Electronics Engineering Review Materials: Section 2 Module 11

This is the Section 2 Module 11 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 2 Module 11

This is the Section 2 Module 11 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 2 Module 11

1. 117V has peak value of

165V

2. 117V has peak to peak value of

331V

3. red, red, red, gold

2.2Kohm

4. gray, red, yellow

620Kohm

5. 45 Vdc connected to 117 Vac

210 to 120V

6. Vdc connected to utility Vac

pulsating dc

7. Given 1 watt 1000ohms resistors, to produce 7 watts

4 resistors in series, 4 sets in parallel

8. Phase difference

phase angle

9. Distance of vector from center

magnitude

10. Hayleigh -

11. Joshi effect - The change in the current passing through a gas or vapor when the gas or vapor is irradiated with visible light.

12. Grosh law – processing power of computer is proportional to square of cost

13. 180 degrees – if you add or subtract few degrees the wave will be inverted

14. 360 degrees - if you add or subtract few degrees the wave will still be the same

15. Pyranometer – measures radiation in the sky

16. primitive way of measuring current

galvanometer

17. VU meter is never used for measuring

- Energy

18. Proton – atomic number

19. Atomic weight – proton + neutron

20. Oscilloscope can’t be used to indicate

energy

21. Ohm – amount of opposition to current

22. Number of NAND to form OR gate

3

23. Three times increase in power level has increase of

5dB

24. Unit of sound level

decibel

25. Current – rate of flow of electron

26. Static – if _???___ charges without current passing

27. Increase in plate – increase in capacitance

28. Decrease in spacing – increase in capacitance

29. Volume controller of CD player – logarithmic-taper potentiometer

30. Metal-film resistor – has less reactance than wire-wound

31. Wire-wound resistor – high power dc circuit

32. Carbon-film resistor – non-reactive

33. Not characteristic of mica capacitor – small size

34. Watt-hour – watt being used at a time

35. Length of a cycle

period

36. Advantage of toroid over solenoid – concentrated at the core

37. Bulb connected in series, when shorted – current will increase

38. Move up – increase inductance

39. Insulator to conductor – ionizing

40. Best conductor – copper

41. Weak conductor – air

42. Air as dielectric – effective efficiency

43. Value of R in voltage divider – as small as the power supply allow

44. Biasing an amplifier circuit – can be done using voltage divider circuit

45. Max. voltage across voltage divider –equals the power supply

46. Gen. characteristic of voltmeter – large internal resistance

47. Which will not cause major error in ohmmeter reading – small change in resistance

48. Half-wave rectifier – half of wave is cut

49. Output of half-wave rectifier – effective value less than original

50. Peak voltage – greater than or equal to the average

51. Measuring device for magnetic field strength – magnetometer

52. NICAD – more than one of the choices

53. Lithium usually used in – microcomputer memory backup

54. Photovoltaic – light

55. Thermocouple – gets warm when current flows through it

56. Chemical compound – two or more atom

57. Permanent magnet – ferromagnetic

58. Does not affect inductance – diameter of wire

59. Opposite phase, same amplitude – zero

60. Twice voltage, half resistance – four times greater current

61. 15V

62. same phase, same amplitude – sum of two signals

63. will change in ac not in dc – frequency

64. wire-wound resistor is used for – large power dissipation

65. advantage of rheostat over potentiometer – can handle large current

66. in spectrum analyzer, an ac signal w/ one freq looks – single pip

67. temperature coefficient

68. a battery supplying constant current until it dies has – flat discharge curve

69. capacitor stores – electric field

70. small inductance – stores & releases quickly

71. movement in vector diagram – rotating counter-clockwise

72. sinewave

73. intensity of light is a measure of – current

74. high recording motor – video

75. advantage of magnetic disk over magnetic tape – fast retrieval & access

76. relay – normally open

77. atomic number – number of protons

78. wiring diagram vs. schematic – components in wiring diagram have values

79. a certain current in a galvanometer cause 20deg deflection, when current is doubled needle deflection will – increase

80. a utility meter readout indicates – energy

81. carbon-composition resistor – comparatively non-reactive

82. fill in the blanks – power

83. device that reverses magnetic field polarity to keep a dc motor rotating – commutator

84. an application in which an analog meter is preferred – a signal strength indicator in a radio receiver

85. which of the ff. is not a gen. characteristic of an ac wave – electrons always flow in the same direction

86. 1/360

87. utility meter measures – energy

88. watt-hour meter measures – energy

89. VU meter is never used to measure – energy

90. Which is true for dc electromagnet – has constant polarity

91. Webber - ______ effect

92. Wilson Effect –

Complete List of Section 2 Modules in Electronics (Q&A)


Post a Comment

Contact Form

Name

Email *

Message *

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