EPA 608 Book Exam Type III Certification Exam
with Correct Answers
1. Technicians maintaining, servicing, repairing or disposing of low-pressure
appliances must be certified as - Correct Answer Type III Technician or a
Universal Technician.
2. As of November 14, 1994, the sale of CFC and HCFC refrigerants is restricted to
- Correct Answer Certified technicians, NOTE: If EPA regulations change after
the technician is certified, it will be the technician's responsibility to comply with
any future changes.
3. Because a low-pressure system operates below atmospheric pressure (in a
vacuum), leaks in the gaskets or fittings will cause - Correct Answer Air and
moisture to enter the system
4. The most efficient method of leak checking a charged low-pressure refrigeration
unit is to pressurize the system by the use of? - Correct Answer Controlled hot
water or heater blankets
5. When controlled hot water or heater blankets are not feasible then nitrogen may
be used to increase pressure. - Correct Answer True
6. When pressurizing a system, do not exceed - Correct Answer 10 psig,
exceeding 10 psig can cause the rupture disc to fail.
7. When leak testing a water box, be certain the water has been removed before
placing the leak detector probe through the? - Correct Answer Drain valve
8. To leak test a tube use a? - Correct Answer A hydrostatic tube test kit
9. Systems with open drive compressors are prone to leaks at the shaft seal. -
Correct Answer True
10. Controlled hot water can be used to pressurize a system for the purpose of
opening the system for? - Correct Answer A non-major repair
11. Under EPA regulations, a "major repair" means any maintenance, service or
repair involving the removal of any or all of the following components - Correct
Answer The compressor, the condenser, the evaporator or any auxiliary heat
exchanger coil.
with Correct Answers
1. Technicians maintaining, servicing, repairing or disposing of low-pressure
appliances must be certified as - Correct Answer Type III Technician or a
Universal Technician.
2. As of November 14, 1994, the sale of CFC and HCFC refrigerants is restricted to
- Correct Answer Certified technicians, NOTE: If EPA regulations change after
the technician is certified, it will be the technician's responsibility to comply with
any future changes.
3. Because a low-pressure system operates below atmospheric pressure (in a
vacuum), leaks in the gaskets or fittings will cause - Correct Answer Air and
moisture to enter the system
4. The most efficient method of leak checking a charged low-pressure refrigeration
unit is to pressurize the system by the use of? - Correct Answer Controlled hot
water or heater blankets
5. When controlled hot water or heater blankets are not feasible then nitrogen may
be used to increase pressure. - Correct Answer True
6. When pressurizing a system, do not exceed - Correct Answer 10 psig,
exceeding 10 psig can cause the rupture disc to fail.
7. When leak testing a water box, be certain the water has been removed before
placing the leak detector probe through the? - Correct Answer Drain valve
8. To leak test a tube use a? - Correct Answer A hydrostatic tube test kit
9. Systems with open drive compressors are prone to leaks at the shaft seal. -
Correct Answer True
10. Controlled hot water can be used to pressurize a system for the purpose of
opening the system for? - Correct Answer A non-major repair
11. Under EPA regulations, a "major repair" means any maintenance, service or
repair involving the removal of any or all of the following components - Correct
Answer The compressor, the condenser, the evaporator or any auxiliary heat
exchanger coil.
