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EPA 608 TYPE II ACTUAL EXAM DETAILED QUESTIONS AND CORRECT ANSWERS ALREADY A GRADE 2024 LATEST. $17.19
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EPA 608 TYPE II ACTUAL EXAM DETAILED QUESTIONS AND CORRECT ANSWERS ALREADY A GRADE 2024 LATEST.
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EPA 608 TYPE II ACTUAL EXAM DETAILED QUESTIONS AND CORRECT ANSWERS ALREADY A GRADE 2024 LATEST. Heat pumps that have been retrofitted from R-22 to R-407C should be leak checked with: ________. a) HFCs b) HCFCs c) pressurized nitrogen d) compressed air - ANSWER- c) pressurized nitrogen Whe...

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  • January 18, 2024
  • 31
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

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  • EPA 608
  • EPA 608

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EPA 608 TYPE II ACTUAL EXAM DETAILED QUESTIONS AND CORRECT

ANSWERS ALREADY A GRADE 2024 LATEST.




Heat pumps that have been retrofitted from R-22 to R-407C should be leak checked

with: ________.



a) HFCs

b) HCFCs

c) pressurized nitrogen

d) compressed air - ANSWER- c) pressurized nitrogen



When inspecting a system for leaks, you should look for: ________.



a) frost on the pipes

b) puddles of liquid refrigerant

c) particles from the drier core

d) traces of oil - ANSWER- d) traces of oil



Soap bubble testing is used: _________.



a) to pinpoint refrigerant leaks

b) only with CFCs and HCFCs

,c) to detect water leaks

d) to see if the condenser or evaporator is excessively dirty - ANSWER- a) to pinpoint

refrigerant leaks



The proper charging method for blended (non-azeotropic) refrigerants (400 Series) is to

remove the charge from the cylinder as a: _____.



a) vapor

b) liquid

c) superheated vapor

d) subcooled liquid - ANSWER- b) liquid



An oil sample should be taken when: _________.



a) a new filter drier has been installed

b) the compressor has burned out

c) the unit is not cooling properly

d) recycled refrigerant has been added to the unit - ANSWER- b) the compressor has

burned out



Which repair would ALWAYS be considered "major" under EPA's regulations?



a) Replacement of an evaporator coil.

,b) Replacement of a filter drier.

c) Replacement of a schraeder valve core.

d) Replacement of a condenser fan motor. - ANSWER- a) Replacement of an

evaporator coil.



Refrigerant leaves the receiver of a system as a:



a) low pressure liquid

b) low pressure vapor

c) high pressure liquid

d) high pressure vapor - ANSWER- c) high pressure liquid



R-410A requires recovery tanks rated for at least: ______.



a) 240 psig

b) 300 psig

c) 400 psig

d) 500 psig - ANSWER- c) 400 psig



A routine maintenance task which must be performed on refrigerant recycling machines

is to: __________.



a) check compressor seals

, b) change electrical fuses

c) replace moisture sight glass

d) change filter and compressor oil (if any) - ANSWER- d) change filter and compressor

oil (if any)



Pressure relief valve must not be: ______.



a) installed in series

b) installed in parallel

c) installed vertically

d) installed horizontally - ANSWER- a) installed in series



When servicing an operating unit that has a receiver/storage tank, the: _________.



a) compressor should be isolated off

b) liquid should be recovered last

c) refrigerant should be recovered into the receiver

d) gauge pressure should be achieved by venting - ANSWER- c) refrigerant should be

recovered into the receiver



During the evacuation of the system that contains large amounts of moisture it may be

necessary to increase pressure in the system with ______, to counteract the freezing of

the moisture.

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