Avionics Communication Receivers Online Exam Quiz
Avionics Communication Receivers GK Quiz. Question and Answers related to Avionics Communication Receivers. MCQ (Multiple Choice Questions with answers about Avionics Communication Receivers
What circuit provides the initial selectivity in a receiver?
Options
A : Amplifier
B : Attenuator
C : Multiplexer
D : LC tuned circuits
What type of receivers converts all incoming frequency into a lower frequency for better selectivity and sensitivity?
Options
A : Analogous receivers
B : Superheterodyne receivers
C : Digital receiver
D : Crystal receiver
The LNA of a transducer has failed during the transmission of a signal. Which component’s failure has caused this?
Options
A : Duplexer
B : RF amplifier
C : Antenna
D : Mixer
The ability to pick up week signals by a receiver is called _________
Options
A : Gain
B : Amplification
C : Sensitivity
D : Selectivity
What type of oscillators are used to input a wide range of frequencies to the IF amplifier?
Options
A : LC oscillators
B : Crystal oscillators
C : Variable frequency oscillators
D : Diode oscillators
What is connected between the antenna and the mixer to avoid oscillator radiation?
Options
A : LNA
B : Attenuator
C : Duplexer
D : Power amplifier
Which of the following is not an advantage of using RF amplifiers in the initial stage of signal selection?
Options
A : Low noise
B : Reduced oscillator radiation
C : Better selectivity
D : Less power consumption
What is the input signal level that is approximately equal to the average internally generated noise value called?
Options
A : MDS
B : MBS
C : MMD
D : MSD
Which of the following are the two main characteristics of receivers?
Options
A : Selectivity and sensitivity
B : Gain and attenuation
C : Modulation and demodulation
D : Multiplexing and demultiplexing
Analog signals : Signal to noise ratio:: Digital signals _________
Options
A : Signal Attenuation
B : Bit error rate
C : Error rate
D : Digital noise ratio
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