS PRINCIPLES/APPLICATION

1. A nonmetallic material used to protect wires and cables

FIBROUS BRAID

2. Instrument used to monitor/measure animals’ activities (i.e., PH…)

Radio Pill

3. Biometry is used for:

Identification

Verification

_______

AUTHENTICATION

4. Test equipment that observes the performance and isolates the fault

ON LINE

5. Which must not be used in a wire with glass braid and asbestos

HOT BLADE WIRE STRIPPER

6. Transfer the features of substrate into the IC

LITHOGRAPHY

7. calculation of actuator forces to provide end-effector values

INVERSE DYNAMICS

8. Measures brain electrical activity using magnetic ...

MAGNETOENCEPHALOGRAPH (MEG)

9. The precessing rate of gyro is proportional to the ______

RATE OF GYRO CASE ROTATION

10. transfer of mechanical power from one place to another; gear ratio is constant

CHAIN DRIVE

11. Also known as end of arm tooling or simply a hand. The subsystem that links the mechanical portion of the robot (manipulator) to the part being handled or work on, and gives the robot the ability to pick yp and transfer parts and/or handle a multitude of different tools to perform work on parts.

END EFFECTOR

12. When you solder electrical connector splices, and terminal lugs, what type of solder should you use?

60/40

13. To turn SCR off from conducting state to blocking state by reducing the anode current below

HOLDING CURRENT VALUE

14. Minimum current required for SCR to conduct continuously

HOLDING CURRENT

15. LC oscillator with tapped capacitance in parallel with an inductance

COLPITTS

16. Prevent accidental actuator switch position

LOCKED POSITION

17. Due to slight change in resistance due to temperature, the material used for instrument

MANGANIN

18. Zener diode can be used as a voltage regulator by:

REVERSE - PARALLEL

19. Has no depletion region

SCHOTTKY DIODE

20. Schottky TTL diode family mostly used as

HARMONIC GENERATOR.

21. A negative resistance microwave diode that has thin film semiconductor material sandwiched between two parallel plates is called ____ diode.

PIN

22. an oscillator that produces the best sine wave output

WEIN BRIDGE

23. adds protection against sudden current increase when switching

AYRTON SHUNT

24. RANGES

25. It check the functionality of equipments

PREVENTIVE MAINTENANCE

26. To remove wick, the solder wick is placed __

BETWEEN JOINTS AND IRON

27. In Western Union splice ...

PUNCTURING THE TAPE COVERING

28. It consists of multiple microprocessors

3RD GENERATION ROBOT SYSTEM

29. Measurement of electric currents in the scalp..

EEG

30. the ___ of a triac in the 1st and 3rd quadrant is the same as .... of an scr

V-I CHARATERISTICS

ROBOTICS

1. In robotics, the loading/ unloading of cartoons, container, or pallet

PALLETIZING/ DEPALLETIZING

2. Robot actuators are: a.) electric, b.) pneumatic and ________ -

HYDRAULIC

3. Magneticreed and moving disk are used to measure _____ of a synchro robot

ROTATIONAL SPEED

4. Types of robot configuration: a.) Cartesian, b.) Cylindrical, c.) spherical and _____

ARTICULATED

5. skeleton of the body

KINEMATIC CHAIN

6. In robots, the recent alternative for DC actuator in piezo motor is also called as

ULTRASONIC

7. Integration of actuator such ADC, processor, ACD and a like is known as _______.

SMART SENSOR

8. The following are components in the robotics transmission: WAVE GENERATOR, REFLEXSPINE, _________

CIRCULAR SPLINE

9. The part of the restricted envelope where the robot performs its program is the _______ envelope.

OPERATING

10. End effector is called

END-OF-ARM-TOOLING (EOAT)

11. An overhead mounted, rectilinear robot with a minimum of three degrees of freedom and normally not exceeding six.

GANTRY ROBOT.

12. position sensor of Servo system

POTENTIOMETER

13. Service servo . . .over travel???

14. Constant movement of robot

POSITIONING

15. Robots used as __________ has the end-effector at the last link.

Manipulators

16. Position of the switch

ACTUATOR

17. large man-sized adept-type robot –

SCARA CONFIGURATIONS, SERVED Z AXIS, DIRECT

18. DRIVE MOTORS

19. Movement about an axis perpendicular to the line and top of the body

YAW

20. A robot that repeats the same sequence of motions in all its operations, and is first instructed by an operator who puts it through this sequence.

PLAYBACK ROBOT

21. Robot that can move like a person’s arm

ANTHROPOMORPIC ROBOT

22. When human is trapped in the robot work envelope without an avenue of escape

PINCH POINT

23. In synchros, multispeed advantage over single speed

GREATER ACCURACY

24. Robot in which motions are controlled by driving each axis or degree of freedom against mechanical limit stop.

BANG BANG ROBOT

25. What robot programming loaded the program in a remote computer console

OFF-LINE PROGRAMMING

26. Work envelope of robot

RANGE AXISOF MOTION

WELDING

1. In arc welding, DC is produced in

MOTOR GENERATOR SET

2. Type of electric arc welding that uses arc to continuously fed flux-filled electrode.

FLUX-CORED ARC WELDING (FCAW)

3. Small current shall not be used but rather large current in <welding> because it cannot maintain thermal conductivity while

GIVING OFF HEAT TO THE CONDUCTOR

4. In welding, the energy required is coming from the discharging capacitor

PEW (percussion welding)

5. AC welding machine is not used in ___ welding.

MIG

6. Welding process whereby a filler metal is heated above and distributed between two or more close-fitting parts by spontaneously raises the liquid… uses a liquidus within 450 degrees.

BRAZING

7. Weld bulbs wineglass design are made from

PLASMA ARC WELDING

8. . . . oxy fuel flame. . .

OXY FUEL WELDING

9. FRICTION WELDING

10. Welding technique which produces coalescence of metals by applying heat with an arc between a non consumable carbon electrode and the work piece

CARBON ARC WELDING

11. MIG (metal inert gas) is used because of its operation and ________.

HIGH MELTING DYNAMIC RANGE

12. In removing solder, the wick must be placed ______.

BETWEEN THE JOINTS AND IRON

13. In automatic welding, the first interval where the material is held together.

SQUEEZE INTERVAL

14. The portion in welding process interval during which the welding current is flowing

HEAT- SUBINTERVAL

15. bead of wineglass design

PLASMA ARC WELDING

Complete List of Electronics Engineering Coaching Materials

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