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Wireman
COMMERCIAL WIRING 2
Set 5
Set 5
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Q13675
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Which is to be considered to select the size of ECC for earthing to service meter?
A
Supply voltage from supplier side
B
Type of wiring installation done in the system
C
Current carrying capacity of installation
D
Type of wiring material used
Q13676
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Which material is used to prepare heating element?
A
Copper
B
Aluminium
C
Nichrome
D
Silver
Q13677
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Which material, the heater plate is made of?
A
Porcelain
B
Ceramic
C
Ebonite
D
Bakelite
Q13678
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Where the heating element is placed in an immersion type heater?
A
Near the outer seating
B
Inside a hollow tube
C
Out side the body
D
Below the body
Q13679
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Why the grooves are designed with projection in heater plate?
A
For the uniform distribution of heat
B
To prevent the heating element from coming out of grooves
C
To reduce the space for coiled heating element
D
To increase the resistance of the heating element
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