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Wires, Joints - Soldering - U.G. Cables
13

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

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

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

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

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

16) Which method of cable laying is suitable for congested areas?

Racks in air

Duct pipes

Along buildings

Direct in ground

Answer is:

Duct pipes

17) Which part of the underground cable is protecting the metallic sheath against corrosion?

Serving

Bedding

Armouring

Lead sheath

Answer is:

Bedding

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

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