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