INDUSTRIAL WIRING PRACTICE - Practice Mode

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

Red, yellow, black, green Red, blue, black, yellow Red, black, green, blue Red, yellow, blue, black

Correct Answer: Red, yellow, blue, black

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

Red and blue Red and black Red and green Red and yellow

Correct Answer: Red and black

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

L1, L2, L3 & N U, V, W & N R, Y, B & N A1,B1, C1 & N

Correct Answer: U, V, W & N

4) Which material is used for harnessing of cable?

Metal bands P.V.C sleeves Link clips P.V.C saddles

Correct Answer: Metal bands

5) How the cable size is determined for industrial wiring?

By considering the voltage of circuit By considering the load resistance By considering the current carrying capacity By considering the power factor

Correct Answer: By considering the current carrying capacity

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