Quiz Questions - THEORY TEST - 01-Jun-2026 11:42 AM

Question 1 1 Marks

Which component belongs to indoor unit of split AC?

A

Compressor

B

Condenser

C

Evaporator

D

Drier

Question 2 1 Marks

Which control opens the compressor motor circuit in the event of continuous overload?

A

Thermostat

B

Fusible plug

C

Bimetal strip

D

Spring loaded relief valve

Question 3 1 Marks

Which component belongs to outdoor unit of split AC?

A

Blower

B

Air filter

C

Compressor

D

Evaporator coil

Question 4 1 Marks

Which material is used to make ducts in split AC?

A

Thermocole

B

GI sheet

C

Wood

D

Fibre

Question 5 1 Marks

Which type of switch is used to control the room air temperature in split AC?

A

Over load protector

B

Thermostat switch

C

Manual switch

D

Thermal relay

Question 6 1 Marks

How many fan motors are used in split AC?

A

Two

B

Five

C

Four

D

Three

Question 7 1 Marks

Where the refrigerant is stored in split AC during pump down operation?

A

Accumulator

B

Compressor

C

Evaporator

D

Condenser

Question 8 1 Marks

Which horizontal distance is preferred between indoor and outdoor units in ductable split AC installation?

A

15 meters

B

12 meters

C

20 meters

D

25 meters

Question 9 1 Marks

Which process is done first in split AC for shifting from one place to another?

A

Flushing

B

Evacuation

C

Pump down

D

Vacuumisation

Question 10 1 Marks

What is the function of starting capacitor in CSIR motor?

A

Gives initial torque

B

Gives running torque

C

Corrects power factor

D

Improves energy efficiency

Question 11 1 Marks

What is the advantage of periodical cleaning of air filter?

A

Decrease the volume of air handling

B

Increase the speed of fan motor

C

Decrease the cooling capacity

D

Increase the cooling capacity

Question 12 1 Marks

What tonnage capacity of split AC unit uses 150/200 MFD starting capacitor?

A

1 TR

B

1.5 TR

C

2.0 TR

D

2.5 TR

Question 13 1 Marks

Which valve helps to attend mechanical faults without wasting the gas in split AC?

A

Gate valve

B

Float valve

C

Service valve

D

Expansion valve

Question 14 1 Marks

Which is the mounting location of evaporator in ductable split unit?

A

Floor mounting

B

Wall mounting

C

Ceiling mounting

D

Roof mounting

Question 15 1 Marks

What is the function of remote control in split AC?

A

Humidity setting

B

Pressure setting

C

Drain water control

D

Transmits signal to operate AC

Question 16 1 Marks

What is the cause for noisy fan motor in outdoor unit of split AC?

A

Bearing worn out

B

Motor Burnt

C

Shaft struck

D

Blade bent

Question 17 1 Marks

How the pressure drop of refrigerant flow is minimised during installation of indoor and outdoor units in ductable split AC?

A

Pipe lines with more joints

B

With more horizontal distance

C

System pipes with minimum bends

D

Install units as far as possible

Question 18 1 Marks

What is the reason for poor condensation in split AC?

A

High ambient temperature

B

Low ambient temperature

C

Condenser tube leaky

D

Blower motor failure

Question 19 1 Marks

What is the effect on defective thermostat sensor in split AC?

A

Unit consumes less power

B

Increases super heat

C

AC unit runs continuously

D

Relay malfunctions

Question 20 1 Marks

What is the reason for air conditioner running continuously but no cooling effect ?

A

Condensation poor

B

Refrigerant is more

C

Refrigerant leaked

D

Over charged oil

Question 21 1 Marks

How many speed selection is used with indoor air blower in ductable multi split AC?

A

One - speed

B

Two - speed

C

Three - speed

D

Four - speed

Question 22 1 Marks

What is the maximum TR capacity operated with Single phase AC supply?

A

1.00 TR

B

1.5 TR

C

2.0 TR

D

5 TR

Question 23 1 Marks

What is the cooling capacity for 1.5 Ton of ductable split air conditioner?

A

3500 Kcal/hr

B

4000 Kcal/hr

C

4500 Kcal/hr

D

5000 Kcal/hr

Question 24 1 Marks

What is the test pressure of cooling coils during manufacture?

A

150 psig

B

250 psig

C

350 psig

D

450 psig

Question 25 1 Marks

What is the advantage of inverter split AC?

A

Eliminates compressor

B

High energy efficiency

C

Low energy efficiency

D

Current drawn is high