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Wireman
WIRING JOINTS AND SOLDERING
Set 3
Set 3
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Q14271
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What does7 indicates in 7/20 cable?
A
Insulation gr
B
Diameter in mm
C
No of conductor
D
Size of conductor in gauge
Q14272
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Which insulating material is used for insulation tapes?
A
Mica
B
Fibre
C
Plastic
D
Leathroid
Q14273
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What is the purpose of additional covering over the insulation of insulated conductor?
A
To increase dielectric strength
B
To add more mechanical strength
C
To increase the current carrying capacity
D
To protect the wire
Q14274
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Which joint is suitable for low current circuits only?
A
Double cross tap joint
B
Western union joint
C
Scarfed joint
D
Aerial tap joint
Q14275
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Which type of tap joint is suitable for more tensile stress?
A
Plain tap joint
B
Aerial tap joint
C
Knotted tap joint
D
Duplex cross joint
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