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R-410A Test Exam 2025/2026 Questions And Answers 100% Pass

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R-410A TEST EXAM 2025/2026 QUESTIONS AND ANSWERS 100% PASS

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R-410A TEST EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS




Because of its higher vapor heat capacity, the discharge temperature of R-410A is ____ than R-
22.

A. Higher

B. Lower

C. The same

D. None of the above - ANS B. Lower



R-410A is also known as:

A. Suva 410A

B. AZ-20

C. Puron

D. All the above - ANS D. All the above



Both suction and discharge pressures of R410a systems are _____ than R22 systems.

A. The same

B. 40% to 70% higher

C. 60% lower

D. 10% to 30% higher - ANS B. 40% to 70% higher

1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

, The temperature glide for R-410A is less than ____ degrees Fahrenheit over air conditioning and
refrigerating operating ranges.

A. 0.3

B. 0.9

C. 1.0

D. 1.5 - ANS A. 0.3



Compression ratio is calculated as:

A. Absolute suction pressure divided by absolute discharge pressure

B. Discharge pressure divided by suction pressure

C. Absolute discharge pressure divided by absolute suction pressure

D. Suction pressure divided by discharge pressure - ANS C. Absolute discharge pressure
divided by absolute suction pressure



Polyol Ester (POE):

A. Can be irritating to the skin

B. Is hygroscopic

C. Has improved heat transfer characteristics over mineral oil

D. All the above - ANS D. All the above



The low pressure control on R-410A systems will open at:

A. 50 psig

B. 30 psig

C. 70 psig

D. 90 psig - ANS A. 50 psig


2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.

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