Avionics Amplitude Modulation Modulation Index Online Exam Quiz
Avionics Amplitude Modulation Modulation Index GK Quiz. Question and Answers related to Avionics Amplitude Modulation Modulation Index. MCQ (Multiple Choice Questions with answers about Avionics Amplitude Modulation Modulation Index
What is the modulation index value if Vmax=5.9v and Vmin=1.2v?
Options
A : 0.5
B : 0.662
C : 0.425
D : 0.14
What is the percentage of modulation if the modulating signal is of 7.5V and carrier is of 9V?
Options
A : 100
B : 91
C : 83.33
D : 0
What is the modulating signal voltage if the maximum and the minimum voltages on the wave was observed to be 5.9v and 1.2v respectively?
Options
A : 2.35v
B : 2.12v
C : 1.85v
D : 3.21v
Which of the following modulating signal voltage would cause over-modulation on a carrier voltage of 10v?
Options
A : 9.5
B : 9.99
C : 10
D : 12
The ratio between the modulating signal voltage and the carrier voltage is called?
Options
A : Amplitude modulation
B : Modulation frequency
C : Modulation index
D : Ratio of modulation
What happens when the amplitude of the modulating signal is greater than the amplitude of the carrier?
Options
A : Decay
B : Distortion
C : Amplification
D : Attenuation
When does over-modulation occur?
Options
A : Modulating signal voltage < Carrier voltage
B : Modulating signal voltage > Carrier voltage
C : Modulating signal voltage = Carrier voltage
D : Modulating signal voltage =0
What is the condition for greatest output power at the transmitter without distortion?
Options
A : Modulating signal voltage > Carrier voltage
B : Modulating signal voltage < Carrier voltage
C : Modulating signal voltage = Carrier voltage
D : Modulating signal voltage = 0
What is the circuit used for producing AM called?
Options
A : Modulator
B : Transmitter
C : Receiver
D : Duplexer
What is the line connecting the positive and negative peaks of the carrier waveform called?
Options
A : Peak line
B : Maximum amplitude ceiling
C : Modulation index
D : Envelope
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