1) The power curve for a purely resistive circuit is zero only when
a. Current is zero
b. Voltage is zero
c. Both current and voltage is zero
d. None of these
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Answer
Explanation
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ANSWER: Both current and voltage is zero
Explanation:
No explanation is available for this question!
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2) For solving parallel ac circuit, the method used is
a. Vector method
b. Admittance method
c. Symbolic or j - method
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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3) The product of rms values of current and voltage is called as
a. Real power
b. Apparent power
c. Reactive power
d. Polar curves
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Answer
Explanation
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ANSWER: Apparent power
Explanation:
No explanation is available for this question!
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4) The power absorbed by a pure inductive circuit and pure capacitive circuit is
a. Zero and non zero
b. Non zero and zero
c. Non zero and non zero
d. Zero and zero
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Answer
Explanation
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ANSWER: Zero and zero
Explanation:
No explanation is available for this question!
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5) The two alternating quantities could be added by constructing
a. Squares
b. Parallelograms
c. Rhombus
d. Trapeziums
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Answer
Explanation
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ANSWER: Parallelograms
Explanation:
No explanation is available for this question!
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6) Root mean square value of current is equal to
a. 1.414 times the maximum value
b. 1.732 times the maximum value
c. Twice the maximum value
d. 0.707 times the maximum value
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Answer
Explanation
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ANSWER: 0.707 times the maximum value
Explanation:
No explanation is available for this question!
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7) The net power in a series R-C circuit is
a. Zero
b. Positive
c. Negative
d. None of these
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Answer
Explanation
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ANSWER: Positive
Explanation:
No explanation is available for this question!
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8) The ratio of maximum value to effective value of an alternating quantity is called
a. Crest factor
b. Peak factor
c. Amplitude factor
d. All of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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9) The amplitude or peak value or maximum value of an alternating voltage is given by the coefficient of the
a. Sine of the time angle
b. Cosine of the time angle
c. Tangent of the time angle
d. Cotangent of the time angle
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Answer
Explanation
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ANSWER: Sine of the time angle
Explanation:
No explanation is available for this question!
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10) Alternating voltage can be generated by
a. By rotating a coil in a magnetic field
b. By rotating a magnetic field within a stationary coil
c. Either (a) or (b)
d. Neither (a) or (b)
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Answer
Explanation
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ANSWER: Either (a) or (b)
Explanation:
No explanation is available for this question!
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