WIRES JOINTS SOLDERING UG CABLES - Practice Mode

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

Cartridge fuses Rewirable fuses Miniature Circuit Breaker (MCB) High Rupturing Capacity (HRC) Fuses

Correct Answer: Rewirable fuses

2) 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

Correct Answer: Western Union joint

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

Tallow Ker-al-lite Zinc chloride Sal ammonia rosin

Correct Answer: Ker-al-lite

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

Tin content reduced Lead content reduced Prevent slug formation Uneven flowing in joints

Correct Answer: Tin content reduced

5) 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

Correct Answer: Insulation resistance decreases

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