AC Training Evaluation

The formula for calculating the Lift Capacity of an Air Cushion is “Square Inches X PSI”.

Can the bottom or top of an air cushion be determined?

Prior to suing a new air hose, three things need to be checked before usage. Lubricate o-rings, check for burrs on couplings, and check for obstructions and fit.

The differences between Low Pressure Air Cushions and Low Pressure Air Bags is that bags have internal restraints and cushions do not.

A rectangular Air Cushion is 48″ and the Valve Bank is at 4 lbs of air pressure. What would be the bag lift capacity?

Reach Poles are used to assist in placing the Air Cushion under the casualty.

The Compressor/ Blower creates high pressure and high volume of air.

To support and stabilize the load or casualty, cribbing should be employed.

Which of the following statements are false?

What is the standard rule regarding the minimum number of air cushions to be used for up-righting?

After the job is completed, the blower and valve bank can be used to quicken the deflating on the air cushions.

To ease the mental strain of the customer or officials at the scene, a coordinator could do which of the following?

After the initial lift is accomplished and an opening is available for the first large cushion to be placed under the load, there should be a portion of the top exposed. What is the exposure percentage?

After shutting down the compressor/ blower engine, which of the following should you do?

The three types of air lifting devices commonly used in the towing and recovery industry are; low pressure air bags, high pressure air bags, and low pressure cushions.

Most “pop-outs” happen when upright attempts are made above 45 degrees.

When suing heavy wreckers to assist air cushions in an upright, the wrecker operator not having enough load on the rigging can cause the cushions to have a “pop out” occur.

Proper matting, cribbing and cushion positioning can help to reduce “pop outs”

The practice of using air cushions for lifting is widely accepted because: (check the correct answer)

What is not primarily items used in conjunction with or to assist an air lifting system?

With the bottom rail of a trailer broken, it would not be advised to use air cushions on an overturned trailer.

Air bags and air cushions are also used to: (mark the correct answer)

What is the formula for calculating the surface area; in square inches of a square or rectangle air cushion?

Blower engine R.P.M. range should be?

It is allowable for contamination or dirt to get into the air cushion hoses.

Starter bags or high pressure bags can be used to acquire initial lift.

The formula for calculating surface area; square inches of a round air cushion is?

Movement of Air by a Compressor / Blower is defined by the term CFM.

Placing an air bag to far under a load causes the load to move sideways.

Is it safe to exceed pressure settings during an emergency?

Which one is not a position of a cushion team during an air cushion recovery?

Heat and moisture are not created by compressors/ blowers during operation.

Which the lift of a load being 6,912 lbs and air pressure of 3 lbs, what would the surface area in square inches be?

Which one is not one of the four main components of an air cushion recovery system?

Performing an up-right on a loaded trailer, which item or procedures should not be considered?

With an air cushion surface area of 2,916 square inches and the weight of the lift being 11,664 lbs, what would the valve banks air pressure gauge show?

An under water bag does not sue an air pressure relief valve.

Excluding under water recovery, an air cushion should not be tied to the load.

Being able to use air from a tow truck is a benefit of using high pressure air bags.