IndiaBIX

Electronics and Communication Engineering - Communication Systems

Exercise : Communication Systems - Section 13
1.
A receiver has poor selectivity. It will also have poor
sensitivity
double spotting
blocking
diversity reception
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The depth of modulation is doubled in FM system then, the power transmitted
increase by factor of 2
increase by factor of 3
increase by factor of 2
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
Ground wave can be used for communication upto
5 kHz
12 kHz
16 kHz
25 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
A Marconi antenna
is a grounded antenna with a length equal to λ/4
is an ungrounded antenna with a length equal to λ/4
has a length equal to 1
has a length equal to λ/2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
When large amount of power is required, a push pull amplifier is designed for operation as
class A
class B
class C
class AB
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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