Industrial Wiring Practice Set 5

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What is the minimum distance in front of the switch board for industrial pannel board wiring?

  

    (A) 2 M

    (B) 1-5 M

    (C) 1 M

    (D) 0.5 M

1 M

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What is the thickness of steel sheet using the covers of bus bar chamber?

  

    (A) 1 mm

    (B) 1.5 mm

    (C) 2 mm

    (D) 2.5 mm

1.5 mm

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Why the equipment are arranged in front side of the switch board in industrial wiring?

  

    (A) To avoid short circuit

    (B) To operate easily

    (C) To test the supply frequently

    (D) To avoid personnal contacts during maintenance

To avoid personnal contacts during maintenance

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What is the purpose of openings provided in bus bar chamber?

  

    (A) For cable entries

    (B) For air circulation

    (C) To release the heat

    (D) To extend the busbar

For cable entries

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Which material is used to make busbars?

  

    (A) Brass

    (B) Galvanised iron

    (C) Aluminium

    (D) Bronze

Aluminium

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