Domestic Appliance Multiple Choice Questions and Answers

Questions

1 Which of the following refrigerant is widely used in domestic refrigeration?

A ammonia

B alcohol

C oxygen

D neon

View Answer

Answer: ammonia.

2 In a refrigerator, the lowest temperature occur at

A evaporator

B expansion valve

C condenser

D compressor

View Answer

Answer: evaporator

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3 In refrigerator, at the inlet of capillary the refrigerant should be

A higher pressure liquid.

B high temperature liquid.

C low temperature liquid.

D low pressure liquid.

View Answer

Answer: higher pressure liquid.

4 Which type of magnet is used in an electric bell?

A Electromagnet

B Carbon magnet

C Temporary magnet

D Permanent magnet

View Answer

Answer: Electromagnet

5 Which of the following device is responsible for production of the cold liquid in a refrigerator?

A Throtting device

B Evaporator

C Compressor

D Condenser

View Answer

Answer: Throtting device

6 The heating element in an electric iron is wound around a sheet of

A Cotton

B Cardboard

C Mica

D None of the above

View Answer

Answer: Mica

7 The capacity an air conditioner is expressed in

A kWh

B tons

C watt

D None of the above

View Answer

Answer: tons

8 The capacity of a domestic refrigerator is expressed in

A tons

B watt-hours

C watt

D HP

View Answer

Answer: tons

9 Which of the following heating method is generally used in electric iron?

A Arc heating.

B Indirect resistance heating

C Dielectric heating

D Direct resistance heating

View Answer

Answer: Direct resistance heating

10 In a electric iron, the transfer of heat from coil to base plate is mainly through

A Convection

B Radiation

C Conduction

D None of the above

View Answer

Answer: Conduction

11 The heating element in an electric iron is usually made of

A Nichrome

B Platinum.

C Brass

D None of the above

View Answer

Answer: Nichrome

12 The heating element in an electric heater is made of

A Nichrome

B Platinum

C Aluminium

D Tungsten

View Answer

Answer: Nichrome

13 Which of the following material is used to made heating element of electric toaster?

A Nichrome

B Iron

C Tungsten

D None of the above

View Answer

Answer: Nichrome

14 The rating all electric iron is expressed in

A kWh

B kVA

C watt

D None of the above

View Answer

Answer: watt

15 Which part of washing machine actually perform the cleaning operation of cloth clothes?

A Agitator

B Timer

C Drain

D Tub

View Answer

Answer: Agitator

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