Exercise: Communication Systems

Questions for: Communication Systems

A photo diode converts light signals to binary.
A:
True
B:
False
C:
D:
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The modulation index of an AM wave is measured using a CRO. The waveform is as shown in figure, the modulation index is nearly
A:
43%
B:
30%
C:
23%
D:
17%
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
In AM receiver the oscillator frequency is
A:
always equal to signal frequency
B:
always equal to 455 kHz
C:
always higher than signal frequency
D:
always lower than signal frequency
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Household taperecorders generally use
A:
crystal microphone
B:
moving coil microphone
C:
condenser microphone
D:
cardioid microphone
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Pulse stuffing is used in
A:
synchronous TDM
B:
asynchronous TDM
C:
Any TDM
D:
All
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz