EPA 608 Type III Study Guide Questions | 2026/2027 |
Answers Correct | With Complete Solutions
A refrigeration system should not be recovered unless a gauge
indicates a minimum pressure of ________ psig within the
system. Correct Answers 15 Psig
A system pressure of 16.9 is necessary in the shell of a CFC-11
chiller before liquid charging can begin. Correct Answers True
A vacuum pump that is to large for a particular system can cause
what problems? Correct Answers The reduction in pressure on
the system can case any moisture in the system to freeze
According to ASHRAE 3-1990, how much of a rise is permitted
in a standing vacuum? Correct Answers 2.5mm HG
According to ASHRAE standard 3, leak checking and repairs
are recommended if a system is evacuated to a pressure of 1
mm. Hg. vacuum, and then system pressure rises to 2.5 mm
during the "time to rise" test. Correct Answers True
According to ASHRAE, HCFC-123 is: Correct Answers Toxic
and non-flammable
After a liquid recovery, what must be done with the vapor still in
the system? Correct Answers A vapor recovery must be done
to remove any remaining refrigerant vapor
After the liquid refrigerant has been recovered from a chiller, the
next step is to: Correct Answers Recover the vapor refrigerant
, Air and non-condensables generally enter a chiller from:
Correct Answers Fittings and gaskets
Any vapor refrigerant vented from the top of a graduated
charging cylinder while filling the charging cylinder with liquid:
Correct Answers Must be recovered
ASHRAE standard 15 covers refrigerant level monitoring for
what refrigerant? Correct Answers All refrigerants - CFC,
HCFC, 410a
Before shipping refrigerant to be reclaimed, it is necessary to:
Correct Answers a. Properly label refrigerant containers,
Complete shipping paperwork, Ensure that containers meet DOT
standards
Before the recovery process can be initiated, a technician must
know: Correct Answers The type of refrigerant in the system
Before using a recovery unit, you should: Correct Answers
Check service valves positions, Check oil level,
Evacuate
Charging a low-pressure chiller with liquid refrigerant while the
chiller is in a deep vacuum should be avoided because: Correct
Answers It is likely to cause the water tubes to freeze and burst
Checking the pressure of a recovery cylinder at a known
temperature can determine: Correct Answers The type of
refrigerant in the cylinder
Answers Correct | With Complete Solutions
A refrigeration system should not be recovered unless a gauge
indicates a minimum pressure of ________ psig within the
system. Correct Answers 15 Psig
A system pressure of 16.9 is necessary in the shell of a CFC-11
chiller before liquid charging can begin. Correct Answers True
A vacuum pump that is to large for a particular system can cause
what problems? Correct Answers The reduction in pressure on
the system can case any moisture in the system to freeze
According to ASHRAE 3-1990, how much of a rise is permitted
in a standing vacuum? Correct Answers 2.5mm HG
According to ASHRAE standard 3, leak checking and repairs
are recommended if a system is evacuated to a pressure of 1
mm. Hg. vacuum, and then system pressure rises to 2.5 mm
during the "time to rise" test. Correct Answers True
According to ASHRAE, HCFC-123 is: Correct Answers Toxic
and non-flammable
After a liquid recovery, what must be done with the vapor still in
the system? Correct Answers A vapor recovery must be done
to remove any remaining refrigerant vapor
After the liquid refrigerant has been recovered from a chiller, the
next step is to: Correct Answers Recover the vapor refrigerant
, Air and non-condensables generally enter a chiller from:
Correct Answers Fittings and gaskets
Any vapor refrigerant vented from the top of a graduated
charging cylinder while filling the charging cylinder with liquid:
Correct Answers Must be recovered
ASHRAE standard 15 covers refrigerant level monitoring for
what refrigerant? Correct Answers All refrigerants - CFC,
HCFC, 410a
Before shipping refrigerant to be reclaimed, it is necessary to:
Correct Answers a. Properly label refrigerant containers,
Complete shipping paperwork, Ensure that containers meet DOT
standards
Before the recovery process can be initiated, a technician must
know: Correct Answers The type of refrigerant in the system
Before using a recovery unit, you should: Correct Answers
Check service valves positions, Check oil level,
Evacuate
Charging a low-pressure chiller with liquid refrigerant while the
chiller is in a deep vacuum should be avoided because: Correct
Answers It is likely to cause the water tubes to freeze and burst
Checking the pressure of a recovery cylinder at a known
temperature can determine: Correct Answers The type of
refrigerant in the cylinder
