Explore topic-wise MCQs in Avionics.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Avionics knowledge and support exam preparation. Choose a topic below to get started.

1.

What is harmonic sideband interference known as?

A. Sideband interference
B. Decay
C. Distortion
D. Splatter
Answer» E.
Discussion
2.

Which of the following is an example of CW transmission?

A. Sensor data transmission
B. Morse code transmission
C. Audio signal transmission
D. TV wave transmission
Answer» C. Audio signal transmission
Discussion
3.

Where is ASK used?

A. Binary data transmission
B. Analog data transmission
C. TV waves transmission
D. Audio signal transmission
Answer» B. Analog data transmission
Discussion
4.

Square waves are made up of numerous Fundamental sin waves.

A. True
B. False
Answer» B. False
Discussion
5.

SQUARE_WAVES_ARE_MADE_UP_OF_NUMEROUS_FUNDAMENTAL_SIN_WAVES.?$

A. True
B. False
Answer» B. False
Discussion
6.

Which of the following is an example of CW transmission?$

A. Sensor data transmission
B. Morse code transmission
C. Audio signal transmission
D. TV wave transmission
Answer» C. Audio signal transmission
Discussion
7.

Where_is_ASK_used?$

A. Binary data transmission
B. Analog data transmission
C. TV waves transmission
D. Audio signal transmission
Answer» B. Analog data transmission
Discussion
8.

What is the percent of modulation if the power in the side band is 5W and carrier power is 30W?

A. 0.81
B. 0.8
C. 0.4
D. 0.2
Answer» B. 0.8
Discussion
9.

What is the power in each sideband if the carrier power is 30W and percentage of modulation is 85%?

A. 8.55W
B. 5.418W
C. 7.542W
D. 1.235W
Answer» C. 7.542W
Discussion
10.

What is the total power if the carrier power is 30W and the percentage of modulation is 85%?

A. 70W
B. 40.8W
C. 51.6W
D. 20W
Answer» D. 20W
Discussion
11.

What_is_harmonic_sideband_interference_known_as?

A. Sideband interference
B. Decay
C. Distortion
D. Splatter
Answer» E.
Discussion
12.

If an AM signal is transmitted at a frequency of 990KHz and the and is allowed to transmit modulating frequencies up to 5KHz, What is the maximum upper sideband that is produced?

A. 995Khz
B. 985Khz
C. 4950Khz
D. 198KHz
Answer» B. 985Khz
Discussion
13.

What is the bandwidth of the signal if the highest frequency in the modulating signal is 3 KHz?

A. 6Khz
B. 3KHz
C. 5Khz
D. 140Khz
Answer» B. 3KHz
Discussion
14.

What is the bandwidth of the signal if the upper sideband frequency and the lower sideband frequency are 7350 KHz and 7210 KHz respectively?

A. 14,560KHz
B. 140KHz
C. 1500KHz
D. 800KHz
Answer» C. 1500KHz
Discussion
15.

What is the instrument that is used to represent the frequency domain of the signal?

A. Frequency indicator
B. Amplitude indicator
C. Spectrum analyzer
D. Oscilloscope
Answer» D. Oscilloscope
Discussion
16.

What is the maximum carrier frequency to be used if the upper limit frequency that is available is 4000Hz and the frequency of the modulating signal is 100Hz?

A. 4100Hz
B. 4000Hz
C. 400Hz
D. 3900Hz
Answer» E.
Discussion
17.

What is the upper sideband frequency if the carrier frequency and the modulating signal frequency is 30 KHz and 80 Hz respectively?

A. 3000Hz
B. 30.8KHz
C. 3080KHz
D. 30.8Hz
Answer» C. 3080KHz
Discussion
18.

What type of display will give us clear information on the signal if it is made up of different frequencies?

A. Frequency domain display
B. Amplitude domain display
C. Time domain display
D. Bandwidth display
Answer» B. Amplitude domain display
Discussion
19.

What is the wave of frequency that occurs at the sum and difference of the carrier and modulating signal is called?

A. Noise signals
B. Sideband
C. Extraband
D. Neutral band
Answer» C. Extraband
Discussion