Industrial Wiring Practice Set 6

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What is the colour code of 3 phase 4 wire AC supply system?

  

    (A) Red, yellow, black, green

    (B) Red, blue, black, yellow

    (C) Red, black, green, blue

    (D) Red, yellow, blue, black

Red, yellow, blue, black

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What is the colour code of single phase AC supply as per NE code?

  

    (A) Red and blue

    (B) Red and black

    (C) Red and green

    (D) Red and yellow

Red and black

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What is the alpha numeric notation of 3 phase apparatus connection?

  

    (A) L1, L2, L3 & N

    (B) U, V, W & N

    (C) R, Y, B & N

    (D) A1,B1, C1 & N

U, V, W & N

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Which material is used for harnessing of cable?

  

    (A) Metal bands

    (B) P.V.C sleeves

    (C) Link clips

    (D) P.V.C saddles

Metal bands

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How the cable size is determined for industrial wiring?

  

    (A) By considering the voltage of circuit

    (B) By considering the load resistance

    (C) By considering the current carrying capacity

    (D) By considering the power factor

By considering the current carrying capacity

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