Computer Programming MCQs

5739 MCQs  (Page 498 of 574)

Attempt Computer Programming MCQs Quiz
The purpose of RC or transformer coupling is to_____________?
A. Block a.c.
B. Separate bias of one stage from another
C. Increase thermal stability
NonE of the above
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A current amplification of 2000 is a gain of_________________?
A. 3 db
B. 66 db
C. 20 db
D. 200 db
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RC coupling is generally confined to low power applications because of____________?
A. Large value of coupling capacitor
B. Low efficiency
C. Large number of components
D. None of the above
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The value of emitter capacitor CE in a multistage amplifier is about____________?
A. 1 μf
B. 100 pf
C. 0.01 μf
D. 50 μf
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The gain of an amplifier is expressed in db because_____________?
A. It is a simple unit
B. Calculations become easy
C. Human ear response is logarithmic
D. None of the above
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An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
A. 8 db
B. 6 db
C. 5 db
D. 4 db
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1 db corresponds to_____________change in power level?
A. 50%
B. 35%
C. 26%
D. 22%
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The frequency response of transformer coupling is___________?
A. Good
B. Very good
C. Excellent
D. Poor
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The ear is not sensitive to___________?
A. Frequency distortion
B. Amplitude distortion
C. Frequency as well as amplitude distortion
NonE of the above
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The lower and upper cut off frequencies are also called_____________frequencies?
A. Sideband
B. Resonant
C. Half-resonant
D. Half-power
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Word of the Day
17 Jul
Flagrant
(of an action considered wrong or immoral) conspicuously or obviously offensive.
انتہائی برا، قابل مذمت، فاش

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