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Electrician
Electrician Set-2
Wires, Joints - Soldering - U.G. Cables
11

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

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

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

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

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

13) Which type of soldering flux is used for soldering aluminium conductors?

Tallow

Ker-al-lite

Zinc chloride

Sal ammonia rosin

Answer is:

Ker-al-lite

14) What is the effect on molten solder due to repeated melting?

Tin content reduced

Lead content reduced

Prevent slug formation

Uneven flowing in joints

Answer is:

Tin content reduced

15) What will happen to PVC insulation in cable carries excess current continuously for long period?

Voltage drop increases

Voltage drop decreases

Insulation resistance increases

Insulation resistance decreases

Answer is:

Insulation resistance decreases

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