SkillCat EPA 608 NEWEST 2026-2027 ACTUAL
EXAM COMPLETE 250 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ BRAND
NEW!!
A "major repair" under EPA's regulations would be - CORRECT ANSWER: 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 ANSWER: 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 ANSWER: Every 3 months
A hermetic recovery machine when drawing deep vacuums will - CORRECT ANSWER: Over
heat due to reduced flow of refrigerant through the compressor
A hydrostatic tube test kit will - CORRECT ANSWER: determine if a tube leaks
A major repair under EPAs regulations would be - CORRECT ANSWER: Replacing a condenser
coil
A recovery machine is required for appliances with _ lbs or more of refrigerant - CORRECT
ANSWER: 15 lbs
A strong odor is around during the recovery process. Which of the following could be the culprit
- CORRECT ANSWER: 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 ANSWER: 10 inches of hg
vacuum
A technique to speed up the recovery process is - CORRECT ANSWER: Cool the recovery
cylinder
A zeotropic blend will contain - CORRECT ANSWER: Two saturation valves that are far apart
Access fittings - CORRECT ANSWER: 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
ANSWER: 2.5 hg
After being phased out, where can technicians obtain refrigerant to service equipment that
contains that refrigerant? - CORRECT ANSWER: From recovered or reclaimed refrigerant
After refrigerant is phased out can equipment still contain refrigerant - CORRECT ANSWER:
Yes
After refrigerant is phased out can technicians service equipment containing that refrigerant -
CORRECT ANSWER: Yes
After refrigerant liquid has been recovered from a appliance any remaining vapor is - CORRECT
ANSWER: removed by the recovery system
After the evaporator which component does the refrigerant go to next - CORRECT ANSWER:
Compressor
, After the refrigerant leaves the purge unit where does it go - CORRECT ANSWER: Evaporator
Air will cause _____ discharge pressures in a refrigeration system. - CORRECT ANSWER:
higher
Alkylbenzene (AB) oil is used for systems with which of the following refrigerants - CORRECT
ANSWER: HCFC, HCFC blends
All hvac systems must be protected by a - CORRECT ANSWER: 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 ANSWER: Refrigerant detector
As technicians we must stay up to date on - CORRECT ANSWER: Federal state and local law
As the temperature of a liquid increases what phase does it turn into - CORRECT ANSWER:
Vapor
ASHRAE standard 15 - 2013 requires the use of room sensors and alarms to detect refrigerant
leaks of - CORRECT ANSWER: All safety groups
ASHRAE Standard 15-2013 requires which equipment to detect refrigerant leaks? - CORRECT
ANSWER: Room sensors
At high temperatures what do CFCs and HCFCs decompose to - CORRECT ANSWER:
Hydrochloric and hydrofluoric acids
Can chlorine from the environment come from natural resources such as volcanoes - CORRECT
ANSWER: Yes but they are not the primary source
EXAM COMPLETE 250 QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ BRAND
NEW!!
A "major repair" under EPA's regulations would be - CORRECT ANSWER: 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 ANSWER: 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 ANSWER: Every 3 months
A hermetic recovery machine when drawing deep vacuums will - CORRECT ANSWER: Over
heat due to reduced flow of refrigerant through the compressor
A hydrostatic tube test kit will - CORRECT ANSWER: determine if a tube leaks
A major repair under EPAs regulations would be - CORRECT ANSWER: Replacing a condenser
coil
A recovery machine is required for appliances with _ lbs or more of refrigerant - CORRECT
ANSWER: 15 lbs
A strong odor is around during the recovery process. Which of the following could be the culprit
- CORRECT ANSWER: 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 ANSWER: 10 inches of hg
vacuum
A technique to speed up the recovery process is - CORRECT ANSWER: Cool the recovery
cylinder
A zeotropic blend will contain - CORRECT ANSWER: Two saturation valves that are far apart
Access fittings - CORRECT ANSWER: 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
ANSWER: 2.5 hg
After being phased out, where can technicians obtain refrigerant to service equipment that
contains that refrigerant? - CORRECT ANSWER: From recovered or reclaimed refrigerant
After refrigerant is phased out can equipment still contain refrigerant - CORRECT ANSWER:
Yes
After refrigerant is phased out can technicians service equipment containing that refrigerant -
CORRECT ANSWER: Yes
After refrigerant liquid has been recovered from a appliance any remaining vapor is - CORRECT
ANSWER: removed by the recovery system
After the evaporator which component does the refrigerant go to next - CORRECT ANSWER:
Compressor
, After the refrigerant leaves the purge unit where does it go - CORRECT ANSWER: Evaporator
Air will cause _____ discharge pressures in a refrigeration system. - CORRECT ANSWER:
higher
Alkylbenzene (AB) oil is used for systems with which of the following refrigerants - CORRECT
ANSWER: HCFC, HCFC blends
All hvac systems must be protected by a - CORRECT ANSWER: 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 ANSWER: Refrigerant detector
As technicians we must stay up to date on - CORRECT ANSWER: Federal state and local law
As the temperature of a liquid increases what phase does it turn into - CORRECT ANSWER:
Vapor
ASHRAE standard 15 - 2013 requires the use of room sensors and alarms to detect refrigerant
leaks of - CORRECT ANSWER: All safety groups
ASHRAE Standard 15-2013 requires which equipment to detect refrigerant leaks? - CORRECT
ANSWER: Room sensors
At high temperatures what do CFCs and HCFCs decompose to - CORRECT ANSWER:
Hydrochloric and hydrofluoric acids
Can chlorine from the environment come from natural resources such as volcanoes - CORRECT
ANSWER: Yes but they are not the primary source
