COMMERCIAL WIRING 2 - Quiz

1) Which is to be considered to select the size of ECC for earthing to service meter?

Supply voltage from supplier side Type of wiring installation done in the system Current carrying capacity of installation Type of wiring material used

2) Which material is used to prepare heating element?

Copper Aluminium Nichrome Silver

3) Which material, the heater plate is made of?

Porcelain Ceramic Ebonite Bakelite

4) Where the heating element is placed in an immersion type heater?

Near the outer seating Inside a hollow tube Out side the body Below the body

5) Why the grooves are designed with projection in heater plate?

For the uniform distribution of heat To prevent the heating element from coming out of grooves To reduce the space for coiled heating element To increase the resistance of the heating element