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Quarter Wave Transformers MCQ Questions & Answers

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




Question 1

A quarter wave transformer is useful for matching any load impedance to a transmission line.

A. TRUE
B. FALSE

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Question 2

Complex load impedance can be converted to real load impedance by:

A. Scaling down the load impedance
B. By introducing an approximate length of transmission line between load and quarter wave transformer
C. Changing the operating wavelength
D. None of the mentioned

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Question 3

Converting complex load into real load for impedance matching has no effect on the bandwidth of the match.

A. TRUE
B. FALSE

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Question 4

If a load of 10Ω has to be matched to a transmission line of characteristic impedance of 50Ω, then the characteristic impedance of the matching section of the transmission line is:

A. 50Ω
B. 10Ω
C. 22.36Ω
D. 100Ω

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Question 5

If a narrow band impedance match is required, then more multi section transformers must be used.

A. TRUE
B. FALSE

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Question 6

If a single section quarter wave transformer is used for impedance matching at some frequency, then the length of the matching line is:

A. Is different at different frequencies
B. Is a constant
C. Is λ/2 for other frequencies
D. None of the mentioned

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Question 7

Major advantage of a quarter wave transformer is:

A. It gives proper matching
B. It gives high gain
C. Broader bandwidth
D. None of the mentioned

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Question 8

Quarter wave transformers cannot be used for non-TEM lines for impedance matching.

A. TRUE
B. FALSE

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Question 9

The major drawback of the quarter wave transformer that it cannot match complex load to a transmission line cannot be overcome.

A. TRUE
B. FALSE

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Question 10

The reactances associated with the transmission line due to discontinuities:

A. Can be ignored
B. Have to matched
C. Discontinuities do not exist
D. None of the mentioned

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