This is the Section 1 Module 20 of the compiled Electronics Review Materials taken from different sources including 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 20
1. The number of free electrons and holes in an intrinsic semiconductor increases when the temperature
Increases
2. At unity-gain frequency, the open-loop voltage gain is
1
3. In active region, base-emitter junction is ________ bias, while base-collector is __________.
Forward-reversed
4. A magnetized part represents logic…
1
5. An octave is a ratio of different frequencies with the ratio of
2
6. An decade is a ratio of different frequencies with the ratio of
10
7. What is the maximum number of electrons that you can find in the k shell of a silicon atom
2
8. Configuration used for impedance matching
VDB
9. Most commonly used transistor configuration
CE
10. If the temperature of a semiconductor increases, electrical resistance…
Decreases
11. Net charge of a germanium
14e C
12. For ideal assumption, zero current flows to what kind of semiconductor
Both SI and Ge
13. Negative feedback configuration has a phase shift of
180°
14. 1 Oersted is equal to
1 Gb/cm
15. Operating voltage range of LED
1.7 – 3.3 V
16. Operating voltage range of LED (doble talaga)
1.7 – 3.3 V
17. Power Consumption of LED
150 mW
18. Which of the following has the lowest Zin?
JFET
19. The input and output impedance of a CC circuit
High, low
20. If B equals conductance in an parallel RLC circuit, pf would be…
0.707
21. In a parallel RLC circuit, if the frequency increases above resonant frequency…
The circuit becomes capacitive
22. Another term for environment/ system…
23. Capacitor’s operation during positive half cycle
Diffusion
24. The development of a voltage between the two-edges of a current currying metal strip whose faces are perpendicular to magnetic field
Hall effect
25. Pauli Exclusion Principle
26. Which does not belong to the group…
Download
27. The time when a processor gets instruction is called
I-time
28. The time when a processor executes the instruction is called
E-time
29. CPU processes…
Binary
30. Which of the following actuators is used in industry?
AOTA. (Fluid, air, electric)
31. Advantage of electric actuators
AOTA. (velocity control, etc.)
32. Advantage of electromagnet over permanent magnet
It can be turned on and off
33. System for small business
SOHO
34. Available for purchase software
System software
35. CIS means
Computer Information System
36. First generation language
Machine language
37. Advantage of parallel connection
Appliances can be operated independently
38. Other term for pixel/resolution
Dot pitch
39. Number of electrons orbiting around the atom of Germanium
14
40. A question about AND gate
41. A question about AND gate
42. A question about NOR gate
43. Mass of proton
1836e
44. Ratio of mass of proton and electron(approximate)
1800
45. In active region, base-collector junction is ________ bias, while base-emitter is __________.
Reversed, forward
46. What does permittivity do with field intensity
It decreases field intensity
47. Reduction of magnetizing force
Coercivity
48. Connections of flip-flop
Sequential circuit
49. If power factor increases
Active power increases
50. Programming and testing are elements of
System development
51. Control element directs ALU to perform an operation on data, mechanical cycle involved is?
Third step
52. Data analysis and data gathering is done
After the system survey
53. Management of operating system
The supervisor program
54. Time sharing of resources of users
Based on time slices
55. CD ROM has the same format as
Audio compact disk
56. Static memory can saved data
Even without power
57. SPECIFYING the kind of input,process and output
Defining the problem
58. Central device which connects node of star network
Hub
59. Current gain of common base
Less than 1
60. Optical character recognition device
Wand reader
61. Byte per inches in dynamic memory
1
62. Two opposite magnetic poles is ___ to the permeability of the material
Inversely proportional
63. Diode is in non conductive region
Open
64. Preliminary of the project
Feasibility
65. Mark sensing refers to
OMR
66. DASD refers to
Disk storage
67. Electrical circuitry that execute program
CPU
68. Entire computer system is coordinated by
Control unit
69. Allocating of main memory separated to one another
Memory management
70. Robot that moves on any position in specific path
Continuous path program
71. POS terminal is the same as
Cash register
72. In multiprogramming, 2 or more program can execute
Concurrently
73. OLE refers to
Embedding
74. OCR-A is a
Standard typeface
75. Part of the program is stored in a disk and is brought to the memory to execute as needed
Virtual storage
76. Resulting output signal of differential amplifier is zero
Single ended
77. If the robot moves on several axis
Compound motion
78. Sequential data memory uses what memory circuit?
Shift register
79. Number of axis of robot
Degree of freedom
80. Program written for customer
Vertical
81. Source data automation
82. Has the highest number of free electron
Conductor
83. Output impedance of common emitter configuration
40k-50k ohms
84. What is the use of ladder network
Converts digital to analog signals
85. Rate of screen refreshment
Scan rate
86. Most use model in the analysis of diode
Simplified model
87. When VD=0, transit capacitor is equal to
3 pF
88. Faster computer because of fewer instruction
RISC
89. Bus line is consist of
Parallel wire path
90. Magnetic
Byte per inches
91. A _____ is a storage device used to accommodate a difference in rate of flow of data or time of occurrence of events when transmitting from one device to another.
Buffer
92. Nonvolatile memory
Flash memory
93. Which of the following reel can be change
Supply reel
94. Which band is the donor level nearer?
Conduction band
95. Transfer of data intended for a peripheral device (usually a printer) into temporary storage
spooling
96. A theory which states that electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another
Bohr theory
97. Data striper
98. The development of a voltage between the two edges of a current currying metal strips whose faces are perpendicular to magnetic field
Hall effect
99. A program which can be executed on several different computers to compare their speed and performance
Benchmark
100.Which of the following is not an internal digital IC fault?
Poor solder connections
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