IndiaBIX

Electronics and Communication Engineering - Microwave Communication

Exercise : Microwave Communication - Section 7
21.
Which mode is called dominant mode in rectangular wave guide?
TE01
TE11
TE10
TE20
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
In a TWT the loss in attenuator is
almost equal to forward gain of tube
much less than forward gain of tube
much higher than forward gain of tube
almost infinite
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
To study electromagnetic radiations from astronomical objects, radio astronomers use
low frequencies
medium frequencies
microwaves
either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Radar reciever has high sensitivity and low noise figure
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
For a waveguide, which of the following statements is wrong?
It is usually made of brass or aluminium
It is usually rectangular or circular in shape
The dielectric region is usually air
The wall thickness is very small as compared to skin depth
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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