epa 608 type 2

Question 1

When using a recovery unit on a system containing 100 lbs. of R-410A it must be evacuated to;

Answer 1

0 inches of Mercury

Question 2

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?

Answer 2

10%

Question 3

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.

Answer 3

30%

Question 4

What happens to a refrigerant that is heated above the saturation temperature?

Answer 4

It remains in the vapor state.

Question 5

If a leaking appliance with a regulated refrigerant is not going to be repaired, it must be;

Answer 5

retrofitted or retired within 12 months.

Question 6

Refrigerant should be recovered from the condenser outlet if the condenser is;

Answer 6

Below the receiver

Question 7

Refrigerants CFC-12, HCFC-22, and HFC-134a are all classified as Type _______ substances.

Answer 7

A-1

Question 8

All HVAC/R systems must be protected by a;

Answer 8

Pressure relief valve

Question 9

EPA regulations state that removal of which component constitutes a “major repair”?

Answer 9

Compressor

Question 10

Proper recovery techniques begin with the use of appropriate recovery equipment that has been certified by;

Answer 10

EPA approved laboratory

Question 11

What must the equipment owners/operators include in recovered refrigerant records for equipment with refrigerant charges that range from 5 to 50 pounds?

Answer 11

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.

Question 12

What can be done with a refrigerant trace gas and nitrogen mixture after a system leak is found?

Answer 12

Release to the atmosphere.

Question 13

When recovering refrigerant from a medium-pressure system with more than 200 lbs. of refrigerant, recover to a level of;

Answer 13

15” Hg

Question 14

A refrigerant sensor which will sound an alarm and automatically start a ventilation system in occupied equipment rooms falls under ASHRAE Standard;

Answer 14

15

Question 15

When an appliance containing 50 pounds or more of a regulated refrigerant leaks refrigerant at an annual rate of 125% or more, what must be included on the leak inspections records?

Answer 15

Initial verification, verification tests and records of recovered refrigerant from equipment.

Question 16

A crankcase heater is often used to prevent refrigerant from mixing with compressor oil during periods of:

Answer 16

Low ambient temperature

Question 17

Unless plans are made to replace a system with a leak rate that exceeds the maximum leak rate, repairs must be made within;

Answer 17

30 days.

Question 18

Non-condensable will cause;

Answer 18

High discharge pressure

Question 19

A new split system should be checked for leaks by;

Answer 19

pressurizing the system with a few ounces of system refrigerant and an inert gas.

Question 20

A high-pressure appliance containing less than 200 lbs. of an HCFC or HFC refrigerant must be evacuated (recovered) to a level of;

Answer 20

0 inches of vacuum

Question 21

When dehydrating a system, it should be evacuated to a minimum level of;

Answer 21

500 Microns

Question 22

Which of the following refrigerants is classified as a very high-pressure refrigerant?

Answer 22

R-744

Question 23

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;

Answer 23

30 %

Question 24

What conditions allow for a system to be opened and repaired without recovering the refrigerant to the required vacuum level?

Answer 24

A system with a large leak and internal pressure of 0 psig

Question 25

A high-pressure appliance containing 210 lbs. of R-407C refrigerant must be evacuated (recovered) to a
level of;

Answer 25

10 inches of vacuum