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Electrician
Electrician Set-1
Conductors and Insulation
30

Conductors and Insulation MCQ - Electrician (Set-1) with Answers

30) Which one of the following is NOT an insulator ?

Zinc

Glass

Rubber

Plastic

Answer is:

Zinc

Conductors and Insulation MCQ - Electrician (Set-1) with Answers

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Related Conductors and Insulation MCQ - Electrician (Set-1) with Answers

31) Which is not a property of an insulator

High heat conductivity

High permittivity

High dielectric strength

High mechanical strength

Answer is:

High permittivity

32) What is the insulating material used for heater base ?

Asbestos

Mica

Porcelain

Bakelite

Answer is:

Porcelain

33) Insulating materials are classified according to their withstanding temperature. Which class of material can withstand temperature up to 225 Degree C ?

Y - Class

A - Class

B - Class

C - Class

Answer is:

C - Class

34) Which insulating material is having high dielectric strength ?

Porcelain

Fibre

Mica

Glass

Answer is:

Mica

Conductors and Insulation MCQ - Electrician (Set-1) with Answers

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