MCQ in Modulation Part 3 – Answers

(Last Updated On: April 15, 2020)

MCQ in Modulation Part 3 | ECE Board Exam

Below are the answers key for the Multiple Choice Questions in Modulation Part 3.

101. Bandwidth

102. H3E

103. Continuous modulation

104. Pulse modulation

105. Coefficient of modulation

106. Carrier shift

107. The oscillator is crystal-controlled

108. Frequency translation

109. Balanced modulator

110. Both B and C

111. 30.8 MHz

112. 0.6 radian

113. Nonlinear

114. Push-push

115. Frequency synthesizer

116. 4

117. Balanced modulator

118. Indirect

119. All of these

120. The change of the crystal oscillator frequency by loading

121. Indirect FM

122. AFC

123. Both A and B

124. TRF

125. Weak antenna signals

126. Bandwidth variations over the tuning range

127. Modulator

128. R–F amplifier

129. Mixer

130. Frequency translation

131. Internal noise

132. Reduction of receiver internal noise

133. Smaller

134. Noise figure

135. 120.1 MHz

136. 88.5 MHz

137. The image rejection ratio

138. Powdered iron

139. Skirt steepness

140. AGC

141. Squelch

142. Noise blanker

143. SBB voice

144. The audio voice information

145. An increase of the oscillator frequency

146. The noise floor of the receiver

147. Open circuit in the AGC’s filter capacitor

148. Cross-modulation interference

149. Limits the amplitude of the IF signal to the required level

150. Connecting a capacitor between the B+ and lead ground

Questions and Answers in Modulation Series

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

MCQ in Modulation
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
PART 6: MCQ from Number 251 – 300                 Answer key: PART 6
PART 7: MCQ from Number 301 – 350                 Answer key: PART 7
PART 8: MCQ from Number 351 – 400                 Answer key: PART 8
PART 9: MCQ from Number 401 – 450                 Answer key: PART 9
PART 10: MCQ from Number 451 – 500                 Answer key: PART 10

Complete List of MCQ in Communications Engineering per topic

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