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Electrician
Electrician Set-2
Wires, Joints - Soldering - U.G. Cables
8

Wires, Joints - Soldering - U.G. Cables MCQ with Answers

8) How many electrons are there in the valence shell of a copper atom?

1

2

8

18

Answer is:

1

Explanation:

18 electrons are there in the third shell of copper atom.

How many electrons are there in the valence shell of a copper atom?

Wires, Joints - Soldering - U.G. Cables MCQ with Answers

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Related Wires, Joints - Soldering - U.G. Cables MCQ with Answers

9) What is the effect of electric current on neon lamp?

Heating effect

Magnetic effect

Chemical effect

Gas ionization effect

Answer is:

Gas ionization effect

10) What is the unit of insulation resistance?

Ohm

Kilo ohm

Milli ohm

Mega ohm

Answer is:

Mega ohm

11) Which electrical device is the coarse excess current protection?

Cartridge fuses

Rewirable fuses

Miniature Circuit Breaker (MCB)

High Rupturing Capacity (HRC) Fuses

Answer is:

Rewirable fuses

12) Which type of joint is used for extending the length of conductor in over head lines?

Scarfed joint

Aerial tap joint

Britannia T joint

Western Union joint

Answer is:

Western Union joint

Wires, Joints - Soldering - U.G. Cables MCQ with Answers

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