EPA CORE ICT TECH

A violation of the Clean Air Act, such as the knowing release of refrigerant during the maintenance, service, repair, or disposal of appliances, can result in fines up to

$32,000 per day per violation

On a typical manifold set, the low pressure gauge is color-coded _____.

. blue

The smallest container in which refrigerants may be sold to a Section 608 certified technician is _____lb

20

Refrigerant ______ is the type of contamination that is the most difficult for a reclaiming facility to eliminate.

From an acid burnout

(______) are fluorocarbon refrigerants that cause no harm to stratospheric ozone

HFC

___ is a CFC refrigerant

R-12

_____is an HFC refrigerant.

R-134a

_____refrigerant must be recovered before opening or disposing of appliances

R-134a R-22 R-502 all of the above

___ is an HCFC refrigerant

R-22

Which of the following refrigerant contains CFC's?

R-500

When an operating refrigeration system contains moisture, the moisture will cause _____.

acid to from

All recovery equipment manufactured today is required to have ______

an EPA approved equipment testing organization certification label

For accurate readings during evacuation, the system vacuum gauge should be connected ______

as far from the vacuum pump as possible

Service technicians who violate Clean Air provisions may _____.

be fined lose certificationbe required to appear in federal court all of the above

The Clean Air Act _____.

calls for the phaseout of CFC/HCFC production.. prohibits CFC/HCFC venting as of July 1, 1992requires the EPA to set standards for recovery of refrigerants prior to appliance disposal. all of the above

Refrigerant R-22. although considered to be non toxic, _____.

can cause oxygen deprivation (asphyxia)

Refrigerant vapors or mist in high concentrations must not n\be inhaled because refrigerant vapors ______

cause heart irregularities or unconsciousness

CFCs are more likely to reach the stratosphere than other compounds containing chlorine because CFCs

do not dissolve in water or break down into compounds that dissolve in water, so CFCs do not rain out of the atmosphere

When addressing consumer questions regarding additional service expense due to recovery efforts, technicians must _____.

explain to the customer that recovery is necessary to protect human health and the environmentremind the customer that all professional service personnel are duty bound to follow the law and protect the environment. explain to the customer that refrigerant recovery is required by law all of the above

Care must be taken not to overfill reusable containers because ______

he internal pressure of the cylinder may rise in heated areas and cause an explosion.

Upon completing the transfer of liquid refrigerant between the recovery unit and the refrigeration system, a technician must guard against trapping_______.

liquid refrigerant in the compressor or between service calves

Cooling of the medium occurs in a direct-expansion vapor-compression refrigeration system when ____

liquid refrigerant turns to a vapor

The strongest evidence that CFCs are in the stratosphere is _______

measurement of CFCs in air samples from the stratosphere

.R-134a refrigerate charged systems should be leak checked with _____.

pressurized nitrogen

A refrigerant cylinder that has a gray body and a yellow top indicates the cylinder is designed to hold

recovered refrigerant

The list of good service practices for conserving refrigerant includes

recovering or recycling refrigerant . keeping systems tight finding and repairing leaks all of above

EPA regulations require the installation of service aperture or process stub on all appliances using Class I or Class II refrigerants for ______.

recovering refrigerants

When corrosion buildup is found within the body of a relief valve, the valve must be _____.

replaced

chlorine in the stratosphere is believed to come primarily from CFC rather than from natural sources, such as volcanoes, because

the rise in the amount of chlorine measured in the stratosphere over the past two decades matches the rise in the amount of fluorine over same periodof the rise in the amount of chlorine measured in emissions over the same periodsamples of air taken from the stratosphere over erupting volcanoes contribute a small quantity of chlorine to the stratosphere compared to CFCsall..... of the above

Measuring final system vacuum is accomplished with the______.

vacuum pump operating

Ozone depletion potential or "ODP" is ____

a rating of health hazards caused by ozone depletion ozone