Radar Systems MCQ’s

Electronics & Communication Engineering RF & Microwave Circuit Design

This set of RF & Microwave Circuit Design Multiple Choice Questions & Answers (MCQs) focuses on “Radar Systems”.

1. For radar system, antennas with a large beam width are preferred over narrow beam antennas.
a) True
b) False

2. The radar in which both transmission and reception is done using the same antenna are called:
a) Monostatic radar
b) Bistatic radar
c) Monopole radar
d) Dipole radar

3. In a RADAR system the transmitter of the radar is more sensitive than the receiver.
a) True
b) False

4. For applications like missile fire control, bistatic radars are used.
a) True
b) False

5. The term radar cross section defines the:
a) Scattering ability of the target
b) Power radiating ability of the radar
c) Amount of energy scattered by unwanted objects
d) Cross section of radar area through which energy is emitted

6. Construction of pulse radar is much simpler than a Doppler radar.
a) True
b) False

7. When a power Pt is transmitted by an antenna, amount of energy incident on the target is given by the expression:
a) Pt×G/4πR2
b) Pt/4πR2
c) Pt×4 πR2/G
d) None of the mentioned

8. A ________ determines the target range by measuring the round trip time of a pulsed microwave signal.
a) Pulse radar
b) Doppler radar
c) Cross section radar
d) None of the mentioned

9. In military applications the radar cross sections of vehicles is minimized.
a) True
b) False

10. Pulse radar operating at 10GHz frequency has an antenna with a gain of 28 dB and a transmitted power of 2kW. If it is desired to detect a target of cross section 12m2, and the minimum detectable signal is -90 dBm, the maximum range of the radar is:
a) 8114 m
b) 2348 m
c) 1256 m
d) 4563 m

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