EPA Section 608 Core C

One chlorine atom in stratosphere can able to destroy approximately _______ number of ozone molecules:

• 100,000

• 10,00,000

• 1000

• 10,000

A refrigerant recovery cylinder is not to be filled to more than ______ of its capacity.

• 20%

• 80%

• 60%

• 40%

Which of the following is used to minimize the leakage of refrigerant while checking the pressure of an AC/R system:

• Pipe thread sealant

• Self-sealing hoses with low-loss fittings

• Hand valves

• All answers are correct

A recovery cylinder can store a maximum ______ number of refrigerants at one time:

• 1

• 2

• 3

• 4

What is the Significant New Alternatives Policy (SNAP) Program?

• Covers only CFC and HCFC refrigerants used in residential air conditioning.

• Relates to CFC and HCFC refrigerants used in commercial air conditioning.

• Identifies refrigerant's ODP and GWP levels

• EPA's program that identifies refrigerants with lower overall risks to human health and the environment.

For accurate readings during evacuation the micron gauge should be connected:

• As far away from the vacuum pump as possible

• As close the vacuum pump as possible

• In series with a relief valve

• In parallel with a relief valve

Tapping a compressor with a rubber mallet will:

• All answers are correct

• Cause the refrigerant to be trapped

• Damage the compressor

• Aid in releasing trapped refrigerant from the oil

__________ means to remove refrigerant in any condition from a system and to store it in an approved cylinder.

• Recycle

• Recover

• Reclaim

• Evacuate

The EPA allows the following reason(s) for venting refrigerant to the atmosphere:

• Mixtures of refrigerant and refrigerant used for leak detection

• Refrigerant emitted during normal operation

• De minimus

• All answers are correct

Bubble point (liquid) values are used when charging by ____________________

• Condenser superheat

• Evaporator superheat

• Condenser subcooling

• Evaporator subcooling