WorksheetsRAC Q3 11AER AER610
Total questions: 11
Worksheet time: 6mins
What is the main function of a compressor in a refrigeration system?
A) To remove heat from the evaporator
B) To increase the pressure and temperature of the refrigerant
C) To condense the refrigerant
D) To expand the refrigerant
Which of the following is not a type of compressor?
A) Reciprocating
B) Centrifugal
C) Rotary
D) Absorption
Which compressor type is commonly used in household refrigerators?
A) Screw compressor
B) Reciprocating compressor
C) Centrifugal compressor
D) Axial compressor
The main function of a condenser is to:
A) Compress the refrigerant
B) Release heat
by converting gas into liquid
C) Expand the refrigerant
D) Increase pressure
Which type of compressor uses a piston and cylinder arrangement?
a) Rotary screw compressor
b) Reciprocating compressor
c) Centrifugal compressor
d) Scroll compressor
In which compressor is air compressed by trapping it between rotating screws?
a) Reciprocating
b) Screw compressor
c) Scroll
d) Axial
Which of the following is not a type of condenser?
a) Air-cooled condenser
b) Water-cooled condenser
c) Evaporative condenser
d) Rotary condenser
Which type of condenser is commonly used in domestic refrigerators?
a) Water-cooled
b) Air-cooled
c) Evaporative
d) None of these
The main function of the evaporator is to:
a) Compress the refrigerant
b) Condense the refrigerant
c) Absorb heat and evaporate refrigerant
d) Increase refrigerant pressure
The refrigerant in the evaporator changes from:
a) Vapour to liquid
b) Liquid to vapour
c) Solid to vapour
d) Gas to solid
The expansion valve is used to:
a) Increase pressure
b) Reduce pressure and control refrigerant flow
c) Evaporate the refrigerant
d) Circulate air
