HVAC ONLINE QUIZZES QUESTIONS AND ANSWERS
Two technicians are discussing AC service. Technician A says each person who
performs repairs for consideration involving A/C refrigerant must be trained and
certified. Technician B says each piece of equipment that is used to service motor
vehicle air conditioners must be approved and certified? Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Two technicians are discussing storing refrigerant. Technician A says R12 is stored in a
sky blue container. Technician B says R134a is stored in a sky blue container. Who is
correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Technician B only.
Two technicians are discussing refrigerant service. Technician A says recovery is the
process of pulling a vacuum on a system to remove moisture. Technician B says if R-
134a is not recovered it will boil, and evaporate into the atmosphere if a system is
opened to the atmosphere with refrigerant in it. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Technician B only.
Technician A says latent heat of evaporation is a liquid changing to a vapor. Technician
B says latent heat of condensation is a liquid changing to a vapor. Who is correct?
, Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Tecnician A only.
Technician A says heat transfer is always hot to cold. Technician B says high pressure
always flows to low pressure. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Technician A says heat quantity is measured in British Thermal Units or Calories.
Technician B says heat quantity is what we feel. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Tecnician A only.
nor B. - Answers- Technician A only.
Two technicians are discussing AC service procedures. Technician A says identifying
refrigerant is necessary on all vehicles that require recovery of refrigerant. Technician B
says failure to identify before recovery could cause cross contamination of refrigerant.
Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Technician A says that heat transfer is always cold to hot. Technician B says in order to
remove heat BTU's from the cabin, heat must be transferred from the cabin air to boil off
the liquid refrigerant in the evaporator. Who is correct?
Two technicians are discussing AC service. Technician A says each person who
performs repairs for consideration involving A/C refrigerant must be trained and
certified. Technician B says each piece of equipment that is used to service motor
vehicle air conditioners must be approved and certified? Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Two technicians are discussing storing refrigerant. Technician A says R12 is stored in a
sky blue container. Technician B says R134a is stored in a sky blue container. Who is
correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Technician B only.
Two technicians are discussing refrigerant service. Technician A says recovery is the
process of pulling a vacuum on a system to remove moisture. Technician B says if R-
134a is not recovered it will boil, and evaporate into the atmosphere if a system is
opened to the atmosphere with refrigerant in it. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Technician B only.
Technician A says latent heat of evaporation is a liquid changing to a vapor. Technician
B says latent heat of condensation is a liquid changing to a vapor. Who is correct?
, Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Tecnician A only.
Technician A says heat transfer is always hot to cold. Technician B says high pressure
always flows to low pressure. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Technician A says heat quantity is measured in British Thermal Units or Calories.
Technician B says heat quantity is what we feel. Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Tecnician A only.
nor B. - Answers- Technician A only.
Two technicians are discussing AC service procedures. Technician A says identifying
refrigerant is necessary on all vehicles that require recovery of refrigerant. Technician B
says failure to identify before recovery could cause cross contamination of refrigerant.
Who is correct?
Question options:
Tecnician A only.
Technician B only.
Both Technician A and B.
Neither Technician A nor B. - Answers- Both Technician A and B.
Technician A says that heat transfer is always cold to hot. Technician B says in order to
remove heat BTU's from the cabin, heat must be transferred from the cabin air to boil off
the liquid refrigerant in the evaporator. Who is correct?
