Explore topic-wise MCQs in Analog Communications.

This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Analog Communications knowledge and support exam preparation. Choose a topic below to get started.

1.

For removing unwanted signals we should use ________

A. mixing method
B. filter method
C. modulation method
D. detecting method
Answer» C. modulation method
Discussion
2.

Push pull amplifier is a class B amplifier.

A. True
B. False
Answer» B. False
Discussion
3.

Find the carrier frequency if the inductance and capacitance are 30μH and 10nF respectively?

A. 244KHz
B. 523KHz
C. 290KHZ
D. 300KHz
Answer» D. 300KHz
Discussion
4.

Carrier frequency is given by the formula ________

A. \(\frac{1}{2 \pi \sqrt{LC}}\)
B. \(\frac{1}{2 \pi \sqrt{L}}\)
C. \(\frac{1}{2 \pi \sqrt{C}}\)
D. \(\frac{1}{\pi \sqrt{LC}}\)
Answer» B. \(\frac{1}{2 \pi \sqrt{L}}\)
Discussion
5.

Aspect ratio is the ratio of ________

A. width to height
B. height to width
C. power to width
D. width to power
Answer» B. height to width
Discussion
6.

For_removing_unwanted_signals_we_should_use_________$

A. mixing method
B. filter method
C. modulation method
D. detecting method
Answer» C. modulation method
Discussion
7.

What is number of possible outputs if there is 6 line digital input?

A. 64
B. 32
C. 16
D. 128
Answer» B. 32
Discussion
8.

Helical antenna is used to obtain ________ polarization.

A. elliptical
B. circular
C. linear
D. perpendicular
Answer» C. linear
Discussion
9.

Among all amplifiers, Common Collector has highest power gain.

A. True
B. False
Answer» C.
Discussion
10.

If the levels in PCM are transmitted in 10 unit code having sampling frequency equals to 20KHz. What is its bandwidth?

A. 150KHz
B. 125KHz
C. 100KHz
D. 110KHz
Answer» D. 110KHz
Discussion
11.

A 1000KHz carrier is modulated by 100Hz and 200Hz waves, then which of the following frequencies cannot be present at the output?

A. 1000.1KHz
B. 999.9KHz
C. 1000.2KHz
D. 999.7KHz
Answer» E.
Discussion