WorksheetsACR-110 CH 1 Test
Total questions: 12
Worksheet time: 6mins
How was the Pharaoh’s palace made to remain cool in the daytime by having the stones removed and placed in the desert at night?
The stones were able to radiate heat during the day.
The palace was able to ventilate during the night.
The stones were able to cool at night therefore they could absorb heat from the palace during the daytime.
None of the above statements is correct.
If a truck is placed in the sun, the temperature of the interior will be:
Lower than the ambient temperature.
Higher than the ambient temperature.
The same as the ambient temperature.
Technician A says that the manifold gauge set may be used to add or remove refrigerant from an air-conditioning system. Technician B says that the manifold gauge set can be used by a skilled technician as an essential diagnostic tool.
Technician A is correct
Technician B is correct
Both technicians A and B are correct.
Neither technicians A or B are correct.
What standard should safety glasses and goggles meet in order to be used by a technician working on an air-conditioning system?
OSHA
EPA
ANSI
SAE
Technician A says that a vacuum pump may be used to remove air from a refrigeration system. Technician B says that a vacuum pump will remove moisture from an air-conditioning system.
Technician A is correct
Technician B is correct
Both technicians A and B are correct.
Neither technicians A or B are correct.
What is the state of the refrigerant as it enters the condenser
Liquid
Hot gas
Solid
Cold
What is the state of the refrigerant as it enters the evaporator?
Liquid
Hot Gas
Solid
Cold
How is air circulated through the evaporator?
Convection air currents
Conduction
Blower motor
Ram air
What will happen if moisture is present in an air-conditioning system?
It will help to keep the compressor cool during operation.
It will perform much like the refrigerant in the system.
It will mix with the compressor oil and causes harmful acids to form in the system.
It will plug the filter drier preventing the flow of refrigerant.
Two technicians are discussing the evacuation process. Technician A says that moisture may be removed from the air-conditioning system with the use of a vacuum pump. Technician B says that air may be removed from an air-conditioning system with the use of a vacuum pump. Who is correct?
Technician A is correct.
Technician B is correct.
Both technicians A and B are correct.
Neither technicians A nor B is correct.
What is the difference between an orifice tube and a thermostatic expansion valve?
Orifice tubes can’t become plugged.
Orifice tubes have small moving parts unlike thermostatic expansion valves
Thermostatic expansion valves have small moving parts unlike the orifice tube which has no moving parts.
Thermostatic expansion valve are always located between the compressor discharge and the inlet to the condenser.
Technician A says that an antifreeze recycling machine is good for the environment because they can prevent the unlawful dumping of hazardous materials. Technician B says that the main ingredient in antifreeze (ethylene glycol) never wears out. Who is correct?
Technician A is correct
Technician B is correct
Both technician A and B are correct
Neither technician A nor B is correct
