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Waveguides MCQ Questions And Answers - Electromagnetic Theory

Waveguides MCQs : This section focuses on the "Waveguides" in Electromagnetic Theory. These Multiple Choice Questions (MCQs) should be practiced to improve the Electromagnetic Theory skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Which waveguides are used at higher radio frequencies?

A. Conductor
B. Dielectric
C. Both A and B
D. None of the above

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Question 2

Waves propagate in all directions in open space as spherical waves.

C. Can be true or false
D. Can not say

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Question 3

GWT stands for?

A. good wave testing
B. group wave testing
C. geometrical wave testing
D. guided wave testing

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Question 4

The first structure for guiding waves was proposed by J. J. Thomson in ?

A. 1885
B. 1888
C. 1893
D. 1899

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Question 5

Example of an optical waveguide is ?

A. microwave oven
B. optical fiber
C. radar
D. parabolic dishes

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Question 6

The phenomenon employed in the waveguide operation is

A. Reflection
B. Refraction
C. Total internal reflection
D. Adsorption

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Question 7

The waveguide is employed in the transmission lines, when operated at the range of

A. Hz
B. KHz
C. MHz
D. GHz

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Question 8

The dominant mode in waveguide is the mode which has

A. Highest frequency
B. Highest wavelength
C. Lowest phase constant
D. Highest attenuation

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Question 9

The cut off frequency for a waveguide to operate is

A. 3 MHz
B. 6 MHz
C. 3 GHz
D. 6 GHz

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Question 10

Waveguides are used for transferring both power and communication signals.

C. Can be true or false
D. Can not say

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