Electrical Engineering Questions and Answers for Competitive Exams Pdf - 1

Question: 1

The transient currents are associated with the a. changes in the stored energy in the inductors and capacitors

(A) resistance of the circuit

(B) applied voltage to the circuit

(C) impedance of the circuit

(D) changes in the stored energy in the inductors and capacitors

Ans: D

changes in the stored energy in the inductors and capacitors

Question: 2

Time constant of an inductive circuit

(A) increases and decrease of inductance and increase of resistance

(B) increases with the decreases of inductance and decrease of resistance

(C) increases with the increase of inductance and the increase of resistance

(D) increases with increase of inductance and decrease of resistance

Ans: D

increases with increase of inductance and decrease of resistance

Question: 3

The negative maximum of a cosine wave occurs at

(A) 30°

(B) 45°

(C) 90°

(D) 180°

Ans: D

180°

Question: 4

The ratio of active power to apparent power is known as _____ factor.

(A) form

(B) power

(C) load

(D) demand

Ans: B

power

Question: 5

In a highly capacitive circuit the

(A) actual power is more than its reactive power

(B) reactive power is more than the actual power

(C) reactive power is more than the apparent power

(D) apparent power is equal to the actual power

Ans: B

reactive power is more than the actual power

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