Explore topic-wise MCQs in Avionics.

This section includes 10 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 the device that converts the balanced line to an unbalanced line called?

A. Unbalancer
B. Balancer
C. Balun
D. Equalizer
Answer» D. Equalizer
Discussion
2.

Coaxial cables are ________ lines?

A. Balanced
B. Unbalanced
C. LAN
D. Parallel wire
Answer» C. LAN
Discussion
3.

What is it called when the noise is present in the transmission line but gets canceled at the receiver?

A. Cancellation mode
B. Common mode cancellation
C. Common mode rejection
D. Rectification
Answer» D. Rectification
Discussion
4.

In a balanced line, noise is present in the transmission line but cancels at the receiver.

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

What is the phase difference between the current flowing in the two wires of a balanced line?

A. 100°
B. 180°
C. 150°
D. 90°
Answer» C. 150°
Discussion
6.

What is the type of transmission line in which neither wire is connected to the ground?

A. Unbalanced line
B. Twisted pair cable
C. LAN lines
D. Balanced line
Answer» E.
Discussion
7.

For what purpose was twisted pair cable first used?

A. AM
B. Telephone
C. Wi-Fi
D. Digital data transmission
Answer» C. Wi-Fi
Discussion
8.

What is used as a surrounding for the solid center core in a coaxial cable?

A. Plastic dielectric
B. Ceramic
C. Metal
D. Wood
Answer» B. Ceramic
Discussion
9.

What is used between the two lead wires of a parallel transmission line?

A. Plastic
B. Ceramic
C. Metal
D. Wood
Answer» B. Ceramic
Discussion
10.

Which of the following is not a requirement of transmission lines?

A. Minimum attenuation of signal
B. Should not radiate signal
C. High power signal
D. Less noise
Answer» D. Less noise
Discussion