2 Safety and Preparation for Recovery Online Quiz Questions

True

False

Assume the refrigerant has the same hazards as the last one serviced.

Check the equipment label and the refrigerant’s safety data sheet.

Identify the refrigerant only by its odor.

Choose PPE based only on the recovery machine’s brand.

A disposable refrigerant supply cylinder.

A suitable, approved refrigerant recovery cylinder.

Any cylinder that can be connected to the hoses.

A cylinder with damaged markings if its valve appears intact.

True

False

Use ordinary recovery equipment and avoid checking the appliance instructions.

Use equipment and tools suitable for the refrigerant, follow instructions, and control ignition sources.

Use a fan to direct vapor toward any nearby flame.

Rely on the absence of an odor to determine whether ignition sources are safe.

Wear safety glasses or goggles and gloves that protect against cold liquid refrigerant.

Use a face shield when there is a risk of a substantial liquid release.

Wear long sleeves, long pants, and sturdy footwear to help limit skin exposure.

Use a respirator as a substitute for ventilation.

Wear gloves only if the refrigerant is known to have a strong odor.

Confirm the refrigerant from the appliance nameplate and use an appropriate identifier when needed.

Check that the recovery machine, hoses, fittings, and cylinder are compatible with the refrigerant and operating pressures.

Use clean, dry equipment.

Keep hoses capped when not in use and avoid transferring refrigerant, oil, or air between systems.

Keep recovered refrigerant segregated by type and mark cylinders clearly.

Mix unknown refrigerant into a cylinder of known refrigerant to reduce the number of containers.

Use equipment that matches the pressure but is not confirmed compatible with the refrigerant.

Continue until the cylinder looks full, then check its weight.

Weigh it during recovery and stop before its marked allowable fill is exceeded.

Fill it to the marked limit, then add a small amount to account for settling.

Use pressure alone to determine whether the allowable fill has been reached.

Apply one vacuum target to every appliance type.

Use whichever vacuum target the recovery machine reaches most quickly.

Check the EPA requirements that apply to the appliance and other relevant details.

Choose a target based only on the refrigerant’s odor.

Wear only safety glasses because liquid refrigerant presents no contact hazard.

Wear suitable eye protection and cold-protective gloves, and add a face shield for the substantial-release risk.

Use a respirator instead of eye and skin protection.

Wear a face shield only if the refrigerant has a strong odor.

True

False

Use a disposable refrigerant supply cylinder if it is upright.

Use any cylinder with a matching valve, even if its markings are out of date.

Use a suitable, approved recovery cylinder after inspecting it, and secure it against tipping.

Use a corroded cylinder if it is placed on a hand truck.

Leave the area and do not enter the suspected oxygen-deficient space for rescue without appropriate training and equipment.

Enter quickly if the refrigerant has little or no odor.

Remain nearby and rely on a respirator as a substitute for ventilation.

Try to ventilate the area by entering it without protective equipment.