Section 608 core/type 1

are ODP substances

Chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs)

will not dissolve in water

The chlorine in CFC's will;

changes a low pressure vapor to a high pressure vapor

The compressor ____________________________________

changes a low pressure liquid to a low pressure vapor

The evaporator ___________________

CFC's

Which of the following has the highest Ozone Depletion Potential?

Appliance manufactured , charged, and hermetically sealed in a factory with 5 lbs or less refrigerant.

A small appliance is defined by EPA as;

legally vented

After recovering refrigerant, the Nitrogen used to flush the system may be:

nitrogen

After the refrigerant has been recovered, which of the following can be used to flush the system?

three oxygen atoms

An ozone molecule contains;

can help vaporize and liquid refrigerant during recovery

Applying heat with a heat gun to the compressor;

Recycle

Clean refrigerant for reuse by separating the oil from the refrigerant and removing moisture from the refrigerant by passing it through one or more filter driers, is the definition of;

Depletion of Stratospheric ozone

Crop loss, eye disease, and skin cancer have been attributed to;

Hydrogen, Chlorine, Flourine, Carbon

HCFC's contain

will not damage stratospheric ozone

HFC's ________;

10

How many chlorine atoms does it take to destroy 1,000,000 (one million) ozone molecules?

a compressor burnout has likely occurred

If a strong odor is detected while performing the recovery process,

recovery is not required

If after installing a fitting for the purpose of recovering the appliances refrigerant, you find that the system pressure is 0 psig;

certified by an EPA approved testing labratory

If regulations change after the technician becomes certified;

the technician is responsible for complying with any of the future changes in the regulation.

If regulations change after the technician becomes certified;

July 1,1992

It has been a violation of EPA Section 608 regulations to vent CFC's or HCFC's since;

November 15, 1995

It has been a violation of EPA Section 608 regulations to vent HFC's since

Disposable cylinders

Recover any remaining refrigerant and then render the cylinder useless, then recycle the metal is the proper disposal method for;

will make the reclaimed refrigerant non reclaimable and a charge for disposal may be levied

Recovering multiple types of refrigerants in the same cylinder;

90% refrigerant or achieving 4 inches of vacuum

Recovery equipment manufactured after November 15, 1993 must be capable of recovering;

80% of the refrigerant or 4 inches of vacuum

Recovery equipment manufactured before November 15, 1993 must be capable of recovering.

Methyl Formate, methyl chloride, or sulfur dioxide

Refrigerators in the 1950's and earlier may have used what refrigerants (recovery is not required)?

has its own means of recovery

Self-contained or active recovery equipment;

install a piercing type access fitting

Small appliances are equipped with a straight piece of tubing (process stub) used to;

the refrigerant should not be recovered

Small appliances in recreational vehicles may use refrigerants such as Ammonia, Hydrogen, or water, and therefore;

15 pounds of refrigerant or less

System-dependant devices may only be used on appliances containing;

captures refrigerant into a non-pressurized container, with the assistance of the appliance compressor.

System-dependant or passive recovery equipment;

November 14,1994

Technicians have been required to be certified to service, maintain, or dispose of appliances containing regulated refrigerants since.

Type 1 or universal certification

Technicians who perform sealed system service on small appliances must have;

changes a high pressure vapor to a high pressure liquid

The condenser _______________________________________

Ozone

The layer of the Stratosphere that protects us from excessive Ultra Violet radiation is comprised of;

changes a high pressure liquid to a low pressure liquid

The metering device ______________________________

Chlorine

The molecule found in CFC's and HCFC's that depletes ozone is:

System dependent and Self-contained

The two types of recovery systems are

Reclaim

To process refrigerant to a level equal to new (virgin) product specifications as determined by chemical analysis defines;

persons handling refrigerant during maintenance, service, or repair of small appliances.

Type I Certification is required for;

air

What is defined as a non-condensible?

Never energize the compressor

When a system is in full vacuum ____________

the ozone layer is being depleted

When chlorine monoxide is found in the stratosphere, it indicates that;

the refrigerant vapor that is vented off the top of the cylinder must be recovered

When filling a charging cylinder with a regulated refrigerant;

charge through a regulator, istall a pressure relief valve downstream line from the pressure regulator

When pressurizing a system with nitrogen you should;

place access fitting on both the low side and the high side of the system

When using a system-dependent recovery system on an appliance that has a non-operating compressor, the technician should;

run the compressor and recover from the high side of the system

When using a system-dependent recovery system on an appliance that has an operating compressor, the technician should;

Montreal Protocol

Which international agreement (Treaty) regulated the production and use of CFCs, HCFC's, halons, methyl chloroform and carbon tetrachloride?

EPA does not require repair, but leaks should be repaired whenever possible

Which of the following is true of small appliances refrigerant leaks;

HFC's

Which type of refrigerant contains no chlorine?