EPA 1 Already Graded A
1. The ozone layer protects the earth from: - ️ c) Ultraviolet radiation from the sun.
2. All devices used for refrigerant recovery must: - ️ d) Meet EPA standards.
3. Service technicians who violate Clean Air Act Provisions: - ️ d) All the above (may be fined, ma...
EPA 1 Already Graded A
1. The ozone layer protects the earth from:
- ✔️ c) Ultraviolet radiation from the sun.
2. All devices used for refrigerant recovery must:
- ✔️ d) Meet EPA standards.
3. Service technicians who violate Clean Air Act Provisions:
- ✔️ d) All the above (may be fined, may lose certification, may be required to appear in federal
court).
4. After 1995, supplies of CFC refrigerant for equipment servicing will come from:
- ✔️ a) Recovery and recycling.
5. Recovery equipment that relies upon the compressor in the appliance and/or the pressure of the
refrigerant in the appliance would be considered:
- ✔️ a) System-dependent.
6. Some state and local governments may establish laws that:
- ✔️ d) Both A and C (follow the Clean Air Act/EPA regulations and contain stricter regulations than
the Clean Air Act/EPA regulations).
7. The synthetic lubricant presently used with ternary blends containing HCFCs is:
- ✔️ a) Alkylbenzene.
8. A refrigerant oil that is hygroscopic:
- ✔️ c) Readily absorbs moisture.
,9. The component of a refrigeration system which changes a high-pressure vapor to a high-pressure
liquid is:
- ✔️ d) Condenser.
10. A hermetic compressor must never be operated when:
- ✔️ d) There is a dehydration vacuum in the system.
11. Removing refrigerant in any condition from a system and storing it in an external container without
any necessary testing or processing it in any way defines:
- ✔️ b) Recovering.
12. What effects can ozone depletion have on the environment?
- ✔️ d) All the above (reduced crop yields, reduced marine life, increased ground level ozone).
13. If a system will not hold a vacuum after it has been evacuated, then:
- ✔️ c) The system may be leaking.
14. When recovering refrigerant, it is important not to mix different refrigerants in the same container
because:
- ✔️ b) The mixture may be impossible to reclaim.
For accurate readings during evacuation, the system vacuum gauge should be connected
a) at the pump discharge
b) as far from the vacuum pump as possible
c) directly to the pump suction
d) anywhere in the evacuation service hose ✔️b
When operating refrigerant recovery or recycling equipment, the following precautions should be
followed
a) Wear safety glasses
, b) Wear protective gloves
c) Follow all safety precautions for the equipment
d) all the above ✔️d
When using vapor recovery, the fill level of the cylinder can be controlled by
a) mechanical float devices
b) electronic shut off devices
c) weight
d) All the above ✔️d
When transporting cylinders containing used refrigerant, DOT requires that you
a) Use OSHA approved containers
b) attach DOT classification tags
c) Ship by EPA certified carrier
d) Do all the above ✔️b
Which refrigerant is a chlorine free refrigerant
a) HFC-134a
b) CFC-12
c) HCFC-22
d) HCFC-124 ✔️a
Ozone depletion in the stratosphere is what type of problem
a) Local
b) Regional
c) National
d) Global ✔️d
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