CFC Refrigerant Identification & Testing 1

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

A refrigerant identifier/analyzer uses infrared spectroscopy to determine the exact composition of refrigerant before service work begins.

Question 2

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

Accepted Answer

Light green

Answer

R-22 refrigerant cylinders are painted light green per AHRI cylinder color-coding standards to help technicians quickly identify refrigerant type.

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

Identifying unknown refrigerant with an analyzer before any service procedure prevents contamination of recovery cylinders and ensures safe handling.

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 operates at pressures approximately 50-70% higher than R-22, which is a key distinguishing characteristic visible on manifold gauges in the field.

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

A positive chloride test indicates the presence of chlorine atoms, which are found in CFCs and HCFCs but not in HFCs, helping identify the refrigerant family.

(CFC) Chlorofluorocarbon Certification Practice Test

(CFC) Chlorofluorocarbon Certification Practice Test

CFC Refrigerant Identification & Testing 1