IndiaBIX

Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 19
21.
Each of the following equation expressing decibel gain is correct except
db gain = 20 log10 V/R1/V/R2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
The satellites used for intercontinental communication are called
Comsat
Domsat
Marisat
Intelsat
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Armoured submarine cable is used
to prevent insulation breakdown due to high voltage
to protect cable at great depths.
to prevent inadverent damage due to ploughing in
for the shallow shore ends of cable.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
The frequency deviation of a FM signal produced from PM is
identical to that of FM signal produced by direct method
larger than that of a FM signal produced by direct method
directly proportional to the peak amplitude and the frequency of modulating signal
directly proportional to the peak amplitude of the modulating signal
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Good frequency stability can be available
crystal oscillators
Hartley oscillators
colpitts oscillators
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers