CFC Refrigerant Identification & Testing

Question 1

Which tool is specifically designed to identify the type of refrigerant present in a system before servicing?

Accepted Answer

Refrigerant identifier/analyzer

Answer

Manifold gauge set

Answer

Electronic leak detector

Answer

Clamp-on ammeter

Question 2

What is the standard cylinder color for R-22 refrigerant per AHRI color-coding standards?

Accepted Answer

Light green

Answer

White

Answer

Sky blue

Answer

Orange

Question 3

A technician receives an unlabeled cylinder of refrigerant. What is the FIRST step they should take?

Accepted Answer

Identify the refrigerant using an analyzer

Answer

Weigh the cylinder

Answer

Connect it to the recovery machine

Answer

Check the pressure with a gauge

Question 4

What physical property difference most readily distinguishes R-410A from R-22 using manifold gauges?

Accepted Answer

R-410A operates at significantly higher pressures than R-22

Answer

R-410A has a lower boiling point

Answer

R-410A is flammable while R-22 is not

Answer

R-410A has a distinct odor while R-22 is odorless

Question 5

What does a positive result on a chloride test strip applied to refrigerant oil indicate?

Accepted Answer

CFC or HCFC refrigerant contamination is present

Answer

The refrigerant is an HFC

Answer

The oil needs changing due to age

Answer

The system has an active refrigerant leak

Question 6

Which AHRI standard establishes purity specifications that reclaimed refrigerants must meet before resale or reuse?

Accepted Answer

AHRI 700

Answer

AHRI 340/360

Answer

AHRI 210/240

Answer

AHRI 520

Question 7

What is the primary reason for using a refrigerant identifier before adding refrigerant to an existing system?

Accepted Answer

To verify the system contains the expected refrigerant and has not been contaminated or changed

Answer

To determine the correct recovery cylinder color to use

Answer

To check overall system operating efficiency

Answer

To measure the refrigerant's current purity level