Quiz Questions - Monthly Test

Question 1 1 Marks

Which wire of servo motor connected to power supply?

A

White

B

Yellow

C

Black

D

Red

Question 2 1 Marks

What is the function of magnetic clutch in air conditioning system?

A

Cool the hot refrigerant

B

Connect and disconnect drive to compressor

C

Absorbs moisture in the system

D

Control the refrigerant flow to evaporator

Question 3 1 Marks

Which part of air conditioning system remove heat from air and transfer to the refrigerant?

A

Evaporator

B

Condenser

C

Receiver

D

Blower

Question 4 1 Marks

What is the function of condenser?

A

Control the refrigerant flow

B

Absorbs moisture in the system

C

Cool the hot refrigerant

D

Convert refrigerant to vapour

Question 5 1 Marks

Which type of flow mode is selected if outside is dusty and contaminated in car AC system?

A

Recirculation mode

B

Fresh mode

C

Heating mode

D

Defroster mode

Question 6 1 Marks

Which sensor causes off the outside air inlet or other odours?

A

Infrared sensor

B

Smog sensor

C

Sunload sensor

D

Temperature sensor

Question 7 1 Marks

What is the boiling point of refrigerant R-134a?

A

20.5 Degree Centigrade

B

22.0 Degree Centigrade

C

26.5 Degree Centigrade

D

27.8 Degree Centigrade

Question 8 1 Marks

Which sensor measures the actual body temperature of passengers?

A

Smog sensor

B

Sun load sensor

C

Infrared sensor

D

Interior temperature sensor

Question 9 1 Marks

What is the function ambient temperature sensor in the air conditioning system?

A

Monitor air temperature inside vehicle

B

Monitor air temperature outside vehicle

C

Monitor air temperature in driver cabin

D

Monitor air temperature at the exhaust

Question 10 1 Marks

What is the advantage of using servo motor in air conditioning system?

A

High speed operation possible

B

Suitable for precision control of rotation

C

Low cost of maintenance

D

Suitable to prevent vibration

Question 11 1 Marks

How much DC supply voltage required for servo motor?

A

4 V to 8 V

B

4.8 V to 6 V

C

3.5 V to 8 V

D

5V to 7.5 V

Question 12 1 Marks

Which part of air conditioning system absorbs moisture in the system?

A

Expansion valve

B

Receiver

C

Condenser

D

Evaporator

Question 13 1 Marks

What should be the high air flow rate permitted while doing performance checking in automobile AC system?

A

4 kg per min

B

6 kg per min

C

8 kg per min

D

10 kg per min

Question 14 1 Marks

Which is not the part of servo motor assembly?

A

Gear reduction unit

B

Normal DC motor

C

Position sensor

D

Expansion valve

Question 15 1 Marks

Where the ambient temperature sensor is located in the vehicle?

A

Behind the grill

B

Rear side of engine

C

Front axle

D

Top of servo motor

Question 16 1 Marks

Which device acts as an evaporator temperature sensing switch?

A

Thermostatic switch

B

Blower switch

C

Heater switch

D

Defroster switch