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Microwave Communication

Microwave Communication
Which causes multipath or frequency selective fading?

Large reflector
Small reflector
Nearer reflector
Further reflector

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Microwave Communication
A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is

10,000 watts
100 watts
1,000,000 watts
1,000 watts

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Microwave Communication
A PPI cathode-ray tube as used on a radar set

Indicates only the range of a target
Is used to check the percentage of modulation
Is used for receiver alignment
Indicates both the range and azimuth of a target

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Microwave Communication
Microwave frequencies are normally regarded as those in the range of

10 to 1000 GHz
1 to 500 MHz
1000 to 10,000 GHz
1 to 100 GHz

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Microwave Communication
A traveling-wave tube (TWT) amplifies by virtue of

The absorption of energy by the signal from an electron stream
The energy liberated form the collector
The effect of an external magnetic field
The energy contained the cavity resonators

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Microwave Communication
Coupling into and out of a traveling-wave tube can be accompanied by a

Waveguide match
Cavity match
All of these
Direct coax-helix match

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MORE MCQ ON Microwave Communication

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