EPA 608 3 TEST 2024 LATEST ACTUAL EXAM DETAILED QUESTIONS
AND GUARANTEED ANSWERS ALREADY A GRADE WITH RATIONALE.
When leak testing a low-pressure centrifugal with nitrogen, what is the maximum test
pressure? - ANSWER-10 psig.
What is the best method to determine a chiller's mornal charge for leak rate
caculations? - ANSWER-Recharging a unit due to a loss.
Who is responsible for records of aall leak inspections and any completed leak repair
verification test? - ANSWER-Owner/operatior.
A system does not have to be evacuated all the way to the required level when: -
ANSWER- leaks in the appliance make evacuation to the prescribed level unattainable
Under EPA's regulation's is used to pressurize a low pressure chiller for the
purpose of opening the system for a non major repair? - ANSWER- warming the
refrigerant
When does ASHARE standard 15-2013 require that each machinery room activate an
alarm asn menchanical ventilation? - ANSWER-Threshold Limit Valve- Time Weight
Average is exceeded.
A hydrostatic tube test kit will? - ANSWER-Determine if a tube is leaking.
When using recovery or recycling equipment manufactured or imported on or after Nov
15, 1993, the required level of evacuation for low pressure equipment is Hg
absolute:
,30mm
25mm
15mm
20mm - ANSWER- 25mm
The EPA requires that all commercial and industrial process refrigeration systems with
more than 50lb of refrigerant be repaired when the annual leak rate exceeds :
35%
15%
30%
25% - ANSWER- 35%
Open-drive compressors are typically compressors
centrifugal
reciprocating
scroll
screw - ANSWER- reciprocating
Every months or as required by the manufacturer of your unit, check the
recovery or recycling unit for leaks.
nine
six
two
three - ANSWER- three
When recovering R-11 and R-23 from a low pressure system, in order to reduce the
time of recovery it has to be recovered in:
,Gas
Liquid - ANSWER- Liquid
Reverse-acting rupture discs, which are installed with the process pressure against the
side of the disc
convex
concave - ANSWER- convex
To ensure the purge unit will perform to its published efficiency rating, verify the unit is
ARI-certified to Standard
750
1000
700
580 - ANSWER- 580
All refrigeration recovery cylinders must be approved:
OSHA
ARI
DOT
ASHRAE - ANSWER- DOT
A rupture disc opens at on a low pressure system:
25 psig
20 psig
10 psig
15 psig - ANSWER- 15 psig
, The purge unit takes its suction from the top of the
condenser
Expansion device
compressor
Evaporator - ANSWER- condenser
A purge unit is used on pressure chillers to remove noncondensables from the
system:
low
high - ANSWER- low
When using recovery equipment manufactured or imported before Nov 15, 1993, the
required level of evacuation for low pressure equipment is :
25'' Hg
15'' Hg
30'' Hg
20'' Hg - ANSWER- 25'' Hg
Water to water temperature use R-123 refrigerant
True
False - ANSWER- True
All recovery cylinders must be DOT approved and have a current hydrostatic test date
stamped on them if they contain a refrigerant with a pressure above at room
temperature.
25 psig
AND GUARANTEED ANSWERS ALREADY A GRADE WITH RATIONALE.
When leak testing a low-pressure centrifugal with nitrogen, what is the maximum test
pressure? - ANSWER-10 psig.
What is the best method to determine a chiller's mornal charge for leak rate
caculations? - ANSWER-Recharging a unit due to a loss.
Who is responsible for records of aall leak inspections and any completed leak repair
verification test? - ANSWER-Owner/operatior.
A system does not have to be evacuated all the way to the required level when: -
ANSWER- leaks in the appliance make evacuation to the prescribed level unattainable
Under EPA's regulation's is used to pressurize a low pressure chiller for the
purpose of opening the system for a non major repair? - ANSWER- warming the
refrigerant
When does ASHARE standard 15-2013 require that each machinery room activate an
alarm asn menchanical ventilation? - ANSWER-Threshold Limit Valve- Time Weight
Average is exceeded.
A hydrostatic tube test kit will? - ANSWER-Determine if a tube is leaking.
When using recovery or recycling equipment manufactured or imported on or after Nov
15, 1993, the required level of evacuation for low pressure equipment is Hg
absolute:
,30mm
25mm
15mm
20mm - ANSWER- 25mm
The EPA requires that all commercial and industrial process refrigeration systems with
more than 50lb of refrigerant be repaired when the annual leak rate exceeds :
35%
15%
30%
25% - ANSWER- 35%
Open-drive compressors are typically compressors
centrifugal
reciprocating
scroll
screw - ANSWER- reciprocating
Every months or as required by the manufacturer of your unit, check the
recovery or recycling unit for leaks.
nine
six
two
three - ANSWER- three
When recovering R-11 and R-23 from a low pressure system, in order to reduce the
time of recovery it has to be recovered in:
,Gas
Liquid - ANSWER- Liquid
Reverse-acting rupture discs, which are installed with the process pressure against the
side of the disc
convex
concave - ANSWER- convex
To ensure the purge unit will perform to its published efficiency rating, verify the unit is
ARI-certified to Standard
750
1000
700
580 - ANSWER- 580
All refrigeration recovery cylinders must be approved:
OSHA
ARI
DOT
ASHRAE - ANSWER- DOT
A rupture disc opens at on a low pressure system:
25 psig
20 psig
10 psig
15 psig - ANSWER- 15 psig
, The purge unit takes its suction from the top of the
condenser
Expansion device
compressor
Evaporator - ANSWER- condenser
A purge unit is used on pressure chillers to remove noncondensables from the
system:
low
high - ANSWER- low
When using recovery equipment manufactured or imported before Nov 15, 1993, the
required level of evacuation for low pressure equipment is :
25'' Hg
15'' Hg
30'' Hg
20'' Hg - ANSWER- 25'' Hg
Water to water temperature use R-123 refrigerant
True
False - ANSWER- True
All recovery cylinders must be DOT approved and have a current hydrostatic test date
stamped on them if they contain a refrigerant with a pressure above at room
temperature.
25 psig
