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

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

26) 7/1.40 is the specification of the one stranded conductor. What does the denominator indicate in the above specification ?

Answer is:

Diameter of the conductor in mm

27) The material that have only few electrons and are incapable of flowing current is

Answer is:

porcelain

28) Which one of the following materials is the insulating material ?

Answer is:

Mica

29) Which of the following material is NOT a good insulator ?

Answer is:

Copper

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

Answer is:

Zinc

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