These EXELIS Wireless Electronics multiple-choice questions and their answers will help you strengthen your grip on the subject of EXELIS Wireless Electronics. You can prepare for an upcoming exam or job interview with these 30 EXELIS Wireless Electronics MCQs.
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A. Class C
B. Class A
C. Class AB
D. Class BÂ
A. It requires only capacitors
B. It requires only inductors
C. It allows ripple in the passband in return for steeper skirts
D. It has maximally flat response over the passband
A. mixer
B. frequency discriminator
C. antenna
D. limiter
A. filter
B. radio frequency amplifier
C. beat frequency oscillator
D. product detector
A. Elliptical
B. Chebyshev
C. Cavity
D. Butterworth
A. It requires only inductors
B. It requires only capacitors
C. It has maximally flat response over its passband
D. None of the above
A. Common collector
B. Common base
C. Common mode
D. Common emitter
A. radio frequency amplifier
B. limiter
C. antenna
D. mixer
A. True
B. FalseÂ
A. Op-amp circuits are used as low-pass filters at the output of transmitters
B. Op-amp circuits are used as audio filters for receivers
C. Op-amp circuits are used as filters for smoothing power supply output
D. Op-amp circuits are used as high-pass filters to block RFI at the input of receivers
A. audio frequency amplifier
B. high frequency oscillator
C. intermediate frequency amplifier
D. radio frequency amplifier
A. frequency discriminator
B. intermediate frequency amplifier
C. speaker and/or headphones
D. high frequency oscillator
A. Exactly 180 degrees
B. More than 180 degrees, but less than 360 degrees
C. The entire cycle
D. Less than 180 degreesÂ
A. Difference amplifier
B. Operational amplifier
C. High gain audio amplifier
D. Summing amplifier
A. 400 watts
B. 100 watts
C. 1000 watts
D. 200 wattsÂ
A. 1250 watts
B. 625 watts
C. 2500 watts
D. 500 wattsÂ
A. Op-amps are more rugged and can withstand more abuse than the LC elements
B. Op-amps are fixed at one frequency
C. Op-amps exhibit gain rather than insertion loss
D. None of the aboveÂ
A. filter
B. limiter
C. frequency discriminator
D. radio frequency amplifier
A. variable frequency oscillator
B. radio frequency oscillator
C. linear amplifier
D. antenna
A. Increasing spurious radiation power from the transmitter.
B. Channel selection.
C. Increasing saturation of the front-end receiver.
D. All of the above.
A. Hartley, Colpitts, and Pierce
B. Audio, Radio, and Capacitive
C. High-pass, Low-pass, and Band-pass
D. Inductive, Capacitive, and ResistiveÂ
A. The input impedance is essentially determined by the resistance between the source and the substrate
B. The input impedance is essentially determined by the resistance between the source and the drain
C. The input impedance is essentially determined by the gate biasing network
D. The input impedance is essentially determined by the resistance between the drain and the substrate
A. When miniaturization and low-loss characteristics are in high demand.
B. When high-level of power handling is needed.
C. When miniaturization and low-loss characteristics are not required.
D. When high-level of power handling is not needed.
A. filter
B. variable frequency oscillator
C. speech amplifier
D. linear amplifier
A. speaker and/or headphones
B. mixer
C. radio frequency amplifier
D. beat frequency oscillator
A. antenna
B. balanced modulator
C. linear amplifier
D. mixer
A. Very low
B. Exactly 100 ohms
C. Exactly 1000 ohms
D. Very highÂ
A. two sideband frequencies
B. four sideband frequencies
C. one sideband frequency
D. infinite sideband frequencies
A. modulating frequency and modulation index
B. modulation index
C. modulating frequency
D. pass-band of the IF filter
A. antenna
B. filter
C. variable frequency oscillator
D. speech amplifier
A. 8 dB
B. 30 dB
C. 50 dB
D. 400 dBÂ
A. mixer
B. beat frequency oscillator
C. radio frequency amplifier
D. audio frequency amplifier
A. intermediate frequency amplifier
B. audio frequency amplifier
C. high frequency oscillator
D. radio frequency amplifier
A. 8 kHz
B. 5 kHz
C. 16 kHz
D. 3 kHzÂ
A. When the signals are reflected in phase by some aircraft passing overhead
B. When they are in close proximity and the signals cause feedback in one or both of their final amplifiers
C. When they are in close proximity and the signals mix in one or both of their final amplifiers
D. When the signals are reflected out of phase by some aircraft passing overhead
A. An operational amplifier circuit connected in such a way that the input and the output signals are 180 degrees out of phase
B. An operational amplifier circuit connected in such a way that the input and the output signals are in phase
C. An operational amplifier circuit connected in such a way that the input and the output signals are 90 degrees out of phase
D. An operational amplifier circuit connected in such a way that the input impedance is held to zero while the output impedance is high
A. An operational amplifier circuit connected in such a way that the input and the output signals are 90 degrees out of phase
B. An operational amplifier circuit connected in such a way that the input and the output signals are in phase
C. An operational amplifier circuit connected in such a way that the input impedance is held low and the output impedance is high
D. An operational amplifier circuit connected such that the input and the output signals are 180 degrees out of phase
A. 2120 watts
B. 1500 watts
C. 1060 watts
D. 530 wattsÂ