MCQ in Antennas Part 2 – Answers

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

51. the base of the antenna

52. inductance in series

53. Dummy

54. 158 watts

55. 16

56. By connecting an inductor in series with the antenna

57. A vertical antenna which is a quarter-wavelength long

58. its resonant frequency will be increased

59. 2.0 A

60. must have a vertical receiving antenna for the best reception

61. has a zero DC resistance to ground

62. both B and C

63. decrease

64. The antenna’s resonant frequency will increase

65. The field strength varies inversely as the distance from the antenna

66. both A and B

67. a bidirectional radiation pattern in the horizontal plane

68. vertical quarter-wavelength rod

69. 60 centimeters

70. doubled

71. sky wave propagation

72. isotropic antenna

73. quarter wavelength

74. Resonant

75. Broadside array

76. a sphere

77. a hypothetical, omnidirectional antenna

78. All of these

79. improved radiation efficiency

80. At the feed point

81. Isotropic radiator

82. 6546 kHz

83. in the horizontal direction

84. add an inductor series

85. a more omnidirectional reception

86. The element fed by the transmission line

87. The frequency range over which an antenna can be expected to operate satisfactorily

88. coil

89. 3.9 dB

90. ½ wavelength

91. It is increased

92. add a capacitor in series

93. wave traps in the antenna circuitry

94. when comparing the gains of directional antennas

95. It will radiate harmonics

96. 300 Ω

97. Antenna resonant frequency increases

98. At the ends

99. Near the center of the vertical radiator

100. increase the antenna’s power gain

Questions and Answers in Antennas Series

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

Complete List of MCQ in Communications Engineering per topic

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