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Fundamental HVAC

Total questions: 13

Worksheet time: 11mins

Name
Class
Date
1.

The accumulator, if equipped, is located between:

a)

the compressor and the fixed orifice tube

b)

the compressor and the expansion valve

c)

the evaporator and the compressor

d)

the condenser and the expansion valve

2.
In a typical system, within which component would the evaporation of refrigerant take place?
a)
Condenser
b)
Receiver dryer
c)
Evaporator
d)
Compressor
3.

Which component squeezes the gas?

a)

Compressor

b)

Condenser

c)

Evaporator

d)

Thermal Xpansion Valve

4.

Where does the low pressure liquid become a gas?

a)

Evaporator

b)

Condenser

c)

TX valve

d)

Compressor

5.

In what state is the refrigerant when it exits the condenser?

a)

High pressure gas

b)

Low pressure gas

c)

High pressure liquid

d)

Low pressure liquid

6.
The air conditioning compressor acts as the ________ of the system, keeping refrigerant circulating during air conditioning system operation.
a)
Top
b)
Bottom
c)
Pump
d)
brain
7.

as refrigerant moves through the condenser it goes from _____ to ________

a)

a Vapor to a Liquid

b)

a Liquid to a Vapor

c)

Low pressure Vapor to a low pressure vapor

d)

High pressure liquid to a low pressure liquid

8.
The amount of heat needed to raise the temperature of 1 pound of water 1 degree Fahrenheit (at sea level) 
a)
1 BTU
b)
convection
c)
Broil
d)
100 Kelvin
9.
____________ is the measurement of how hot or cold something feels.
a)
BTU
b)
freezing
c)
temperature
d)
comfort
10.
The __________is placed ahead of the radiator, allowing it to receive maximum air flow from vehicle movement and coolant fan operation. 
a)
condenser
b)
compressor
c)
evaporator
d)
orifice tube
11.

What is the purpose of the Capillary Tube in the refrigerant circuit?

a)

To remove moisture from the refrigerant

b)

To reduce air pressure in the cab & saloon

c)

To reduce pressure in the refrigerant

d)

To remove smells and contaminants in the cab & saloon

12.

What is the purpose of the Compressor in the refrigeration circuit?

a)

To compress the refrigerant into a hot excited pressurised state.

b)

To draw in low pressure refrigerant.

c)

To compress the refrigerant into a hot liquid state.

d)

To draw in high pressure refrigerant.

13.

What are the Temperature Set Points for the HVAC System?

a)

21°C Cooling & 24°C Heating

b)

24°C Cooling & 21°C Heating

c)

27°C Cooling & 14°C Heating

d)

14°C Heating & 27°C Cooling