Applications of VSB Online Exam Quiz
Applications of VSB GK Quiz. Question and Answers related to Applications of VSB. MCQ (Multiple Choice Questions with answers about Applications of VSB
How an AM radio station increase its signal-to-noise ratio?
Options
A : by increasing its modulation index
B : by decreasing its modulation index
C : by maintaining a constant modulation index
D : by increasing the frequency
If AM radio station increases its modulation index then there is an increase in receiving RF signal.
Options
A : TRUE
B : FALSE
C : -
D : -
Pulse Modulation can be used in automatic landing equipments.
Options
A : TRUE
B : FALSE
C : -
D : -
Signal to quantization noise ratio in PCM system depends on ___
Options
A : sampling rate
B : signal bandwidth
C : number of quantization levels
D : nature of carrier wave
What is the main problem in using quadrature amplitude modulation?
Options
A : high bandwidth is required
B : high power is required
C : incompability with ordinary AM radio waves
D : bandwidth required is less
What is the modulation index of an AM signal if the peak voltage goes from Emax to Emin?
Options
A : \frac{E_{min}}{E_{max}}E min E max
B : \frac{E_{max}}{E_{min}}
C : \frac{E_{max} ? E_{min}}{E_{max} + E_{min}}
D : \frac{E_{max} + E_{min}}{E_{max} ? E_{min}}
What is the total sideband power if there is 100% modulation?
Options
A : half the carrier wave
B : twice the carrier wave
C : equal to the carrier wave
D : one-fourth of the carrier wave
Which frequencies is produced if Va sin?(?a t) amplitude modulates the carrier Vc sin?(?c t)?
Options
A : (?c + ?a), (?c ? ?a) and ?c
B : (?c) and (?a)
C : (?c + ?a) and (2?c + 2?a)
D : (2?c) and (2?a)
Which of the following modulation is used in data communication?
Options
A : Pulse Modulation
B : Amplitude Modulation
C : Phase Modulation
D : Frequency Modulation
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