The maximum distance from the rear allowed for attaching mechanisms used to secure roll-on/roll-off containers is:

• 2 feet
• 3 feet
• 6 1/2 feet
• It doesn't matter.

Attach mechanisms used to secure the rear end of a roll-on/roll-off or hook lift container no more than two meters (6.5 feet) from the rear of the container.

These three things are possible symptoms of what? 1) You hear a loud "bang." 2) The vehicle thumps or vibrates heavily. 3) The steering feels heavy

• A tire blowout
• The fuel cap is loose
• The alternator belt has come off
• The trailer doors have come open

Air Leakage Rate Test: With the air pressure built up to governor cut-off (120-140 psi), shut off the engine, chock your wheels (if necessary), release the parking brake (all vehicles) and the tractor parking valve (combination vehicle), and fully apply the foot brake. Hold the foot brake for one minute. The loss rate should be:

• less than 3 psi in one minute for single vehicles and less than 4 psi in one minute for combination vehicles.
• less than 2 psi in one minute for single vehicles and less than 3 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

Describe what happens during brake fade:

• As the overheated drums expand, the brake shoes and linings have to move farther to contact the drums, and the force of this contact is reduced. Continued overuse may increase brake fade until the vehicle cannot be slowed down or stopped.
• As the overheated brake chambers expand, the air pressure drops and the brake shoes and linings have to move farther to contact the drums. Decreased air pressure won't allow proper braking pressure. Continued overuse may increase brake fade until the vehicle cannot be slowed down or stopped.
• As the overheated drums expand, the S-cam has to move farther to contact the drums, and the force of this contact is increased. Continued overuse may increase brake fade until the vehicle cannot be slowed down or stopped.
• None of these are correct

If your ABS system malfunctions:

• Your wheels will easily lock up, even under relatively minor braking forces. Brake gently.
• You still have normal brake functions. Drive and brake as you always have
• You have reduced braking force. Slow your speeds and brake sooner
• Stop driving immediately. Do not move the vehicle until repairs are made

When should you dim your headlights?

• When the road is narrow or has a lot of curves in it
• Anytime you suspect animals may cross the road ahead of you
• Within 500 feet of an oncoming vehicle and when following another vehicle within 500 feet.
• Mostly on snow-covered roads, but occasionally on dry roads

Perception Distance + Reaction Distance + Braking Distance =

• Braking resistance
• Total momentum
• Total Stopping Distance
• Total slowing distance

Which of the following are true about parking brakes?

• All these are correct
• If they are used while they are very cold and dry, they can cause the S-cam to seize. If they are used in hot temperatures when the brakes are very wet, the air pressure can build to unsafe levels
• If they are used while they are very hot, they can be damaged by the heat. If they are used in freezing temperatures when the brakes are very wet, they can freeze so the vehicle cannot move.
• If they are used in a very dry environment, you must drain the air tanks within one hour of setting the brakes.

Sliding the 5th wheel will change the weight distribution almost exclusively between which sets of axles?

• The drive axles and the trailer tandems
• The steer axle is the only one affected by fuel
• The steer axle and the trailer tandems
• The steer axle and the drive axles

Air brakes are really three different systems:

• Emergency brake, power brake, and parking brake
• Service brake, power brake, and emergency brake
• Service brake, parking brake, and emergency brake
• S-cam brake, engine brake, and emergency brake

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