Free Practice Quiz Question List

4 Safe Refrigerant Handling Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Safe Refrigerant Handling, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: A technician should not rely on the absence of refrigerant odor to decide that an enclosed work area is safe.

A
True
B
False

Written response

1 point

For routine refrigerant service, what type of gloves helps protect against splashes and frostbite?

True or false

1 point

True or false: When a splash risk calls for a face shield, it should be worn with suitable eye protection rather than replacing it.

A
True
B
False

Fill in the blank

1 point

To prevent cross-contamination, do not in a recovery cylinder.

True or false

1 point

True or false: An ordinary air-purifying respirator is adequate protection for a worker entering an area where a refrigerant release may have caused oxygen deficiency.

A
True
B
False

Written response

1 point

What piece of equipment can a technician use to locate a refrigerant leak?

Choose one

1 point

A leak detector indicates a leak at a service connection. Which response best follows safe work practices?

A
Continue working and add refrigerant to compensate for the leak.
B
Stop work, isolate the equipment if safe, ventilate as appropriate, repair or replace the faulty connection, and verify the repair.
C
Use an open flame to find the exact leak location before deciding what to do.
D
Disconnect the service connection immediately without first assessing whether it is safe.

Fill in the blank

1 point

After repairing a leak, before returning the equipment to service.

Choose all

1 point

Before servicing equipment, which actions help assess and control the job's hazards? Select all that apply.

A
Identify the refrigerant and check its safety data sheet and equipment instructions.
B
Rely on smell to determine whether the air is safe.
C
Assess the amount that could escape and any ignition sources.
D
Work in an appropriately ventilated area.

Choose all

1 point

A significant refrigerant leak is suspected. Which actions are appropriate? Select all that apply.

A
Warn others and leave the affected area.
B
Call emergency services or the site emergency contact.
C
Enter the area to rescue someone even if you are untrained and unequipped.
D
Allow only trained responders to re-enter after the atmosphere is assessed and declared safe.

Choose one

1 point

A technician needs to open a pressurized refrigerant line. What must happen before the line is opened?

A
Open the line first, then isolate the system if refrigerant escapes.
B
Use a leak detector to confirm the line is empty without changing its pressure state.
C
Safely isolate and depressurize the system before opening the line.
D
Vent refrigerant from the line to reduce its pressure.

Choose one

1 point

Which setup is appropriate for recovering refrigerant from equipment?

A
Use any recovery machine and an unlabeled cylinder if the refrigerant is recovered slowly.
B
Use recovery equipment approved for the refrigerant and a compatible, properly labeled recovery cylinder.
C
Use a cylinder containing a different refrigerant to avoid needing a new container.
D
Release some refrigerant before recovery to reduce pressure in the cylinder.

Open ended

1 point

A worker may have inhaled refrigerant. Explain what to do, including how to move the person, when to call for help, and when resuscitation may be started.

Choose one

1 point

You are preparing to service equipment, but you do not yet know which refrigerant it contains. What should you do before beginning work?

A
Begin work using the procedures for the refrigerant most commonly used in similar equipment.
B
Identify the refrigerant and check its safety data sheet and equipment instructions.
C
Start the equipment briefly to see whether any refrigerant escapes.
D
Rely on smell to decide whether the refrigerant is safe to handle.

Choose one

1 point

A service task must be done in a low-lying, poorly ventilated area where refrigerant could escape. Which approach best addresses the risk that refrigerant could displace oxygen?

A
Work without ventilation if the refrigerant has little or no noticeable odor.
B
Use a fan only after a worker notices symptoms of exposure.
C
Provide appropriate ventilation, using suitable mechanical ventilation when needed, and do not rely on smell to assess air safety.
D
Close the work area to keep refrigerant from spreading into other spaces.

Choose one

1 point

A technician needs to open a pressurized refrigerant line. Which action must be taken before opening it?

A
Safely isolate and depressurize the line before opening it.
B
Loosen a fitting slowly so pressure can escape during the work.
C
Open the line only after putting on a face shield.
D
Keep the system running so pressure remains stable as the line is opened.

Choose one

1 point

A task-specific risk assessment indicates that liquid refrigerant could splash toward a worker’s face. Which PPE approach is appropriate?

A
Use a face shield in place of eye protection whenever a splash is possible.
B
Wear only ordinary gloves because eye injuries are unlikely during refrigerant service.
C
Choose PPE based on appearance rather than the refrigerant or task.
D
Use suitable eye protection and, when splash risk calls for it, wear a face shield with that eye protection.

Choose one

1 point

A worker needs to locate a suspected refrigerant leak. Which method is appropriate?

A
Apply an open flame near the suspected leak and watch for a change.
B
Use a leak detector or another suitable leak-check method, not an open flame.
C
Add refrigerant until the leak becomes easier to locate by smell.
D
Assume the leak is fixed once the fitting has been tightened.

Written response

1 point

In the United States, which EPA section prohibits intentionally venting covered refrigerants during equipment service, repair, or disposal? Enter the section number.

Written response

1 point

What specific atmospheric hazard can an ordinary air-purifying respirator not protect against during an unknown refrigerant release?

4 Safe Refrigerant Handling Online Quiz Questions

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