R-410a Refrigerant Study Guide Exam
Questions and Answers Graded A+
R-410A is a Refrigerant, also known as....? - Correct answer-SUVA - 410A.......
AZ-20......Puron
The cylinder color code for R-410A is...? - Correct answer-Rose
HCFC-22 is scheduled for total phase out, by the year? - Correct answer-2020
Suction and Discharge pressures for R-410A are how much higher than R-22
Systems? - Correct answer-40% to 70%
What is Temperature Glide? - Correct answer-A range of condensing and
evaporating temperatures for one pressure.
When handling Refrigerants, Technicians should? - Correct answer-Wear approved
eye protection and gloves/ Avoid loose fitting clothes.
A full Nitrogen Cylinder has a pressure of...? - Correct answer-2500 psig
Nitrogen Cylinders should only be moved....? - Correct answer-1) with a protective
cap in place 2) with an approved Cylinder cart.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Temperature Glide for R-410A is less than...? - Correct answer-0.3 degrees F
Why is R-410A a better choice than R-22 Refrigerant? - Correct answer-R-410A is
more efficient, uses less energy, and has a lower TEWI
Due to it's higher Vapor heat Capacity, what can be said of the Discharge
Temperature of R-410A when compared to R-22? - Correct answer-Discharge
temperature are lower.
Systems using R-410A must use what type of lubricant? - Correct answer-Polyol
Ester Oil (POE)
What can be said of Polyol Ester Oils? - Correct answer-1) Can cause skin
irritation 2) Is Hygroscopic..Draws moisture like a magnet 3) Has improved heat
transfer characteristics over the mineral oils
How would one remove moisture from a Polyol Ester Oil? - Correct answer-
Change the filter drier
When installing a liquid line filter dryer on a R-410A system, the dryer must have
a pressure rating of how much psig? - Correct answer-600 psig
What can be said of true Azeotropic Refrigerant? - Correct answer-Will not
fractionate.....Has no Temperature Glide.....Is a single component Refrigerant
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Questions and Answers Graded A+
R-410A is a Refrigerant, also known as....? - Correct answer-SUVA - 410A.......
AZ-20......Puron
The cylinder color code for R-410A is...? - Correct answer-Rose
HCFC-22 is scheduled for total phase out, by the year? - Correct answer-2020
Suction and Discharge pressures for R-410A are how much higher than R-22
Systems? - Correct answer-40% to 70%
What is Temperature Glide? - Correct answer-A range of condensing and
evaporating temperatures for one pressure.
When handling Refrigerants, Technicians should? - Correct answer-Wear approved
eye protection and gloves/ Avoid loose fitting clothes.
A full Nitrogen Cylinder has a pressure of...? - Correct answer-2500 psig
Nitrogen Cylinders should only be moved....? - Correct answer-1) with a protective
cap in place 2) with an approved Cylinder cart.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Temperature Glide for R-410A is less than...? - Correct answer-0.3 degrees F
Why is R-410A a better choice than R-22 Refrigerant? - Correct answer-R-410A is
more efficient, uses less energy, and has a lower TEWI
Due to it's higher Vapor heat Capacity, what can be said of the Discharge
Temperature of R-410A when compared to R-22? - Correct answer-Discharge
temperature are lower.
Systems using R-410A must use what type of lubricant? - Correct answer-Polyol
Ester Oil (POE)
What can be said of Polyol Ester Oils? - Correct answer-1) Can cause skin
irritation 2) Is Hygroscopic..Draws moisture like a magnet 3) Has improved heat
transfer characteristics over the mineral oils
How would one remove moisture from a Polyol Ester Oil? - Correct answer-
Change the filter drier
When installing a liquid line filter dryer on a R-410A system, the dryer must have
a pressure rating of how much psig? - Correct answer-600 psig
What can be said of true Azeotropic Refrigerant? - Correct answer-Will not
fractionate.....Has no Temperature Glide.....Is a single component Refrigerant
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
