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EPA Type II
| Question | Answer |
|---|---|
| When recovering refrigerant from a medium pressure system with more than 200 lbs of refrigerant recover to a level of | 15'' Hg |
| A refrigerant sensor which will sound an alarm and automatically start a ventilation system in occupied equipment rooms falls under ASHRAE standard | 15 |
| What must the equipment owners/operators include in recovered refrigerant records for equipment with refrigerant charges that range from 5 to 50 pounds | The quantity of refrigerant ( by type) added or recovered from disposed appliances in each calendar month and quantity of refrigerant by type sent for reclamation or destruction |
| A crank case heater is often used to prevent refrigerant from mixing with compressor oil during periods of | Low ambient temperature |
| A comfort cooling system that contains 50 pounds or more of R-410A is leaking. What will be the new maximum allowable annual leak rate starting in 2019? | 10% |
| All HVAC/R systems must be protected by a | Pressure relief valve |
| A high pressure appliance containing less than 200lbs of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of | O inches of vacuum |
| A new split system should be checked for leaks by | Pressurizing the system with a few ounces of system refrigerant and an inert gas |
| Non condensables will cause | High discharge pressure |
| Unless plans are made to replace a system with a leak rate that exceeds the maximum leak rate, repairs must be made within | 30 days |
| What happens to a refrigerant that is heated above the saturation tempature | It remains in the vapor state |
| Which of the following refrigerants is classified as a very high pressure refrigerant | R-744 |
| Refrigerant should be recovered from the condenser outlet if the condenser is | Below the receiver |
| Leaks must be repaired on industrial process and refrigeration units with a 50 pound charge or greater when the annualized leak rate reaches __ or more | 30% |
| Proper recovery techniques begin with the use of appropriate recovery equipment that has been certified by | EPA approved laboratory |
| EPA regulations require that all Industrial Process Refrigeration (IPR) systems containing more than 50 pounds of refrigerant MUST be repaired when the annual leak rate exceeds | 30% |
| EPA regulations state that removal of which component constitutes a major repair? | Compressor |
| When an appliance containing 50 pounds or more of a regulated refrigerant leaks refrigerant at a annual rate of 125% or more, what must be included on the leak inspection records | Initial verification, verification tests and records of recovered refrigerant from equipment |
| If a leaking appliance with regulated refrigerant is not going to be repaired, it must be | Retrofitted or retired within 12 months |
| What conditions allow for a system to be opened and repaired without recovering the refrigerant to the required vacuum level | A system with a large leak and internal pressure of 0 psig |
| When dehydrating a system, it should be evacuated to a minimum level of | 500 microns |
| Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as type____ substances | A-1 |
| When using a recovery unit on a system containing 100lbs of R-410A it must be evacuated to | O inches or Mercury |
| A high pressure appliance containing 210 lbs of R-407c refrigerant must be evacuated (recovered) to a level of | 10 inches of vacuum |
| What can be done with a refrigerant trace gas and nitrogen mixture after a system leak is found | Release to the atmosphere |
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ABOMB79