EPA 608 SkillCat Type III section PRACTICE QUESTIONS
COMPLETE & ACCURATE EXAM APPROVED QUESTIONS AND
CORRECT VERIFIED SOLUTIONS (100% CORRECT VERIFIED
ANSWERS) CURRENTLY UPDATED VERSION 2026 EDITION
|GUARANTEED PASS
While evacuating a low-pressure chiller with no confirmed tube leaks, the
water pump is accidentally switched off. As recovery continues, the
barrel temperature keeps dropping. What is the immediate risk if you do
not restore water circulation?
A.) Loss of recovered mass to the purge unit
B.) Sudden rise in refrigerant pressure above setpoint
C.) Ice formation that can damage tubes and pumps
D.) Loss of vacuum due to air diffusion
Ice formation that can damage tubes and pumps
What risk is associated with attempting to melt ice formed in the chiller
system after charging with liquid refrigerant?
A.) Increased energy consumption
B.) Increased compressor wear and tear
C.) Risk of rupture and bursting of coils
D.) Decreased cooling efficiency
Risk of rupture and bursting of coils
,While charging a water-cooled, low-pressure chiller after evacuation,
which indicator tells you it's safe to switch from vapor to liquid charging?
A.) Saturation temperature increases above 32°F
B.) Suction pressure falls below 10 in Hg absolute
C.) Cylinder scale shows 15 minutes of steady mass flow
D.) Discharge superheat increases by 10°F from baseline
Saturation temperature increases above 32°F
Identify the recovery requirements for equipment disposal.
A.) 0 psig
B.) 15 inches of Hg vacuum
C.) 25 inches of Hg vacuum
D.) 25 mm of Hg absolute
25 mm of Hg absolute
Water present in the system can freeze if?
A.) A large vacuum pump is used for evacuation
B.) A recovery unit is used for evacuation
C.) The system's compressor is used for evacuation
D.) A house vacuum cleaner is used for evacuation
A large vacuum pump is used for evacuation
, During the evacuation of a moisture-laden chiller, the vacuum stalls, and
frost begins to form in the piping. What action should the technician take
to restore flow without adding refrigerant?
A.) Add a small refrigerant charge to warm the lines, then pull again
B.) Run the compressor to heat the circuit before continuing evacuation
C.) Open the system to room air to equalize pressure and temperature
D.) Break the vacuum with a brief nitrogen sweep, then resume
evacuation
Break the vacuum with a brief nitrogen sweep, then resume evacuation
After confirming a leak, a technician is scheduled to replace an
evaporator coil on a low-pressure chiller. Under EPA rules, this job is
classified as a:
A.) Major repair
B.) Emergency service
C.) Minor repair
D.) System-dependent repair
Major repair
COMPLETE & ACCURATE EXAM APPROVED QUESTIONS AND
CORRECT VERIFIED SOLUTIONS (100% CORRECT VERIFIED
ANSWERS) CURRENTLY UPDATED VERSION 2026 EDITION
|GUARANTEED PASS
While evacuating a low-pressure chiller with no confirmed tube leaks, the
water pump is accidentally switched off. As recovery continues, the
barrel temperature keeps dropping. What is the immediate risk if you do
not restore water circulation?
A.) Loss of recovered mass to the purge unit
B.) Sudden rise in refrigerant pressure above setpoint
C.) Ice formation that can damage tubes and pumps
D.) Loss of vacuum due to air diffusion
Ice formation that can damage tubes and pumps
What risk is associated with attempting to melt ice formed in the chiller
system after charging with liquid refrigerant?
A.) Increased energy consumption
B.) Increased compressor wear and tear
C.) Risk of rupture and bursting of coils
D.) Decreased cooling efficiency
Risk of rupture and bursting of coils
,While charging a water-cooled, low-pressure chiller after evacuation,
which indicator tells you it's safe to switch from vapor to liquid charging?
A.) Saturation temperature increases above 32°F
B.) Suction pressure falls below 10 in Hg absolute
C.) Cylinder scale shows 15 minutes of steady mass flow
D.) Discharge superheat increases by 10°F from baseline
Saturation temperature increases above 32°F
Identify the recovery requirements for equipment disposal.
A.) 0 psig
B.) 15 inches of Hg vacuum
C.) 25 inches of Hg vacuum
D.) 25 mm of Hg absolute
25 mm of Hg absolute
Water present in the system can freeze if?
A.) A large vacuum pump is used for evacuation
B.) A recovery unit is used for evacuation
C.) The system's compressor is used for evacuation
D.) A house vacuum cleaner is used for evacuation
A large vacuum pump is used for evacuation
, During the evacuation of a moisture-laden chiller, the vacuum stalls, and
frost begins to form in the piping. What action should the technician take
to restore flow without adding refrigerant?
A.) Add a small refrigerant charge to warm the lines, then pull again
B.) Run the compressor to heat the circuit before continuing evacuation
C.) Open the system to room air to equalize pressure and temperature
D.) Break the vacuum with a brief nitrogen sweep, then resume
evacuation
Break the vacuum with a brief nitrogen sweep, then resume evacuation
After confirming a leak, a technician is scheduled to replace an
evaporator coil on a low-pressure chiller. Under EPA rules, this job is
classified as a:
A.) Major repair
B.) Emergency service
C.) Minor repair
D.) System-dependent repair
Major repair
