This is the Section 1 Module 6 of the compiled Electronics Review Materials taken from different sources including but not limited to Electronics books, past Board Exams Questions, Journals and the Internet. This particular reviewer 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 Reviewers: Section 1 Module 6
1. A positive electric pole
- has fewer electrons than the negative pole
2. A ferromagnetic material
- concentrate magnetic flux line with in itself
3. One advantage of electromagnet meter over permanent-magnet meter is that
- the electromagnetic meter is more rugged
4. To measure power supply voltage being used by a circuit, a voltmeter
- is placed in parallel with the circuit that works from the supply
5. Which of the following is not function of fuse
- to be sure there is enough current available for an appliance to work right
6. A wiring diagram would most likely be found in
-the service/repair manual for a radio receiver
7. You have an unlimited supply of 1 watt, 1000 resistors and you need a 500 resistance rated at 7 W or more. This can be done by assembling
- 4 sets of 2 1000 ohm resistor in series and connecting these four sets parallel
8. Good engineering practice usually requires that a series parallel resistive network be made
- from resistors that are all the same
9. Bleeder resistor
- are connected across the capacitor in a power supply
10. An advantage of rheostat over potentiometer is that
- can handle more current
11. The chemical energy in a battery or cell
- changes to kinetic energy when the cell is used
12. A Weston cell is generally used
- as a voltage reference source
13. A direct short circuit of a battery can cause
- an explosion
14. Alkaline cells
- are generally better in radios than zinc carbon cell
15. Advantage of alkaline cell over a zinc carbon cell is that
- alkaline cell works at lower temperature
16. In which of the following place would you most likely choose a lithium battery
- a microcomputer memory backup
17. Where might you could find a NICAD battery
- in a handheld radio transceiver
18. A disadvantage of mercury cells and batteries is that
- they pollute the environment
19. An interactive solar power system
- allows a home owner to sell power to the utility
20. Which of the following is not generally possible in a geomagnetic storm
- disruption of microwave radio links
21. A device that reverses magnetic field polarity to keep a DC motor rotating is
- commutator
22. An advantage of magnetic disk as compare with magnetic tape for data storage and retrieval is that
- data can be stored and retrieve more quickly with disk than with tapes
23. A bubble memory is best suited for
- large computer
24. An application in which an analog meter would almost always be preferred over a digital meter is
- signal strength indicator in a radio receiver
25. A hot wire ammeter
- can measure AC as well as DC
26. A primitive device for indicating the presence of an electric current is
- a galvanometer
27. An advantage of magnetic disk over magnetic tape for data storage is
- data storage and retrieval is faster on disk
28. The purpose of a bleeder resistor is to
- protect people against the danger of electric shock
29. A material with high permeability
- concentrate magnetic lines of flux
30. On a spectrum analyzer, a pure AC signal, having just one frequency component, would look like
- a single pip
31. If two wave have the same frequency and the same amplitude but opposite phase the composite wave is
- zero
32. Advantage of AC over DC in utility application is
- AC is easier to transform from one voltage to another
33. Which of the following does not affect the capacitance of a capacitor
- the frequency
34. The inductance of a coil can continuously varied by
- varying the net core permeability
35. Inductive susceptance is
- negative imaginary
36. Which of the following does not result from adding an acceptor impurity
- the substance has an electron surplus
37. If the reverse bias exceeds the avalanche voltage in a PN junction
- the junction will conduct current
38. a diode audio limiter circuit
- can cause objectionable signal distortion
39. a Gunnplexer can be used as a
- communication device
40. the power form of a solar panel depends on all of the following except
- the operating frequency of the panel
41. emission of energy in a IRED is caused by
- electron energy level changes
42. a current surge takes places when a power supply is first turn on because
- the filter capacitor (s) must be initially charge
43. bleeder resistors are
- connected in parallel with filter capacitors
44. the current through the channel of a JFET is directly affected by all of the following except
- transconductance
45. the input impedance of a MOSFET
- is extremely high
46. which of the following amplifier types produce the least distortion of the signal wave form
- Class A
47. how can a Class C amplifier be made linear
- a Class C amplifier cannot be made linear
48. in an oscillator circuit the feedback should be
- just enough to sustain oscillation
49. the different sound of musical instruments are primarily the result of
- differences in the wave shape
50. Persuading people to get password
- Social engineering
51. A RAID of duplicating data
- Data mirroring
52. Can tie network together in a wide area
- backbone
53. Insulator used in MOSFET
- SiO2
54. Another term for logic chip.
- microprocessor
55. Hardware/software comprises in computer system
- FORTRAN
56. Response time of LCD
100 ms- 300 ms
57. Turn on time of a highly energized SCR
10micro -25 micro seconds
58. Typical range of a variable capacitor CT in a varactor diode
- Picofarad-10 microfarad
59. Reverse resistance of a SCR
100-more than
60. Program made by the programmer employed by the organization is owned by
- The organization
61. Typical roll off time of an SCR
20dB/decade and -6db/octave
62. Magnetizing spot represents
- 1bit
63. Program the uses graphic icon
- GUI
64. Electric unit of power
- kilowatt hour
65. Memory is also known as
- primary storage
66. A Reel changes in magnetic tape unit
- Supply reel
67. Command that separates word processing from typing
- Edit, format, store
68. Kind of CRT with high resolution
- SVGA
69. ______ amplifier provides power in the output device
- Power
70. Built in protection for the user in a computer system
- User profile
71. CIS
- Computer Information System
72. Computer professional that test/write softwares
- programmer
73. Person taking the role of a changing agent
- system analyst
74. Which transistor fires on a SCR when on conduct in the conduction band
- both NPN and PNP
75. Use in LAN’s, INTERNET PROTOCOL
- IP Switch
76. Computer connected to a tv network
- net computer
77. Signal from computer can be converted before going to the transmission line
- microwave
78. An underlying system
- operating system
79. Error message from a compiler
- diagnostic
80. Free shell that a company can use to create its own computer
- cold site
81. Computer system where the transmit and processing of information in all in one location
- centralized
82. Software that use in public domain
- freeware
83. Reading high or low with forward and reverse bias of a transistor
- faulty device
84. Records of deadlines and milestones usually use
- Ghannt Chart
85. System use in hard disk backup that is the most efficiently for information
- tape backup system
86. Identification device that has a chip that inform the wearer’s location
- active badge
87. Most of the processing are done in the server
- server/client
88. Verifying with find and replace features
- Conditional replace
89. Entering data as a by product of the activity
- Source Data Automation
90. Testing of individuals program or module
- Unit Testing
91. Certain memory limit
- Memory Protection
92. Helps users with software
- Information Center
93. History of site
- Click Stream
94. Computer and memory is place in disperse location
- Distributed Data Processing
95. Scanning of letters and numbers
- Wand Reader
96. Language smalltalk is
- Object Oriented
97. Movement of holes in a semiconductor
- Result in a certain amount of Electric Current
98. Software written for like groups
- Vertical
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