Understanding Automotive AC Systems
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11th Grade
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component in an automotive AC system is responsible for compressing the refrigerant?
Condenser
Evaporator
Compressor
Expansion valve
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the evaporator in an AC system?
To compress the refrigerant
To cool the air by absorbing heat
To release heat to the outside
To regulate refrigerant flow
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a significant environmental concern associated with R-134a?
Ozone depletion
Global warming potential
Acid rain
Water pollution
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical pressure range for R-134a in the high-pressure side of an automotive AC system?
10-20 psi
30-40 psi
150-250 psi
300-400 psi
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component in the AC system is responsible for removing moisture and contaminants from the refrigerant?
Compressor
Condenser
Receiver-drier
Evaporator
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the expansion valve in an automotive AC system?
To increase refrigerant pressure
To decrease refrigerant pressure
To circulate refrigerant
To filter refrigerant
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the phase change of R-134a in the evaporator?
Liquid to gas
Gas to liquid
Solid to liquid
Liquid to solid
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