Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

At = /2, positive portion is __________ negative portion in power cycle.

A. greater than
B. less than
C. equal to
D. greater than or equal to
Answer» D. greater than or equal to
2.

The average value of power if =0 is?

A. V<sub>m</sub>I<sub>m</sub>/2
B. V<sub>m</sub>I<sub>m</sub>/2
C. V<sub>m</sub>I<sub>m</sub>/4
D. V<sub>m</sub>I<sub>m</sub>/8
Answer» C. V<sub>m</sub>I<sub>m</sub>/4
3.

In P (t) equation, if =0, then P (t) =?

A. (V<sub>m</sub>I<sub>m</sub>/2)(1+cos u2061 t)
B. (V<sub>m</sub>I<sub>m</sub>/2)(cos u2061 t)
C. (V<sub>m</sub>I<sub>m</sub>/2)(cos u20612 t)
D. (V<sub>m</sub>I<sub>m</sub>)(1+cos u20612 t)
Answer» E.
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