Electrical Engineering Multiple Choice Online Exam Questions 2023
Electrical Engineering Question No. 1. The primary winding of a 220/6 V, 50 Hz transformer is energized from 110 V, 60 Hz supply. The secondary output voltage will be
(A) 3.6 V.
(B) 2.5 V.
(C) 3.0 V.
(D) 6.0 V.
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Ans: C
Electrical Engineering Question No. 2. The emf induced in the primary of a transformer
(A) is in phase with the flux.
(B) lags behind the flux by 90 degree.
(C) leads the flux by 90 degree.
(D) is in phase opposition to that of flux.
Ans: C
Electrical Engineering Question No. 3. The current from the stator of an alternator is taken out to the external load circuit through
(A) slip rings.
(B) commutator segments.
(C) solid connections.
(D) carbon brushes.
Ans: C
Electrical Engineering Question No. 4 . The ‘sheath’ is used in cable to
(A) provide strength to the cable.
(B) provide proper insulation.
(C) prevent the moisture from entering the cable.
(D) avoid chances of rust on strands.
Ans: A
Electrical Engineering Question No. 5. A 4 pole lap wound dc shunt motor rotates at the speed of 1500 rpm, has a flux of 0.4
mWb and the total number of conductors are 1000. What is the value of emf?
(A) 100 Volts.
(B) 0.1 Volts.
(C) 1 Volts.
(D) 10 Volts.
Ans: D