EPA CORE

Which of the following has a highest ozone depletion potential A) HFO's B) HCFCs C) HFC's D) CFCs

CFCs

The metering device _______ A) change is a high-pressure vapor to a high-pressure liquid B) change is a low pressure vapor to a low pressure liquid C) change is a high-pressure liquid to a low pressure D) change is a low pressure liquid to a low pressure vapor

Change is a high-pressure liquid to a low pressure liquid

The condenser_______ A) change is a high-pressure vapor to a high-pressure liquid B) change is a low pressure vapor to a low pressure liquid C) change is a high-pressure liquid to a low pressure liquid D) change is a low pressure liquid to a low pressure vapor

Change is a high-pressure vapor to a high-pressure liquid

Recover any remaining refrigerant, and then render the cylinder useless then recycle the metal is proper disposal method for A) recovery cylinders B) 1 pound cans C) disposable cylinders D) accumulator cylinders

Disposable cylinders

Which type of refrigerant contains no chlorine A) HCFCs B) HCFC blends C) HFC's D) CFCs

HFC's

HCFCs contain

Hydrogen, chlorine, fluorine, carbon

It has been a violation of EPA section 608 regulations to vent CFCs or HCFC since A) July 1, 1992 B) May 1, 1991 C) November 14, 1994 D) November 15, 1995

July 1, 1992

Clean, refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing through one or more filter dryers is the definition of A) recover B) reclaim C) reuse D) recycle

Recycle

HCFCs _____________ A) well, not damage the stratospheric ozone B) Will damage stratospheric ozone C) Will deplete the stratospheric ozone D) are only harmful to ground level ozone

Will deplete the stratospheric ozone

An ozone molecule contains;

three oxygen atoms

How many chlorine atoms does it take to destroy 1,000,000 ozone molecules A) 1 B) 10 C) 100 D) 1000

10

Chlorofluorocarbons (CFCs) and hydro chlorofluorocarbons (HCFC's) A) both contain hydrogen B) are explosive C) are ODP substances D) will be completely face down in 2030

Are ODP substances

The evaporator ________ A) changes the high-pressure vapor to a high pressure liquid B) change is a low pressure vapor to a low pressure liquid C) change is a high-pressure liquid to a low pressure liquid D) changes a low pressure liquid to a low pressure vapor

Change is a low pressure liquid to a low pressure vapor

The compressor ________ A) change is a high-pressure vapor to a high pressure liquid B) change is a low pressure vapor to a high-pressure vapor C) change is a high-pressure liquid to a low pressure liquid D) change is a low pressure liquid to a low pressure vapor

Change is a low pressure vapor to a high-pressure vapor

The molecule found in CFCs and HCFCs that depletes ozone is A) fluorine B) hydrogen C) carbon D) chlorine

Chlorine

Crop loss, eye disease, and skin cancer have been attributed to A) depletion of stratospheric nitrogen B) depletion of stratospheric chlorine monoxide C) depletion of stratospheric ozone D) depletion of stratospheric oxygen

Depletion of stratospheric ozone

Which international agreement regulated the production and use of CFCs and HCFCs, halons methyl chloroform and carbon tetrachloride A) Kyoto treaty B) montreal protocol C) council of Nicaea D) treaty of Ghent

Montreal protocol

When is system is in full vacuum ________ A) it is dangerous to charge the system B) never use micron gauge C) never energize the compressor D) no precautions are required

Never energize the compressor

The chlorine in CFC's will; A) dissolve in water B) not dissolve in water C) rain out of the atmosphere D) is heavier than air, and cannot rise to the stratosphere

Not dissolve in water

Technicians have been required to be certified to service, maintain or dispose of appliances containing regulated, refrigerant since A) July 1, 1992 B) May 1, 1991 C) November 14, 1994 D) November 15, 1995

November 14, 1994

Has been a violation of EPA section 608 regulations to vent HFCs since A) July 1, 1992 B) May 1, 1991 C) November 14, 1994 D) November 15, 1995

November 15, 1995

The layer of the stratosphere that protects us from excessive ultraviolet radiation is comprised of A) nitrogen B) chlorine monoxide C) ozone D) oxygen

Ozone

To process refrigerant to level, equal to new version product specifications as determined by chemical analysis defines A) recover B) reclaim C) reuse D) recycle

Reclaim

Two types of recovery systems are A) system dependent and passive B) system, dependent and self contain C) self contained and active D) recycling, and reclaiming

System dependent, and self contain

When chlorine monoxide is found in the stratosphere, it indicates that? A) we are well protected from harmful UV radiation B) additional ozone is being created C) arm for nitrous oxide is also present D) the ozone layer is being depleted

The ozone layer is being depleted