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Wireman
COMMERCIAL WIRING 2
Set 6
Set 6
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Q13680
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Which metal is used to make contact points of thermostat?
A
Copper
B
Silver
C
Aluminium
D
Brass
Q13681
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What is the property of heating element used in electrical heating appliances?
A
Low co efficient of expansion
B
Low specific resistance
C
Low mechanical strength
D
Low voltage withstanding
Q13682
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Which is the permissible voltage drop in declared voltage supply to HT consumer as per IE rule?
A
Not more than 5%
B
Not more than 8%
C
Not more than 10%
D
Not more than 12%
Q13683
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Which wiring system is suitable for high rise buildings?
A
Looping out from switches
B
Distribution system
C
Ring main system
D
Tree system
Q13684
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Which type of distribution is suitable for commercial wiring of multistoried flats?
A
Looping out with junction
B
Looping out with swit
C
Bus chamber
D
Raising mains
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