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All Electrical Engineering MCQs

Study 3,658 Electrical Engineering MCQs with correct answers and explanations.

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991Electrical EngineeringMedium

Equilizer rings are required in case armature is________?

Awave wound

Bduplex wound

Cdelta wound

Dlap wound

Correct answer

D. lap wound

Explanation

The correct answer is lap wound.

992Electrical EngineeringMedium

NAND gates are preferred over others because these________?

Aconsume least electronic power

Bhave lower fabrication area

Ccan be used to make any gate

Dprovide maximum density in a chip

Correct answer

C. can be used to make any gate

Explanation

The correct answer is can be used to make any gate.

993Electrical EngineeringMedium

The first order control system, which is well designed, has a________?

Asmall bandwidth

Bnone of the above

Clarge negative transfer function pole

Dnegative time constant

Correct answer

C. large negative transfer function pole

Explanation

The correct answer is large negative transfer function pole.

994Electrical EngineeringMedium

An over excited synchronous motor is used for________?

Afluctuating loads

Bpower factor corrections

Clow torque loads

Dvariable speed loads

Correct answer

B. power factor corrections

Explanation

The correct answer is power factor corrections.

995Electrical EngineeringMedium

After proper turn on of thyristor________?

Agate signal should present but can be removed

Bgate signal must be removed

Cnone of the above.

Dgate signal is always present

Correct answer

B. gate signal must be removed

Explanation

The correct answer is gate signal must be removed.

996Electrical EngineeringMedium

Aphasoris________?

Aan instrument used for measuring phases of an unbalanced 3-phase load

Ba coloured tag or band for distinction between different phases of a 3-phase supply

Ca line representing the magnitude and direction of an alternating quantity

Da line which represents the magnitude and phase of an alternating quantity

Correct answer

D. a line which represents the magnitude and phase of an alternating quantity

Explanation

The correct answer is a line which represents the magnitude and phase of an alternating quantity.

997Electrical EngineeringMedium

Low voltage at motor terminals is due to________?

Ainadequate motor wiring

Bany one of the above

Cnone of the above

Dpoorely regulated power supply

Correct answer

B. any one of the above

Explanation

The correct answer is any one of the above.

998Electrical EngineeringMedium

If a radio receiver amplifies all the signal frequencies equally well, it is said to have high ________?

ADistortion

BFidelity

CSelectivity

DSensitivity

Correct answer

B. Fidelity

Explanation

The correct answer is Fidelity.

999Electrical EngineeringMedium

The property of a material which opposes the creation of magnetic flux in it is known as________?

Amagnetomotive force

Breluctivity

Cpermeance

Dreluctance

Correct answer

D. reluctance

Explanation

The correct answer is reluctance.

1000Electrical EngineeringMedium

At series resonance, voltage across L is________voltage across C?

AEqual to but in phase with

BEqual to but opposite in phase to

CGreater than but in phase with

DLess than but in phase with

Correct answer

B. Equal to but opposite in phase to

Explanation

The correct answer is Equal to but opposite in phase to.

Aphasoris________?

Aan instrument used for measuring phases of an unbalanced 3-phase load

Ba coloured tag or band for distinction between different phases of a 3-phase supply

Ca line representing the magnitude and direction of an alternating quantity

Da line which represents the magnitude and phase of an alternating quantity

Correct answer

D. a line which represents the magnitude and phase of an alternating quantity

Explanation

The correct answer is a line which represents the magnitude and phase of an alternating quantity.