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Electrician
Electrician Set-1
Electrical Appliances
39

Electrical Appliances MCQ - Electrician (Set-1) with Answers

39) The space between the outer casing and the inner tank of storage water heater is fitted with the heat insulation materials is

asbestos

glass

mica

rubber

Answer is:

glass

Electrical Appliances MCQ - Electrician (Set-1) with Answers

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Related Electrical Appliances MCQ - Electrician (Set-1) with Answers

40) Glass wool is provided in between the outer casing and inner container in storage water heater is to

reduce the water leakage

reduce the heat loss

increase the life of water heater

limit the load current

Answer is:

reduce the heat loss

41) What should be the value of resistance between the contacts of a new thermostat at the lowest temperature setting of the control knob in heater ?

In kilo ohms

Zero ohm or few ohms

Infinity

High resistance in mega ohms

Answer is:

Zero ohm or few ohms

42) You have to repair a geyser, which does not provide hot water. What can be the possible cause ?

Thermostat contacts are welded together

Thermostat does not disconnect the heater from the supply

Open in the thermostat contacts

Thermostat set too high or out of calibration

Answer is:

Open in the thermostat contacts

43) In the geyser, the following fault is occurred i.e. the fuse is blowing repeatedly. What will be the main reason for the above fault ?

Leakage around the thermostat

Thermostat setting is too low

Leakage around heating unit flange

Grounded heating element

Answer is:

Grounded heating element

Electrical Appliances MCQ - Electrician (Set-1) with Answers

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