FREE AND STUDY GAMES ABOUT EPA TESTS EXAM

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FREE AND STUDY GAMES ABOUT EPA TESTS EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Which refrigerants is a HCFCs?

Answer:

R-123 and R-22 Question 2: Refrigerant cylinders should be shipped:

Answer:

In the vertical upright position Question 3: A condition of excessive superheat at the evaporator outlet and compressor inlet of an air conditioning system could be an indication of

Answer:

Low on refrigerant charge

Question 4: Which of the following refrigerants can be mixed?

Answer:

None of refrigerants can be mixed

Question 5: Comfort cooling chillers and all other equipment with an annual leak rate of ____%

requires repair under EPA regulations:

Answer:

15 Question 6: One of the easiest ways to identify the type of refrigerant in a system is to:

Answer:

Check the name plate data Question 7: R-123 is classified as a ____ under ASHRAE 34 standard safety group:

Answer:

B1 Question 8: The sale of class I and Class II refrigerants have been restricted to technicians

certified by an EPA approved program since:

Answer:

November 14, 1993 Question 9: The maximum pressure that should be applied to a low pressure chiller when leak

checking with controlled nitrogen is:

Answer:

10 psig Question 10: The condition and state of the refrigeration leaving a receiver is:

Answer:

Subcooled liquid Question 11: CFCs have been manufactured in the United States since:

Answer:

1995

Question 12: Which refrigerants contain the most chlorine

Answer:

CFCs

Question 13: The time it takes to properly evacuate and dehydrate a system prior to charging

with refrigerant is determined by the:

Answer:

1) Total volume of the system 2) Amount on non-condesibles (moisture) in the system 3) Ambient temperature Question 14: Traces of oil around the sight glass inlet fitting of a refrigeration system might be the indication of

Answer:

A leak Question 15: Front seating the three-way suction service valve close the:

Answer:

Suction inlet to the valve Question 16: A low pressure chiller providing comfort cooling that has an annual leak rate of

____% of the total charge must be repaired:

Answer:

15

Question 17: Which refrigerant have a "0" ODP?

Answer:

HFCs Question 18: Stratospheric ozone depletion is a ______ problem:

Answer:

Global Question 19: A low pressure chiller generally has the rupture disk set at:

Answer:

15 psig

Question 20: The required level of evacuation for recovery equipment manufactured after November 15, 1993, on a system containing less than 200 pounds of R-22 refrigerant is:

Answer:

• inches Hg

Question 21: Which refrigerant is a CFCs?

Answer:

R-12 Question 22: R-134a is "drop-in" refrigerant for:

Answer:

R-134a in not a drop-in refrigerant Question 23: Recovery machines using water as the condensing medium would generally use

the:

Answer:

Municipal water supply Question 24: Type II classification, as identified by EPA, applies to what equipment?

Answer:

Split air conditioning equipment with five (5) pounds of refrigerant and greater Question 25: Recovery time can be shortened by:

Answer:

1) Recovering as much liquid as possible in the initial stages 2) Using short hoses 3) Cooling the recovery tank in ice water Question 26: A major repair is defined by EPA, as replacing the:

Answer:

1) Compressor 2) Evaporator