Free Practice Quiz Question List

5 Servicing, Verification, and Documentation Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Servicing, Verification, and Documentation, test your knowledge, and prepare for your next test or exam.

20 questions

Fill in the blank

1 point

During servicing, refrigerant must be into an approved cylinder; it must never be intentionally vented.

True or false

1 point

Before a non-major repair that will not be followed by evacuation, a high- or very-high-pressure appliance must be at 0 psig before it is opened. This is not the same as applying a vacuum. True or false?

A
True
B
False

Written response

1 point

When a pressure test is specified for a refrigeration appliance, which gas should be used with an appropriate regulator and pressure-limiting controls?

Choose one

1 point

After a refrigeration circuit has been opened and evacuated, which approach best ensures that it is recharged correctly?

A
Add refrigerant until pressure reaches a general target, even if the specified amount is unknown.
B
Use the specified refrigerant and amount, a scale, and the manufacturer's charging procedure.
C
Charge with any available refrigerant, then adjust the amount based only on operating noise.
D
Estimate the quantity by hose length and skip the manufacturer's procedure.

Fill in the blank

1 point

After opening a refrigeration circuit, technicians must it as directed by the manufacturer and applicable requirements before charging.

Choose one

1 point

After returning a repaired appliance to service, which set of checks best supports confirming that it is operating as intended?

A
Confirm only that the appliance powers on; operating conditions do not need to be checked.
B
Check the refrigerant pressure alone and treat it as proof of overall performance.
C
Check for abnormal noise, vibration, temperatures, pressures, and control operation, then assess performance using the manufacturer's criteria.
D
Skip operational checks if the repaired joint appears dry while the appliance is off.

Choose all

1 point

Select all statements that correctly describe how to determine applicable federal leak-repair requirements and support compliance.

A
Applicable federal leak-repair requirements can depend on refrigerant, charge, appliance category, and date.
B
One leak-rate threshold applies to every refrigeration appliance regardless of refrigerant or charge.
C
Technicians should check the current requirements for the specific appliance instead of assuming that one threshold applies universally.
D
Owners or operators have regulatory responsibilities, and technicians should provide service and test information needed for compliance.

True or false

1 point

A service report should be factual and consistent with the measurements actually taken, rather than recording results that were assumed or estimated. True or false?

A
True
B
False

Choose all

1 point

A technician has completed a repair and is preparing a service report. Select all details that belong in a clear, useful report.

A
Record the refrigerant type and quantities recovered, added, or otherwise transferred.
B
Document the repair performed, pressure-test and evacuation results, and verification results when required or performed.
C
Omit any remaining leak or test limitation if the appliance has been returned to service.
D
Record the final system status and any recommendations or required return visit.

Written response

1 point

What is the effective date of the separate EPA requirements described for certain appliances containing at least 15 pounds of refrigerant with an HFC or specified substitute?

Choose one

1 point

A pressure-decay check shows that pressure changed during a test. What conclusion should the technician draw, and what should be done to locate a leak?

A
The check identifies the exact leak location, so no other method is needed.
B
The check can show that pressure changed, but a leak-location method is still needed to find the leak.
C
The check proves that no leak exists whenever the pressure change is small.
D
The check replaces both pressure testing and leak-location methods.

Choose one

1 point

When planning a leak repair, how should a technician handle sections of the appliance that are not leaking, when practical?

A
Isolate non-leaking sections where practical.
B
Open every section of the appliance, even if it is not involved in the repair.
C
Leave leaking and non-leaking sections connected in every case.
D
Bypass isolation planning and vent refrigerant from nearby sections.

Open ended

1 point

Explain the difference between a leak inspection, an initial verification test, and a follow-up verification test. Include when each is generally performed and why a startup or charge check alone is not enough to confirm every repaired leak.

True or false

1 point

A technician servicing a refrigeration appliance must not intentionally release refrigerant into the atmosphere.

A
True
B
False

Choose one

1 point

A technician needs to pressure-test a refrigeration circuit after a repair. Which approach is appropriate?

A
Compressed air with a pressure gauge
B
Dry nitrogen with an appropriate regulator and pressure-limiting controls
C
Oxygen with a pressure regulator
D
The appliance's refrigerant, regardless of the test procedure

Choose one

1 point

After a pressure test, a technician observes a pressure drop. What can this result establish by itself?

A
It identifies the exact leak location without another method.
B
It confirms that every repaired leak is fixed during normal operation.
C
It can show a pressure change but does not locate the leak.
D
It proves the appliance has the correct refrigerant charge.

Written response

1 point

What is the name of the test that checks a repair after the appliance has returned to normal operating conditions?

Choose one

1 point

After evacuating a repaired circuit, how should a technician determine and add the refrigerant charge?

A
Use a scale and follow the manufacturer's charging procedure for the specified refrigerant and amount.
B
Add refrigerant until pressure alone reaches a chosen value.
C
Estimate the amount based on the refrigerant recovered.
D
Use any available refrigerant and adjust by operating temperature alone.

Choose one

1 point

A repaired appliance has been restarted. Which check best helps confirm that it is operating as intended?

A
Confirm only that the appliance powers on.
B
Check only the refrigerant pressure immediately after charging.
C
Assume correct operation if no leak was found while the system was off.
D
Check operating conditions and compare performance with the manufacturer's criteria.

Written response

1 point

Before opening a high- or very-high-pressure appliance for a non-major repair that will not be followed by evacuation, what pressure must it be at? Enter the value in psig.

5 Servicing, Verification, and Documentation Online Quiz Questions

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