Analog Communications Mock Test 5

10%

Question 1 of 10

1. In higher power AM transmission, modulation is done at _________

RF power stage

Source stage

Oscillator stage

Transducer Stage

Question 1 of 10

Question 2 of 10

2. Skip distance depends on the time of day.

False

True

Question 2 of 10

Question 3 of 10

3. Pulse Modulation can be used in automatic landing equipments.

False

True

Question 3 of 10

Question 4 of 10

4. Which among the following is not an advantage of FM over AM?

low bandwidth is required

modulating power required is less

better noise immunity

better signal to noise ratio

Question 4 of 10

Question 5 of 10

5. Carson's rule is used to ________

calculate Figure of merit of FM signal

calculate Bandwidth of FM signal

calculate SNR of FM signal

determine the carrier frequency

Question 5 of 10

Question 6 of 10

6. Which of the following is not a part of analogue communication?

PWM

PPM

PCM

Question 6 of 10

Question 7 of 10

7. To avoid fading in communication, broad band antenna is used.

True

False

Question 7 of 10

Question 8 of 10

8. What is the expected modulation index in case of wide band FM?

less than 1

¹⁄₂

more than 1

Question 8 of 10

Question 9 of 10

9. In AM pilot carrier, transmission has ________

two side bands and a carrier

two side bands

carrier and part of one side band

carrier, one side band and part of other side band

Question 9 of 10

Question 10 of 10

10. Schmitt trigger is used to generate PDM.

True

False

Question 10 of 10