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Microwave Communication MCQ Questions & Answers | ECE

Learn Microwave Communication MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Microwave Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-8 section-1

Each section contains 100 MCQs on Microwave Communication .
71
Most dominant mode in a traveling wave magnetron is the one in which
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Answer: Option A
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72
In a microwave measurement setup, the power roughing to the load is found to be 50 mW. If a 3 dB coupler is placed before the load, the power to the load will be
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Answer: Option B
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73
In a parallel plate waveguide, what is the principal wave?
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Answer: Option A
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74
In cavity magnetron, strapping is used to
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Answer: Option A
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75
Consider the following statements about the maximum usable frequency for radio communication between two specified points by reflection from an ionosphere layer:
1. It is equal to the critical frequency
2. It is more than the critical frequency
3. It depends upon the distance between the two points
4. It depends upon the height of the ionosphere layer
Of these statements
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Answer: Option D
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76
What is the frequency range of VHF electromagnetic waves?
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Answer: Option C
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77
Avalanche Photodiodes are preferred over PIN diodes in optical communication systems because of
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Answer: Option D
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78
The field configuration in two different view of waves propagating in a rectangular waveguide, as shown in the given figure represents the mode
Microwave Communication mcq question image
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Answer: Option C
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79
Which of the following diode is very suitable for switching high frequency signals ON and OFF?
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Answer: Option C
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80
Which of the following is a cross-field device?
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Answer: Option C
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