HVAC EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
Technicians who repair or service A/C systems must be trained and certified on:
All of the choises are correct
What is the job of an orifice tube?
Control Refrigerant flow into the evaporator
Which of these is NOT a reason to replace a receiver-drier or accumulator-drier?
The vehicle is 5 years old
Under what principles do A/C systems operate?
Laws of thermondynamics
Technician A says the job of the cooling system is to remove heat that is
absorbed by the engine. Technician B says the job of the cooling system is to
warm up the engine quickly. Who is correct?
Both Technician A & B
How is a Hybrid A/C system different from conventional systems?
Its compressor is electric
The air delivery subsystem of the HVAC system does all of the following EXCEPT:
, Ionize the air
In an A/C system,the high side service port can be located in all of these EXCEPT:
Between the evaporator and compressor
Under Section 609 of the 1990 Clean Air Act, it is illegal to:
Vent refrigerant into the atmosphere
A ruptured desiccant bag in a receiver-drier, or accumulator-drier, is usually
caused by what?
Moisture contamination
Technician A says you must use approved equipment to service today's AC
systems. Technician B says recycled refrigerant is not as pure as reclaimed
refrigerant. Who is correct?
Both Technician A & B
Which components separate the high side from the low side in a refrigerant
system?
Compressor and restriction
In the United States, what agency has issued regulations regarding the sale and
service of refrigerants used in A/C systems?
EPA
COMPLETE SOLUTIONS
Technicians who repair or service A/C systems must be trained and certified on:
All of the choises are correct
What is the job of an orifice tube?
Control Refrigerant flow into the evaporator
Which of these is NOT a reason to replace a receiver-drier or accumulator-drier?
The vehicle is 5 years old
Under what principles do A/C systems operate?
Laws of thermondynamics
Technician A says the job of the cooling system is to remove heat that is
absorbed by the engine. Technician B says the job of the cooling system is to
warm up the engine quickly. Who is correct?
Both Technician A & B
How is a Hybrid A/C system different from conventional systems?
Its compressor is electric
The air delivery subsystem of the HVAC system does all of the following EXCEPT:
, Ionize the air
In an A/C system,the high side service port can be located in all of these EXCEPT:
Between the evaporator and compressor
Under Section 609 of the 1990 Clean Air Act, it is illegal to:
Vent refrigerant into the atmosphere
A ruptured desiccant bag in a receiver-drier, or accumulator-drier, is usually
caused by what?
Moisture contamination
Technician A says you must use approved equipment to service today's AC
systems. Technician B says recycled refrigerant is not as pure as reclaimed
refrigerant. Who is correct?
Both Technician A & B
Which components separate the high side from the low side in a refrigerant
system?
Compressor and restriction
In the United States, what agency has issued regulations regarding the sale and
service of refrigerants used in A/C systems?
EPA
