MCQ in Communications Engineering Part 3 – Answers

Below are the answers key for the Miscellaneous Multiple Choice Questions in Communications Engineering Part 3.

101. Directional coupler

102. Klystron

103. 14.67 meters

104. Fading

105. Zepp antenna

106. Direct wave

107. HF

108. Free space loss

109. Hot standby

110. Liquid laser

111. Antenna reciprocity

112. 39.8 dBi

113. 93%

114. Between half-power points

115. Radio signals reflecting off the ground

116. All of the above

117. The number of lobes increases

118. Active antenna

119. Omnidirectional

120. Directivity

121. Parasitic antenna

122. Yagi antenna

123. Collinear antenna

124. Broadside antenna

125. Maximum power will take place

126. A balun

127. 4 m

128. 49.22 km

129. TE2,0

130. Isolator

131. Shroud

132. Is greater than in free space

133. 0 deg latitude

134. G/T

135. The distance between the satellite and ground station is changing, causing the Doppler effect.

136. Teledesic

137. Gain increases by 9.54 dB, beamwidth decreases to 1.3 of its former value.

138. 384 Mm

139. 39000 km

140. 14 GHz

141. 1

142. 6.02×10^8 m/s

143. Maximum usable frequency

144. Virtual height

145. 35,786 kilometers

146. Perigee

147. 7.61 km/s

148. Footprint

149. Azimuth and elevation

150. ITU-R S.1001-2

The Series

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

Complete List of MCQs in Communications Engineering per topic

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