IndiaBIX

Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 15
11.
Some multiplexing arrangements for telephone system are
  1. Space multiplexing
  2. Time division multiplexing
  3. Frequency division multiplexing
Which of the above allow transmission of many independent signals over a single channel?
1 only
2 and 3 only
1, 2, 3
1 and 3 only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Industrial noise has the frequency range of
1 to 100 Hz
200 to 5000 Hz
above 200 MHz
1 to 600 MHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Thermal noise Power is
proportional to bandwidth (B)
∝ B
∝B2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
The characteristic impedance of coaxial cable is about
1000 ohm
500 ohm
250 ohm
75 ohm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The diameter and thickness of CD are
6 cm and 1.2 mm
6 cm and 0.6 mm
12 cm and 0.6 mm
12 cm and 1.2 mm
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers