Epa universal SkillCat Exam Questions With Complete
Solutions
A "major repair" under EPA's regulations would be Correct
Answers Replacing Condenser /compressor/ auxiliary heat
exchanger/ evaporator
A crankcase heater is often used to prevent refrigerant from
mixing with compressor oil during periods of: Correct Answers
Low ambient temperature
A customer has an industrial process refrigeration system that
has 1000lbs of R-22 that has exceeded the applicable leak rate
threshold. How often is the customer required to perform a leak
inspection? Correct Answers Every 3 months
A hermetic recovery machine when drawing deep vacuums will
Correct Answers Over heat due to reduced flow of refrigerant
through the compressor
A hydrostatic tube test kit will Correct Answers determine if a
tube leaks
A major repair under EPAs regulations would be Correct
Answers Replacing a condenser coil
A recovery machine is required for appliances with _ lbs or
more of refrigerant Correct Answers 15 lbs
,A strong odor is around during the recovery process. Which of
the following could be the culprit Correct Answers Compressor
burnout
A technician has to make a major repair in an appliance having
1000 pounds of r407c he must evacuate the system to which of
the following levels Correct Answers 10 inches of hg vacuum
A technique to speed up the recovery process is Correct
Answers Cool the recovery cylinder
A zeotropic blend will contain Correct Answers Two saturation
valves that are far apart
Access fittings Correct Answers Are used to gain access to type
1 appliances
According to ASHRAE Guideline 3 the system should be
checked for leaks if during a standard vacuum test the pressure
in a system rises from 1 mm hg to a level above Correct
Answers 2.5 hg
After being phased out, where can technicians obtain refrigerant
to service equipment that contains that refrigerant? Correct
Answers From recovered or reclaimed refrigerant
After refrigerant is phased out can equipment still contain
refrigerant Correct Answers Yes
After refrigerant is phased out can technicians service equipment
containing that refrigerant Correct Answers Yes
, After refrigerant liquid has been recovered from a appliance any
remaining vapor is Correct Answers removed by the recovery
system
After the evaporator which component does the refrigerant go to
next Correct Answers Compressor
After the refrigerant leaves the purge unit where does it go
Correct Answers Evaporator
Air will cause _____ discharge pressures in a refrigeration
system. Correct Answers higher
Alkylbenzene (AB) oil is used for systems with which of the
following refrigerants Correct Answers HCFC, HCFC blends
All hvac systems must be protected by a Correct Answers
Pressure relief valve
An equipment has an appliance that uses r717 under ashrae
standard 15 which piece of equipment is not compulsory in the
room Correct Answers Refrigerant detector
As technicians we must stay up to date on Correct Answers
Federal state and local law
As the temperature of a liquid increases what phase does it turn
into Correct Answers Vapor
Solutions
A "major repair" under EPA's regulations would be Correct
Answers Replacing Condenser /compressor/ auxiliary heat
exchanger/ evaporator
A crankcase heater is often used to prevent refrigerant from
mixing with compressor oil during periods of: Correct Answers
Low ambient temperature
A customer has an industrial process refrigeration system that
has 1000lbs of R-22 that has exceeded the applicable leak rate
threshold. How often is the customer required to perform a leak
inspection? Correct Answers Every 3 months
A hermetic recovery machine when drawing deep vacuums will
Correct Answers Over heat due to reduced flow of refrigerant
through the compressor
A hydrostatic tube test kit will Correct Answers determine if a
tube leaks
A major repair under EPAs regulations would be Correct
Answers Replacing a condenser coil
A recovery machine is required for appliances with _ lbs or
more of refrigerant Correct Answers 15 lbs
,A strong odor is around during the recovery process. Which of
the following could be the culprit Correct Answers Compressor
burnout
A technician has to make a major repair in an appliance having
1000 pounds of r407c he must evacuate the system to which of
the following levels Correct Answers 10 inches of hg vacuum
A technique to speed up the recovery process is Correct
Answers Cool the recovery cylinder
A zeotropic blend will contain Correct Answers Two saturation
valves that are far apart
Access fittings Correct Answers Are used to gain access to type
1 appliances
According to ASHRAE Guideline 3 the system should be
checked for leaks if during a standard vacuum test the pressure
in a system rises from 1 mm hg to a level above Correct
Answers 2.5 hg
After being phased out, where can technicians obtain refrigerant
to service equipment that contains that refrigerant? Correct
Answers From recovered or reclaimed refrigerant
After refrigerant is phased out can equipment still contain
refrigerant Correct Answers Yes
After refrigerant is phased out can technicians service equipment
containing that refrigerant Correct Answers Yes
, After refrigerant liquid has been recovered from a appliance any
remaining vapor is Correct Answers removed by the recovery
system
After the evaporator which component does the refrigerant go to
next Correct Answers Compressor
After the refrigerant leaves the purge unit where does it go
Correct Answers Evaporator
Air will cause _____ discharge pressures in a refrigeration
system. Correct Answers higher
Alkylbenzene (AB) oil is used for systems with which of the
following refrigerants Correct Answers HCFC, HCFC blends
All hvac systems must be protected by a Correct Answers
Pressure relief valve
An equipment has an appliance that uses r717 under ashrae
standard 15 which piece of equipment is not compulsory in the
room Correct Answers Refrigerant detector
As technicians we must stay up to date on Correct Answers
Federal state and local law
As the temperature of a liquid increases what phase does it turn
into Correct Answers Vapor
