Electrical Cables MCQ Questions & Answers

1

The bedding on a cable consists of

A) Hessian cloth B) Jute C) Any of the above D) None of the above

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Answer & Solution

Answer: Option C

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2

The insulating material for a cable should have

A) Low cost B) High dielectric strength C) High mechanical strength D) All of the above

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Answer & Solution

Answer: Option D

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3

Underground cables are laid at sufficient depth

A) To minimize temperature stresses B) To avoid being unearthed easily due to removal of soil C) To minimize the effect of shocks and vibrations due to gassing vehicles, etc. D) For all of the above reasons

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Answer & Solution

Answer: Option C

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4

In capacitance grading a homogeneous dielectric is used.

A) Yes B) No

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Answer & Solution

Answer: Option B

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5

Dielectric strength of rubber is around

A) 5 kV/mm B) 15 kV/mm C) 30 kV/mm D) 200 kV/mm

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Answer & Solution

Answer: Option C

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6

The material for armouring on cable is usually

A) Steel tape B) Galvanized steel wire C) Any of the above D) None of the above

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Answer & Solution

Answer: Option C

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7

In the cables, sheaths are used to

A) Prevent the moisture from entering the cable B) Provide enough strength C) Provide proper insulation D) None of the above

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Answer & Solution

Answer: Option A

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8

In a cable immediately above metallic sheath ________ is provided.

A) Earthing connection B) Bedding C) Armouring D) None of the above

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Answer & Solution

Answer: Option B

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9

In capacitance grading of cables we use a _________ dielectric.

A) Composite B) Porous C) Homogeneous D) Hygroscopic

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Answer & Solution

Answer: Option A

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10

The insulating material for cables should

A) Be acid proof B) Be non-inflammable C) Be non-hygroscopic D) Have all above properties

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Answer & Solution

Answer: Option D

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Electrical Cables MCQ Questions & Answers | Electrical Engineering