Microwave/Satellite Communication

Microwave/Satellite Communication

University

65 Qs

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Microwave/Satellite Communication

Microwave/Satellite Communication

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65 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


Microwave resonators are used in

microwave oscillators

microwave narrow band amplifier


microwave frequency metres


all of the above

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


In microwave system the function of mode filter is


to suppress modes with lower cut off frequencies


b. to suppress modes with higher cut off frequencies


to change mode of wave transmission

both (b) and (c)

c. to change mode of wave transmission

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


Atomic and molecular resonance is observed in many substances

at microwave frequencies

at low frequencies

at frequencies used in AM broadcast


at both (light blue) and (yellow)

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt


Microwave links are typically 50 km apart

because of atmospheric attenuation


because of output tube power limitation

because of earth's curvature

to ensure that applied dc voltage is not excessive

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Satellite communication systems use the frequency band

10 to 20 MHz


50 to 70 MHz

3 to 6 GHz

100 to 120 GHz

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The characteristic impedance of a cable is about

300 Ω

50 Ω


5 Ω

2 Ω

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

For a directional coupler the power is in the ratio of

40 dB

30 dB

20 dB


10 dB

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