DOMESTIC APPLIANCES - Quiz

1) What is the purpose of protection grooves at various places in a heater base plate?

Radiate the heat properly Retain the heating element firmly Place the vessels firmly on heater plate Protect the heating element from damage

2) What is the purpose of sole plate in electric kettle?

Acts as a balancing weight Acts as an insulator for element Protect the kettle base from damage Keep the element in close contact with container

3) What is the magnetron tube filament voltage used in microwave oven?

1.5 V A.C 2.0 V A.C 3.0 V A.C 3.2 V A.C

4) What is the fault in a food mixer if it runs intermittently?

Worn out brushes Armature coil open Defective commutator Field winding partially short

5) What is the defect in a single phase pump motor if it runs with slow speed?

Defective capacitor Open starting winding Short in starting winding Short in running winding