Electric Cables Mcqs

This set of Electrical engineering Multiple Choice Questions & Answers (MCQs) focuses on study of “Electric Cables”. These questions are chosen from a collection of most authoritative and best reference books on Electrical engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Electric Cables Mcqs comprehensively.

1.
Which of the following insulation is used in cables ?

Varnished cambric

Rubber

Paper

Any of the above

2.
The thickness of the layer of insulation on the conductor, in cables, depends upon___________?

Reactive power

Power factor

Voltage

Current carrying capacity

3.
The insulating material for a cable should have__________?

Low cost

High dielectric strength

High mechanical strength

All of the above

4.
Which of the following protects a cable against mechanical injury___________?

Bedding

Sheath

Armouring

None of the above

5.
Empire tape is__________?

Varnished cambric

Vulcanised rubber

Impregnated paper

None of the above

6.
In a cable immediately above metallic sheath ______ is provided

Earthing connection

Bedding

Armouring

None of the above

7.
The bedding on a cable consists of____________?

Hessian cloth

Jute

Any of the above

None of the above

8.
cables are used for 132 kV lines____________?

High tension

Super tension

Extra high tension

Extra super voltage

9.
The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to__________?

Absence of harmonics

Non-existence of any stability limit

Smaller dielectric loss

Absence of ripples

10.
The insulating material for cables should____________?

Be acid proof

Be non-inflammable

Be non-hygroscopic

Have all above properties

11.
In single core cables armouring is not done to________?

Avoid excessive sheath losses

Make it flexible

Either of the above

None of the above

12.
In case of three core flexible cable the colour of the neutral is_________?

Blue

Black

Brown

None of the above

13.
In a cable, the maximum stress under operating conditions is at___________?

Insulation layer

Sheath

Armour

Conductor surface

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