EPA Practice Test – Core #5

Up to how many ozone molecules may be destroyed by exposure to one chlorine atom in the stratosphere?

What is the expected lifespan range of a CFC molecule?

The __________ connects the evaporator coil to the compressor in a refrigerant system.

Which refrigerant has the highest ozone depletion potential (ODP)?

If there is a leak, a vacuum test allows air and moisture to enter the system?

In what state can refrigerant be transferred or sold to another individual?

What is formed by the reaction between nitrogen and hydrogen?

Under what EPA section or motor vehicle air-conditioning (MVAC) service technicians are covered?

In a low pressure refrigerated appliance which of the following refrigerants is to be used?

A fine of up to ______ per day per violation can be a minister to violators of the clean air act, which includes improper record keeping.

By what year was the use of halons completely phased out?

What is indicated when during each vacuum decay test the pressure of the system increases to greater than 0 psig but stops at some point after creating the vacuum?

Corrosion in refrigerant appliances results from a pH level that is ______.

Which gas is used to pressurize (for leak checking) or blow debris out of the system, after recovering the refrigerant from a sealed system?

Recovery rate will be _______ if your recovery unit does not have a subcooling feature.

Refrigerated appliances are divided by EPA into how many groups?

A recovery cylinder can store up to how many refrigerants?

Which of the following methods is the least effective at detecting the general area of a small leak?

A vacuum test can test a leak.

The refrigerant changes from high-pressure vapor to high-pressure liquid during…

To which of the following refrigerant groups does R-134a belong?

The refrigerant can be reclaimed if it meets the _____  purity standard.

The thermostatic expansion valve (TXV) maintains the appropriate pressure difference between _______ and _______ of the system.

What colors is a refrigerant tank that is used for recovery painted?

The refrigerant recovery cylinder must not exceed what percentage of its capacity?