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Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 13
31.
TV receivers use flyback switched mode power supply because
it can supply many voltage outputs
it does not require a filter choke and is cheap
it has very good regulation at all loads
both (a) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
SSB stands for
Single Side Band
Suppressed Side Band
Single Sound Band
Single Sky Band
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.

Assertion (A): In SSB, carrier is suppressed by about 45 dB

Reason (R): SSB is standard form for radio communication

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
For a parallel two wire line with both conductors touching each other, the characteristic impedance is about
300 Ω
200 Ω
80 Ω
24 Ω
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
Tape recorders use
cone type loudspeakers
horn type loudspeakers
either cone type or horn type loudspeakers
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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