Below are the answers key for the Multiple Choice Questions in Antennas Part 3.
101. increases sensitivity to weak signals
102. one-quarter wavelength
103. By installing a good ground radial system
104. Efficiency = (radiation resistance / total resistance) x 100%
105. adding a capacitor in series and reducing the physical length
106. The location of the antenna with respect to nearby objects
107. Beamwidth
108. Directivity gain
109. vertical antennas
110. acts as antenna array
111. Log-periodic
112. Horn
113. Protection of personnel working underneath
114. To prevent re-radiation of the local oscillator
115. Marconi
116. protection of personnel working underneath
117. Adding C in series
118. vertically polarized
119. Long wire
120. Electromagnetic
121. Diplexer
122. Vertical
123. Horizontal
124. Dipole
125. Yagi
126. Class A
127. 120 radials
128. Parabolic reflector
129. Telemetry
130. Eslun transformer
131. 32.4 inches
132. Field strength meter
133. 35
134. Radiation resistance
135. 73 ohms
136. Isotropic radiator
137. Ground
138. Trap dipole
139. End effect
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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