Electronics Engineering Exam 5: ECE Pre-Board – Answers

(Last Updated On: December 8, 2017)

Electronics Engineering Exam 5 - Answers

Below are the answers key for the 100 items set of Practice Examination 5 in Electronics Engineering composed of previous Board Exams Questions and cautiously selected questions from various topics in Electronics Engineering that could possibly be given in the board.

1. atom

2. 5

3. Protons, electrons, and nucleus

4. It is made up of protons and neutrons.

5. 14

6. 32

7. M

8. In the most distant orbit from the nucleus

9. When a valence electron breaks away from the atom

10. When an atom gains an extra valence electron

11. Silicon

12. Conduction band

13. By thermal energy

14. recombination

15. All of the choices

16. eight valence electrons, four of its own and four shared

17. By both electrons and holes

18. Both A and B above

19. All of the choices

20. Doping

21. Trivalent

22. To increase number of free electrons

23. Conduction electrons

24. Minority carriers that are thermally produced

25. By the boundary of p-type and n-type material

26. All of the choices

27. Positive and negative ions

28. The dc voltage applied to control the operation of the devices

29. Either A and B above

30. The current is produced by both holes and electrons

31. Minority carriers

32. Greater than 0.7 V

33. When forward-biased

34. The diode barrier potential

35. forward-biased

36. Equal to the average value of the rectified voltage

37. increases

38. A half-wave rectified voltage

39. voltage but not for current

40. more positive than the anode

41. The changes in the output voltage and input voltage

42. The changes in load current and output voltage

43. Both A and C

44. 81.2%

45. twice

46. one-half

47. 40.6%

48. Center-tap

49. 100 Hz

50. Four

51. higher

52. Bridge type

53. Capacitor input

54. Electrolytic

55. 50 Hz

56. more than

57. more

58. Impedance matching

59. 10

60. 2

61. 1 V/μs

62. ± 5%

63. 64

64. 6

65. 3

66. 2

67. 6

68. Dynatron effect

69. Singing-stovepipe effect

70. Compton effect

71. Debye-Sears effect

72. Photoelectromagnetic effect

73. The number of protons in the nucleus

74. Ted Nelson

75. Larry Roberts

76. Norio Taniguchi

77. Plasmons

78. Bob Metcalfe

79. Douglas Engelbart

80. Marc Andreesen

81. Tim Berners-Lee

82. Both Vinton Cerf and Bob Khan

83. Tim Berners-Lee

84. Channel effect

85. Damon effect

86. Edge effect

87. Fringe effect

88. Zener effect

89. Thomson effect

90. Tunnel effect

91. Photovoltaic effect

92. Miller effect

93. Hall effect

94. Leduc effect

95. Flywheel effect

96. Dember effect

97. Bequerel effect

98. Island effect

99. Malter effect

100. motor effect

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Complete List of Electronics Engineering Exams: ECE Pre-Board

Electronics Engineering Exam 5: ECE Pre-Board – Answers
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