MCQ in Noise Part 2 – Answers

(Last Updated On: April 23, 2020)

MCQ in Noise Part 2 | ECE Board Exam

Below are the answers key for the Multiple Choice Questions in Noise Part 2.

51. 32

52. 15

53. 75

54. -90 dBm

55. B and C above

56. positive

57. -85 dBm

58. -90 dBm

59. -85 dBm

60. above 30 MHz

61. Atmospheric noise

62. Distant stars are another source of man-made noise

63. Sun

64. A random voltage across the resistor does not exist

65. unchanged

66. Impulse noise voltage is dependent on bandwidth

67. 4.0 µV

68. 2,518 Ω

69. 0.5 mV

70. 875 Ω

71. Input noise voltage

72. an unwanted form of energy tending to interfere with the proper and easy reception and reproduction of wanted signals

73. 39.4

74. 30.3

75. 174 K

76. Thermal agitation

77. Thermal agitation

78. narrowing the bandwidth

79. microvolts

80. Mixer

81. 1.6 dB


83. 5.5 µV

84. Transit-time noise

85. 11 years

86. All of the above

87. Quantizing noise

88. Impulse noise

89. Crosstalk

90. All of these

91. Miscellaneous noise

92. Psophometer

93. Cosmic noise

94. Solar noise

95. Noise density

96. Increase channel bandwidth

97. Lightning

98. Space noise

99. Thunderstorms


Questions and Answers in Noise Series

Following is the list of multiple choice questions in this brand new series:

MCQ in Noise
PART 1: MCQ from Number 1 – 50                        Answer key: PART 1
PART 2: MCQ from Number 51 – 100                   Answer key: PART 2
PART 3: MCQ from Number 101 – 150                 Answer key: PART 3
PART 4: MCQ from Number 151 – 200                 Answer key: PART 4
PART 5: MCQ from Number 201 – 250                 Answer key: PART 5

Complete List of MCQ in Communications Engineering per topic

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