Computer Programming MCQs

5739 MCQs  (Page 242 of 574)

Attempt Computer Programming MCQs Quiz
Double tuned circuits are used in ____________ stages of a radio receiver?
A. If
B. Audio
C. Output
D. None of the above
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Tuned class C amplifiers are used for RF signals of________________?
A. Low power
B. High power
C. Very high power
D. None of the above
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For frequencies below resonant frequency, a series LC circuit behaves as a _____________ load?
A. Resistive
B. Capacitive
C. Inductive
D. None of the above
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The Q of a tuned amplifier is generally _________________?
A. Less than 5
B. Less than 10
C. More than 10
D. None of the above
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When SCR starts conducting, then _____________ loses all control?
A. Gate
B. Cathode
C. Anode
D. None of the above
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An SCR can exercise control over____________of a.c. supply?
A. Positive half-cycles only
B. Negative half-cycles only
C. Both positive and negative half-cycles
D. Positive or negative half-cycles
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If firing angle in an SCR circuit is increased, the output _____________?
A. Remains the same
B. Is increased
C. Is decreased
D. None of the above
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We can control a.c. power in a load by connecting ______________?
A. Two scrs in series
B. Two scrs in parallel
C. Two scrs in parallel opposition
D. None of the above
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When SCR is OFF, the current in the circuit is ________________?
A. Exactly zero
B. Small leakage current
C. Large leakage current
D. None of the above
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In an SCR circuit, the angle of conduction can be changed by__________________?
A. Changing anode voltage
B. Changing gate voltage
C. Reverse biasing the gate
D. None of the above
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Word of the Day
23 Jul
Aisle
a passage between rows of seats in a building such as a church or theatre, an aircraft, or train.
طویل تنگ راستہ، نشتوں کے درمیان راستہ

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