Electronics Engineering Review Materials: Section 1 Module 9

This is the Section 1 Module 9 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.

Electronics Review Materials: Section 1 Module 9


Electronics Engineering Reviewers: Section 1 Module 9

1. Each capacitance in R-jXc

- has a unique value of resistance and reactance

2. Capacitive susceptance is

- positive and imaginary

3. Magnetic line of flux said to originate in

- magnetic north

4. For step input, output of integrator is

- ramp

5. Period of ac sine wave is equal to

- equal to one divide frequency

6. Multiplier of basic integrator is

- -1/RC

7. Phase angle is equal to

- X/R

8. Sending insulting messages to mass advertisers

- flaming

9. For normal operation of transistor, collector diode has to be

- reverse biased

10. A device that changes frequency in changing voltage capacitance

- varactor diode

11. Main feature of crystal oscillator

- great stability

12. What is NOS

- operating system of a network

13. OTA is basically a

- voltage to current amplifier

14. Another term for operating environment

- shell

15. Presence of both data and instruction in the object

16. Image resolution is

- dot pitch

17. Not practically belongs to manufacturing of IC

- inductor

18. Holding current means that

- the value of current w/c if the current value falls below it the device will turn off

19. Difference voltage of the input is ideally in amplifier, what is the output?

- zero

20. Ability of the browser to divide page into independent rectangle

- frames

21. Capacitor with negative temperature coefficient

- value increases as the temperature decreases

22. Auditor checking and scanning applicants aides the

- data security

23. Drawing flowchart means that

- planning the solution

24. Programming and testing are the elements of

25. Normalized gain of cut off frequency

- -3db

26. Treating a wire as a conductor with no resistance

- ideal approx

27. Ideal voltage source with resistance

- 2nd approx

28. Knee voltage is approximately equal to

- barrier potential

29. Barrier potential of silicon in room temperature

- 0.7V

30. Norton’s theorem replaces a complicated circuit.

- current source with parallel resistor

31. Thevenin’s theorem replaces a complicated circuit.

- voltage source with series resistor

32. Input of RS flipflop

-set and reset

33. Heat sink reduces

- junction temperature

34. In a ram

- easy to get data in and out

35. If X=1, Y=1, then X+YZ=

- always 1

36. Input impedance not applicable to JFET


37. A real current source has

- large internal resistance

38. A comparator with hysteresis

- Schmitt trigger

39. Converts assembly language to machine language

- assembler

40. The decade which the first transistor was invented

- 1940’s

41. A FET is _______ controlled device

- current

42. A circuit that can change frequency with application of DC voltage


43. Application of diode detector

- radio receiver

44. Main problem of bar-graph meter

- it does not give accurate measurement

45. Output of a bridge rectifier

- full wave signal

46. When R/L ratio approaches to zero, phase angle is

- approaching 90 degrees

47. Each point in RL plane

- corresponds to unique combination of resistance and inductive reactance

48. A semiconductor material is made into N-type by

- adding donor impurities

49. The channel in a zero biased JFET is normally has

- drain to source current

50. Reverse current is consist of minority carrier current and

- surface leakage current

51. The ac resistance of compensating diode

- compensates for temperature change (EREVIEW); is usually small enough to ignore (book)

52. In many cases, PNP transistor can be replaced by NPN transistor and the operation will be the same provided that

- the polarity of the supply voltage is reverse

53. In series RL circuit., as the resistance becomes smaller compared to reactance, the angle of lag approaches

- 90 degrees

54. Assume that an oxygen atom consists of 8 protons 8 neutrons and 2 neutrons added, what is the atomic weight?

- 18

55. The ____ source resistance and/or ____ the load resistance, less the overall gain...

56. A network that employs one powerful central computers and several PCs is a

- server

57. In a differential amplifier, w/c of the following terminals are connected together

- bases (twice lumabas)

58. In a differential amplifier, w/c of the following terminals are connected together

- bases (twice lumabas)

59. The larger the capacitive elements of the design, the ____ cut off frequency

- smaller

60. The smaller the capacitive elements of the design, the _____ the cut off frequency

- larger

61. The software that uses a hierarchical menu structure to organize and search the net

- gopher

62. An IC unit made using _____ and ____ transistor is called ____ circuit


63. Breakdown does not destroy zener, provided that zener

- does not exceed reverse breakdown current rating of the diode

64. Which of the ff. Gives constant output voltage

- transistor and zener

65. passes no signal above that frequency is called _____ filter

- low pass filter

66. The valence electron of a copper atom is removed. The net charge of the atom is

- +1

67. An intrinsic silicon when at room temperature

68. In RL frequency response,

- non linear squared

69. Class of amplifier that is used in pulse operation

- class D

70. The amount of time between the creation and disappearance of a free electron

- lifetime

71. In impedance matching, to connect a high Zi to a low Zo, what terminal is connected to?

- common collector

72. Why there is 2 load line in the op amp?

- because it has two equivalent circuits

73. Varactor is

- diode has variable capacitance

74. Type of amplifier commonly used at the output of op amps

- complementary amplifier

75. A circuit that removes part of a waveform above or below a specified level

- limiter

76. Lowest level of programming language

- machine language

77. Running the program to detect, locate and correct Mistakes ( logic errors)

- debugging

78. The most powerful computers are the _____

- super computer

79. The registers that collect the results of computation are _____

- accumulators

80. The speed with which a disk can find data being sought is called

- access time

81. When the base resistor decreases, the collector voltage will

- decrease

82. VDB normally operates in the

- active region

83. Unit of transconductance

- mhos or siemens

84. Straight line drawn on the collector curves bet the cutoff and saturation pts of the transistor

- load line

85. Advantage of positive feedback

- greater gain

86. At resonance, the circuit behaves as a ______ load

- resistive

87. When an op amp is not saturated, the two input voltages are

- ideally equal

88. A flip-flop sensitive to pulse duration

- latch

89. Relatively small amt. of very fast memory that stores data and instructions that are used frequently resulting in an improved processing speed

- cache

90. An LC oscillator cannot be used to produce

- very low frequencies

91. An oscillator produces ______

- undamped

92. Coupling that provides maximum voltage gain

- transformer

93. The gate of the JFET has

- high impedance

Section 1 Modules: Reviewers in Electronic Engineering

Post a Comment

Contact Form


Email *

Message *

Powered by Blogger.
Javascript DisablePlease Enable Javascript To See All Widget