ASE S7 - School Bus Air Conditioning Systems and Controls Refrigerant Practice Questions
The free ASE S7 - School Bus Air Conditioning Systems and Controls questions that deal with refrigerant, with answers and explanations. The full bank and the timed practice test cover every topic the exam asks about.
Question #2
Which component is primarily responsible for removing heat from the refrigerant in an A/C system?
Correct answer: B
Explanation
The condenser removes heat from the refrigerant, cooling it down before it cycles back into the evaporator.
Question #4
What might be a common symptom of low refrigerant levels in a bus air conditioning system?
Correct answer: C
Explanation
Low refrigerant levels often lead to insufficient cooling, as there is not enough refrigerant to absorb heat.
Question #6
What type of refrigerant is commonly used in modern school bus air conditioning systems?
Correct answer: D
Explanation
R-134a is commonly used in modern A/C systems as it is more environmentally friendly than older refrigerants like R-12.
Question #9
Which part of the A/C system is vital for changing gas refrigerant back to a liquid state?
Correct answer: B
Explanation
The condenser is responsible for cooling and changing the gas refrigerant back to a liquid state.
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