Basic Radars – Exercise – 1

Basic Radars » Exercise – 1

1. Radar is :

(a) a mechanical device
(b) an electromagnetic device
(c) a pneumatic device
(d) an electrical device

Answer
Answer : (b) [su_spoiler title=’
Explanation
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2. Duplexer isolates :

(a) transmitter while transmitting
(b) receiver while receiving
(c) receiver while transmitting
(d) display unit

Answer
Answer : (c)
Explanation
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3. Receiver power depends on :

(a) medium losses
(b) medium, transmitter and polarization losses
(c) transmitter losses
(d) polarization losses

Answer
Answer : (b)
Explanation
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4. Duplexer is called :

(a) a switch
(b) coupler
(c) TR switch
(d) amplifier

Answer
Answer : (c)
Explanation
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5. In search radars :

(a) the beam is scanned continuously
(b) the beam is not scanned continuously
(c) angular position cannot better
(d) three antennas must be used

Answer
Answer : (a)
Explanation
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