R 410A COMPREHENSIVE EXAMINATION TEST QUESTIONS AND SOLUTIONS FULLY VERIFIED

R 410A COMPREHENSIVE EXAMINATION
TEST QUESTIONS AND SOLUTIONS FULLY
VERIFIED

●● The cylinder color code for R-410A is...?
Answer: Rose


●● HCFC-22 is scheduled for total phase out, by the year?
Answer: 2020


●● Suction and Discharge pressures for R-410A are how much higher
than R-22 Systems?
Answer: 40% to 70%


●● What is Temperature Glide?
Answer: A range of condensing and evaporating temperatures for one
pressure.


●● When handling Refrigerants, Technicians should?
Answer: Wear approved eye protection and gloves/ Avoid loose fitting
clothes.

, ●● A full Nitrogen Cylinder has a pressure of...?
Answer: 2500 psig


●● Nitrogen Cylinders should only be moved....?
Answer: 1) with a protective cap in place 2) with an approved Cylinder
cart.


●● Temperature Glide for R-410A is less than...?
Answer: 0.3 degrees F


●● Why is R-410A a better choice than R-22 Refrigerant?
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?
Answer: Discharge temperature are lower.


●● Systems using R-410A must use what type of lubricant?
Answer: Polyol Ester Oil (POE)


●● What can be said of Polyol Ester Oils?