This is the Section 2 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 2 Module 3
INSTRUMENTATION
1. Voltage applied in the horizontal plate of an oscilloscope
SWEEP
2. What is used in dynamometer to measure high current
CURRENT TRANSFORMER
3. What unit establishes the value of reference control system
REFERENCE SELECTOR
4. In scaling adder, resistors are proportional to the____ of the input
WEIGHT
5. In DC voltmeter, low sensitivity is good for measuring
LOW RESISTANCE
6. No insertion loss
CLAMP AMMETER
7. A simple proximity sensor do not measure
DISTANCE
8. Permanent magnet moving coil
D’ ARSONVAL
9. Error in ammeter
IDLE BATTERY
10. Equipment most commonly used in DC
DIFFERENTIAL VOLTMETER
11. A meter sensibility control in test equipment would be
LINEAR TAPER POTENTIOMETER
12. An AC bridge that measures mutual inductance
HEAVISIDE BRIDGE
13. Combination of voltmeter, milli-ammeter, and ohmmeter
VOLT OHMMETER
14. Dynamometer is mostly used as
WATTMETER
15. The voltmeter should be connected in_______ when measuring a circuit.
PARALLEL
16. In pulse radar system, ______ controls the timing in the whole radar system
SYNCHRONIZER
17. Used in aircraft to detect distance and location
RADAR
18. Inductor used to impede the flow of alternating or pulsating current
CHOKE
19. The greater the internal resistance in an ohmmeter,the ________ power dissipation will be
LESSER
20. A four-arm ac bridge used in measuring unknown inductance by a standard capacitance
MAXWELL BRIDGE
21. What oscillator circuit uses a tapped coil in the tuned circuit? (NASA 3001)
HARTLEY
Colpitts
Crystal
Pierce
22. Diode used as envelope detector
SIGNAL DIODE
23. Output of control transducer
ERROR SIGNAL
24. Measures relative humidity
PSYCHROMETER
25. Type of deflection used in oscilloscope
ELECTROSTATIC
26. Use to measure inductance and capacitance in high frequencies
RADIO FREQUENCY BRIDGE
27. Vibrational speed meter and rotating disk technology is used to measure _____.
ROTATIONAL SPEED OF THE SYNCHRONOUS
28. Moving-iron instrument indicator
SQUARE
29. Two types of bolometers
BARRETTER AND THERMISTOR
30. Simple, cheapest rugged analog meter
MOVING ARSONVAL
31. Unscale meter of AC and DC
MOVING IRON
32. Device that measures the electrostatic force
ELECTROSCOPE METER
33. Temperature coefficient of thermistor
POSITIVE OR NEGATIVE
34. The two types of bolometers are
BARRISTER AND THERMISTOR
35. The first temperature scale that gain acceptance
FARENHEIT
36. Bridge circuit used to measure electrical _____ and dissipation factor
SCHERING BRIDGE
37. The Flow of calorimeter…
FLOW OF CIRCULATION
38. Device used to measure mechanical rotation frequency
TACHOMETER
39. In oscilloscope, what is being controlled by _____ between nodes
FOCUS
40. Represent visual presentation of waveform applied in the input terminal
CATHODE RAY OSCILLOSCOPE
41. It is used in oscilloscope
CRT
42. It measures low resistance
KELVIN BRIDGE
43. It is used as A Notch In Harmonic Distortion Analyzer
WIEN BRIDGE
INDUSTRIAL ELECTRONICS
1. _____ reduced the effect of accidental triggering SCR
RATE
2. Device with smallest turn-off time
LASCR
3. Material used to stripped off aluminum wires
KNIFE
4. Branch of electronics related to spin orientation of electronic
SPINTRONICS
5. The gas discharge lamps are neon glow lamp and__________
FLUORESCENT LAMP
6. The unit for measuring radioactivity
CURIE
7. It is the releases energy
EXOTHERMIC REACTION
8. Mammogram use in testing for woman without breast cancer
SCREENED MAMMOGRAM
9. Coating of churva to be solder by thin coating of solder
TINNING
10. ____ is in on state when the SCR is fired up and conducting
NPN/PNP
11. An active device
SCR
12. Circuit connection commonly used in LCD
BACKPLANE
13. First step in repairing scorched and burned boards
REMOVE THE DISCOLORED MATERIAL
14. Solder used for high temperature and high pressure
SILVER
15. Type of solder with lowest melting point at 180 degree Celsius
TIN LEAD 63:37
16. When unbiased junction is formed, _________ exist.
CONTACT POTENTIAL
17. Base metal penetration is deep
DCRP
18. Visual inspection of a completed repair is conducted to evaluate which of the following aspects of the repair?
WORKMANSHIP QUALITY
19. A system where the physical position is maintained is referred to as _____ system.
SERVO
20. The arrow in synchro servo represents the _______ of the rotor.
ANGULAR POSITION
21. The SI unit of radioactivity is
BECQUEREL
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