Explore topic-wise MCQs in Satellite Communication.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Satellite Communication knowledge and support exam preparation. Choose a topic below to get started.

1.

Mark out the WRONG statement.
As compared to FDMA, the demand assignment system TDMA
A. Needs very high-speed burst modems
B. Faces no problems caused by intermodulation of carriers so that transponder can be used at its full power
C. Needs high-speed manipulation of bit streams
D. Is less flexible so that channels of widely different capacities cannot used and intermixed
Answer» E.
Discussion
2.

Point out the false statement.
Launching of geostationary experimental communication satellite has helped India to gain experience in
A. Building, for the time, a body-stabilized geosynchronous communication satellite with its own apogee propulsion and control systems
B. Attitude control and station management operations for a geostationary satellite
C. Building launching rocket Ariane for putting APPLE in orbit
D. Domestic communications on an experimental basis
Answer» D. Domestic communications on an experimental basis
Discussion
3.

Which of the following statement regarding link loss for a satellite is wrong?
A. For fixed antenna, it is inversely proportional to
B. 2
C. For fixed frequency, it is inversely proportional to the product of the antenna aperture areas
D. For a given satellite operating at a given frequency, it is inversely proportional to
E. Loss in down-link is negligible as compared to that in uplink
Answer» E. Loss in down-link is negligible as compared to that in uplink
Discussion
4.

The INTELSAT-IV satellite launched in 1974 had two earth coverage antenna and two narrower-angle antennas subtending 4.5 . The signal from narrow-angle antenna was stronger than that from earth- coverage antenna by a factor of
A. 17.34/4.5
B. 17.34 x 4.5
C. (17.34/4.5)2
D. (17.34/4.5)4
Answer» D. (17.34/4.5)4
Discussion
5.

The present total cost per watt of power generation in geosynchronous orbit is nearly Rs
A. 20
B. 50
C. 100
D. 5
Answer» B. 50
Discussion
6.

Power received from Sun per m2 surface area of a geosynchronous satellite in nearly __________ watt.
A. 100
B. 500
C. 2000
D. 1000
Answer» E.
Discussion
7.

While keeping the down-link frequency constant, the diameter of a satellite antenna is reduced by half. To offer the same EIRP over the increased coverage area, the RF output power has to be increases by a factor of
A. 2
B. 4
C. 8
D. 16
Answer» C. 8
Discussion