HVAC 608 Practice Cards Questions | 2026/2027 | Answers
Correct With Complete Solutions
A compressor cannot compress which of the following? Correct
Answers Liquid
A reclamation facility receives mixed refrigerants in a tank.
What are their options? (Refuse to process it) (Destroy and
charge a fee) (Return it and charge the owner) (All of the above)
Correct Answers All of the above
A strong odor is around during the recovery process. Which of
the following could be the culprit? Correct Answers
Compressor Burnout
A substantial leak is what percentage or more of the normal
charge for industrial and commercial refrigeration systems?
Correct Answers 35%
Air will cause _____ discharge pressures in a refrigeration
system.(lower) (Higher) (No changes in) ( Lower or Higher)
Correct Answers Higher
Convert 5 tons to BTU/hour. Correct Answers 60,000 (12,000
BTU'S Per Hour)
Explosion can occur if which of the following is vented in an
enclosed environment? (Nitrogen) (Hydrogen) (Carbon Dioxide)
(Oxygen) Correct Answers Hydrogen
, How many miles above the Earth's surface does the ozone layer
in the stratosphere extend? Correct Answers 31
How much money does the EPA offer to individuals who report
information about others who vent refrigerants into the
atmosphere? Correct Answers 10,000
How often should leaks be checked in the recovery or recycling
unit for commercial refrigeration equipment? Correct Answers
3 Months
In a low-pressure system, a rupture disk will open at which of
the following psig? Correct Answers 15psi
Leak detection uses which of the following gasses? Correct
Answers HCFC-22
Open-drive compressors are typically which of the following
type of compressor? Correct Answers Reciprocating
R-22 belongs to which of the following groups of refrigerants?
Correct Answers HCFC
Refrigerant recovery equipment should be checked for which of
the following on a daily basis? Correct Answers Oil Levels and
Refrigerant Leaks
Refrigerants in the suction line are in what phase and state?
Correct Answers Cold Vapor
Correct With Complete Solutions
A compressor cannot compress which of the following? Correct
Answers Liquid
A reclamation facility receives mixed refrigerants in a tank.
What are their options? (Refuse to process it) (Destroy and
charge a fee) (Return it and charge the owner) (All of the above)
Correct Answers All of the above
A strong odor is around during the recovery process. Which of
the following could be the culprit? Correct Answers
Compressor Burnout
A substantial leak is what percentage or more of the normal
charge for industrial and commercial refrigeration systems?
Correct Answers 35%
Air will cause _____ discharge pressures in a refrigeration
system.(lower) (Higher) (No changes in) ( Lower or Higher)
Correct Answers Higher
Convert 5 tons to BTU/hour. Correct Answers 60,000 (12,000
BTU'S Per Hour)
Explosion can occur if which of the following is vented in an
enclosed environment? (Nitrogen) (Hydrogen) (Carbon Dioxide)
(Oxygen) Correct Answers Hydrogen
, How many miles above the Earth's surface does the ozone layer
in the stratosphere extend? Correct Answers 31
How much money does the EPA offer to individuals who report
information about others who vent refrigerants into the
atmosphere? Correct Answers 10,000
How often should leaks be checked in the recovery or recycling
unit for commercial refrigeration equipment? Correct Answers
3 Months
In a low-pressure system, a rupture disk will open at which of
the following psig? Correct Answers 15psi
Leak detection uses which of the following gasses? Correct
Answers HCFC-22
Open-drive compressors are typically which of the following
type of compressor? Correct Answers Reciprocating
R-22 belongs to which of the following groups of refrigerants?
Correct Answers HCFC
Refrigerant recovery equipment should be checked for which of
the following on a daily basis? Correct Answers Oil Levels and
Refrigerant Leaks
Refrigerants in the suction line are in what phase and state?
Correct Answers Cold Vapor
