Using a helper when backing can be helpful. What must you and your helper do before backing up?

• Have the helper sign a waiver relieving the helper of any legal implications in case of an accident
• Work out a set of hand signals that you both understand. Agree on a signal for “stop."
• Get the approval of dispatch and the customer or truck stop you are currently at
• Work out a method for signaling to cars that you're about to cross the street

Air Leakage Rate Test: With a fully charged air system (typically 125 psi), turn off the engine, release the parking brake (push the button in) and time the air pressure drop. The loss rate should be:

• less than 2 psi in one minute for single vehicles and less than 3 psi in one minute for combination vehicles.
• less than 3 psi in one minute for single vehicles and less than 4 psi in one minute for combination vehicles.
• less than 10 psi in one minute for single vehicles and less than 15 psi in one minute for combination vehicles.
• None of these are correct

For manual slack adjustors, the brake pushrod should not move more than _________ (with the brakes released) when pulled by hand.

• 6 inches
• 1 inch
• 1 foot
• 2 inches

An intermodal container is:

• A reusable, transportable enclosure that is especially designed with integral locking devices that secure it to a container chassis trailer to facilitate the efficient and bulk shipping and transfer of goods by, or between various modes of transport, such as highway, rail, sea, and air.
• A vehicle especially built and fitted with locking devices for transport.
• A specialized container, primarily used to contain and transport materials in the waste, recycling, construction/demolition, and scrap industries, which are used in conjunction with specialized vehicles, in which the container isloaded and unloaded onto a tilt frame body by an articulating hook-arm.
• A platform or tray on which cargo is placed so that it can be handled as an article. (Same as "Skid")

Which of the following is not an acceptable method of containing loose parts when securing flattened or crushed vehicles?

• Suitable covering material.
• Wedge them in between the flattened cars.
• Sideboards or sides.
• Structural walls.

How do you control airflow in the service line to the trailer?

• It's automatic and not in control of the driver
• The round yellow knob
• The foot brake or trailer hand brake
• The red eight-sided knob

When loading bell pipe on one tier, all of the following apply except:

• Load bell pipe on one tier so that the bells alternate on opposite sides of the vehicle.
• Load bell pipe on one tier so that the bells all lie on one side of the vehicle.
• If possible, the ends of consecutive pipe must be staggered within the allowable width.
• If the ends cannot be staggered, they must be aligned.

One tier

Load bell pipe on one tier so that the bells alternate on opposite sides of the vehicle.

If possible, the ends of consecutive pipe must be staggered within the allowable width.

If the ends cannot be staggered, they must be aligned.

In an air brake system, what is the difference between the supply pressure gauge and the application pressure gauge?

• The supply pressure gauge tells you how much pressure is in the air tanks. The application pressure gauge tells you how much air pressure you are applying to the brakes.
• The application pressure gauge tells you how much pressure is in the air tanks. The supply pressure gauge tells you how much air pressure you are applying to the brakes.
• The supply pressure gauge tells you what volume of air is in the air tanks. The application pressure gauge tells you what volume of air you are applying to the brakes.
• None of these are correct

When stopping a school bus at a bus stop you should stop with the front bumper how far from students, and why?

• At least 10 feet away from students. This forces the students to walk to the bus so you have a better view of their movements
• At least 100 feet away from students. This keeps traffic clearly visible in your mirrors
• At least 50 feet away from students. This gives you time to set the parking brake
• All these are correct

What is aggregate working load limit?

• 50% of the maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
• The maximum load that may be applied to a component of a cargo securement system during normal service, usually assigned by the manufacturer of the component.
• The summation of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.
• The summation of 50% of the working load limits or restraining capacity of all devices used to secure an article on a vehicle.

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