Baseband Channel Online Exam Quiz
Baseband Channel GK Quiz. Question and Answers related to Baseband Channel. MCQ (Multiple Choice Questions with answers about Baseband Channel
A frequency synthesizer is ___
Options
A : A VCO phase locked to a reference frequency
B : A VFO phase locked to a reference frequency
C : A fixed RF generator
D : A variable RF generator
Calculate power in each sideband, if power of carrier wave is 176W and there is 60% modulation in amplitude modulated signal?
Options
A : 13.36W
B : 52W
C : 67W
D : 15.84W
For 100% modulation, power in each sideband is __ of that of carrier.
Options
A : 50%
B : 70%
C : 60%
D : 25%
Overmodulation results in __
Options
A : Distortion
B : Weakens signal
C : Strengthens the signal
D : provides immunity to noise
Signal to noise ratio is calculated as signal voltage divided by noise voltage.
Options
A : TRUE
B : FALSE
C : -
D : -
The maximum power efficiency of an AM modulator is?
Options
A : 25%
B : 33%
C : 66%
D : 100%
What you understand by the term Soliton?
Options
A : it is a defect in the glass
B : it is a type of particle
C : it is a type of pulse
D : it is a type of optical fibre
Which statement is true about varacter?
Options
A : it is a diode
B : it is a voltage-controlled oscillator
C : it is used in tuned circuits
D : it is a diode used in tuned circuit and also has a voltage-controlled capacitor
Why CSMA/CD network has a minimum length for packets?
Options
A : to increase the data rate
B : to decrease the data rate
C : to prevent packets from reaching all other nodes
D : to make sure that all other nodes hear a collision in progress
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