Module-2 Electrical Appliances (2nd)

 

19 : Which material is used for heating coil of electric heater?

A : Copper
B : Nichrome
C : Silver
D : Brass

20 : What is the part marked as X?
A : Bowl reflector
B : Heating element
C : Insulator
D : Switch

21 : How many number of pins are in the chord wire of automatic electric iron?
A : 1
B : 2
C : 3
D : 4

22 : Which is the additional part used in automatic iron compared to non automatic iron?
A : Heal plate
B : Pressure plate
C : Chord wire
D : Thermostat

23 : What is the function of thermostat in automatic electric iron?
A : To control the temperature
B : To transfer heat
C : To fix the element
D : To hold electric iron

24 : What is the range of speed in a food mixer?
A : 300-600rpm
B : 550-900rpm
C : 1000-2000rpm
D : 3000-14000rpm

25 : What is the minimum value of insulation resistance of chord wire in a food mixer?
A : 1 mega ohm
B : 500 ohm
C : 100 mega ohm
D : 1 ohm

26 : What is the function of rotary switch in food mixer?
A : Over load protection
B : To reverse rotation
C : Over current Protection
D : Speed selection

27 : How many windings are in a ceiling fan?
A : 4
B : 3
C : 2
D : 1

28 : Which type of bearing is used in table fan?
A : Sleeve bearings
B : Ball bearings
C : Roller bearings
D : Needle bearings

29 : Which type of motor is used in ceiling fan?
A : Permanent capacitor motor
B : Capacitor start induction run motor
C : Universal motor
D : Repulsion motor

30 : Which washing machine, water is propelled up wards?
A : Agitator wash
B : Pulsator wash
C : Air power wash
D : Chaos punch wash

31 : Which type of washing machine is fitted with concave shaped disc?
A : Air wash
B : Agitator wash
C : Pulsator wash
D : Chaos punch wash

32 : Which electrical effect gang type electric bell works?
A : Heating effect
B : Magnetic effect
C : Chemical effect
D : X ray effect

33 : Which device is used in annunciator panel?
A : Buzzer
B : LED
C : Hooter
D : Loud speaker