WIRING JOINTS AND SOLDERING - Practice Mode

1) What does7 indicates in 7/20 cable?

Insulation gr Diameter in mm No of conductor Size of conductor in gauge

Correct Answer: No of conductor

2) Which insulating material is used for insulation tapes?

Mica Fibre Plastic Leathroid

Correct Answer: Plastic

3) What is the purpose of additional covering over the insulation of insulated conductor?

To increase dielectric strength To add more mechanical strength To increase the current carrying capacity To protect the wire

Correct Answer: To add more mechanical strength

4) Which joint is suitable for low current circuits only?

Double cross tap joint Western union joint Scarfed joint Aerial tap joint

Correct Answer: Aerial tap joint

5) Which type of tap joint is suitable for more tensile stress?

Plain tap joint Aerial tap joint Knotted tap joint Duplex cross joint

Correct Answer: Knotted tap joint

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