Avionics Assessment Online Exam Quiz
Avionics Assessment GK Quiz. Question and Answers related to Avionics Assessment. MCQ (Multiple Choice Questions with answers about Avionics Assessment
What is the signal to noise ratio if the maximum allowable frequency deviation is 4kHz and the frequency deviation by noise is 156.42Hz?
Options
A : 0.0364
B : 0.0391
C : 25.75
D : 20.45
What is the noise to signal ratio if the phase shift introduced by noise is 0.75°?
Options
A : 0.5
B : 0.966
C : 0.25
D : 1.75
What is the ratio of the shift produced by the noise to the maximum allowed deviation if the modulating frequency is 300Hz and the phase shift by noise is 25° and the maximum allowable deviation is 5kHz?
Options
A : 1.3
B : 0.530
C : 0.153
D : 0.0261
Which of the following pairs of resistors and capacitors can be used in high pass filters for preemphasis circuits?
Options
A : 100? and 0.075?F
B : 100? and 0.75?F
C : 150? and 0.75?F
D : 16? and 0.75?F
Find the frequency at which the signal enhancement flattens out in preemphasis circuit if R1=50? ,R2=70? and C=0.45?F.
Options
A : 12126.09Hz
B : 550Hz
C : 10036..52Hz
D : 9004.56Hz
What is the frequency deviation produced by noise if the modulating frequency is 400Hz and the phase difference introduced by noise is 0.43rad?
Options
A : 124Hz
B : 163Hz
C : 172Hz
D : 200Hz
Calculate the phase difference by noise if the Signal to noise ratio is 7:2.
Options
A : 15.366°
B : 17.5°
C : 13.65°
D : 8.21°
What is the frequency deviation produced by noise if the signal to noise ratio is 3:1 and modulating frequency is 800Hz?
Options
A : 152.32Hz
B : 482.5Hz
C : 132.8Hz
D : 271.Hz
Which circuit in FM receivers cancels or filters out noise?
Options
A : Filter circuits
B : Anti-noise circuits
C : Limiter circuits
D : delimiter circuits
What is the technique in which the high frequency components are amplified more than the low frequency components in FM?
Options
A : Garble
B : Preemphasis
C : Detoriation
D : Selective amplification
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