FREE Refrigeration System Repair Question and Answers
According to technician A, a gasket or O-ring is used to seal the system at every air conditioning connection. According to Technician B, lubricating the O-ring with the appropriate refrigerant oil before replacing it would help prevent nicks and make installation easier. Who is correct?
The technicians are both correct.
The term EXCEPT appears in this query. Find the response to this question that CANNOT result in the specified circumstance. Before selecting an answer, thoroughly read the entire question. Regarding the expansion valve, EVERYTHING IS TRUE, EXCEPT FOR
Both high and low pressure are low when the expansion valve is stuck shut.
Which of the following doesn't fit the definition of a compressor?
Explanation: A compressor is a mechanical device that lowers the volume of a gas in order to raise its pressure. A specific sort of gas compressor is an air compressor. Pumps and compressors both increase a fluid's pressure and have the ability to transfer it through a pipe, which is a shared trait.
The cause of sporadic AC cooling is being identified. Both the high side and low side pressure gauge readings are displayed intermittently on the gauge set, and the high side occasionally decreases below 100 psi. What is the MOST likely reason for the following?
The air conditioning system won't adequately cool if the expansion valve is jammed open or clogged. The pressure in the system will rise as a result of a clogged valve, which will lead to an overheated A/C compressor. Too much refrigerant can enter the compressor and pass through the system if the valve is stuck open.
What happens in a condenser in a cooling and refrigeration system?
The part of a refrigeration or air conditioning system that disperses heat from the compressed gas (refrigerant) to the environment is called the condenser. As the gas condenses from a high-pressure vapor to a low-pressure liquid, heat is transferred.
What happens in an evaporator in a cooling and refrigeration system?
The actual cooling impact in refrigeration and air conditioning systems happens in the evaporators. Many people view the evaporator as the primary component of the refrigeration system and view the other components as being of lesser importance.
The following statements about a receiver/dryer are all true, EXCEPT:
Due to its containment, a receiver/desiccant dryer's cannot be completely dried out by system evacuation.