Pulse Modulation MCQ’s

Read Time:1 Minute, 38 Second

This set of Avionics Multiple Choice Questions & Answers (MCQs) focuses on “Pulse Modulation”.

1. Which of the following is false with respect to pulse modulation?
a) Less power consumption
b) Low noise
c) Degraded signal can be regenerated
d) Can transmit analog as well as digital waves

2. Which of the following is not a form of pulse modulation?
a) Pulse amplitude modulation
b) Pulse width modulation
c) Pulse position modulation
d) Pulse frequency modulation

3. The process of using a pulse signal to represent information is called _______
a) Pulse modulation
b) Frequency modulation
c) Amplitude modulation
d) Phase modulation

4. How many voltage levels are present in a PWM signal?
a) 0
b) 1
c) 2
d) 3

5. Which pulse modulation technique is least expensive?
a) Pulse amplitude modulation
b) Pulse width modulation
c) Pulse position modulation
d) Pulse code modulation

6. Pulse modulation is not used in which of the following?
a) Telemetry systems
b) Remote control models
c) Switch power modes
d) Communication of airplane with ATC

7. Power consumption is low in pulse modulation.
a) True
b) False

8. Which of the following is false with respect to pulse position modulation?
a) Can be transmitted in broadband
b) Modulates a high frequency carrier
c) Pulse is narrow
d) Pulse width changes in accordance with the amplitude of modulating signal

9. The process of signal compression and expansion used to reduce distortion and noise is called _____
a) Amplification
b) Companding
c) Compressing
d) Modulating

10. What is the output voltage if the input voltage of a compander with a maximum voltage range of 1 V and a μ of 255 is 0.25?
a) 0V
b) 0.25V
c) 0.5V
d) 0.75V

11. What type of digital modulation is widely used for digital data transmission?
a) Pulse amplitude modulation
b) Pulse width modulation
c) Pulse position modulation
d) Pulse code modulation

12. What is the output voltage if the input voltage of a compander with a maximum voltage range of 1 V and a μ of 255 is 0.8V0?
a) 0.08V
b) 0.458V
c) 1.02V
d) 1.54V

Happy
Happy
0 %
Sad
Sad
0 %
Excited
Excited
0 %
Sleepy
Sleepy
0 %
Angry
Angry
0 %
Surprise
Surprise
0 %

Average Rating

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous post Data Conversion – 3 MCQ’s
Next post Digital Signal Processing MCQ’s