If the coolant recovery container is not part of the pressurized system:

• Never try to add coolant to any cooling system when the engine is hot, regardless of the type of coolant recovery container
• The operating temperature in this type of system will be higher than in most
• The cap can be safely removed and coolant added even when the engine is at operating temperature
• The radiator cap is more prone to leakage in this type of system, so check it often

If you drive a commercial vehicle and your blood alcohol concentration is .04% or higher you will lose your CDL for how long?

• For life
• A Maximum of 2 years
• At least 6 months
• At least 1 year

Which of the following are true about parking brakes?

• If they are used in a very dry environment, you must drain the air tanks within one hour of setting the brakes.
• 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.
• 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

What should you do if you're pulling a tanker and you find a small leak?

• If the materials are not dangerous, drive to the nearest shop for repairs but no further
• If the materials are not dangerous, you can safely drive with it
• You can drive with a small leak for up to 150 miles or three hours, whichever comes sooner
• Never carry liquids or gases in a leaking tank

Which of the following statements are true about the parking brake control knob?

• Pull the parking brake control knob out to apply the parking brakes and push it in to release. The control will be a red, octagon-shaped knob labeled “trailer air supply” on newer vehicles.
• None of these are correct
• Pull the parking brake control knob out to apply the parking brakes and push it in to release. The control will be a yellow, diamond-shaped knob labeled “parking brakes” on newer vehicles.
• Push the parking brake control knob in to apply the parking brakes and pull it out to release. The control will be a yellow, diamond-shaped knob labeled “parking brakes” on newer vehicles.

What type of railroad crossing has a traffic control device installed at the crossing to regulate traffic?

• Passive crossing
• Active crossing
• Semi-automatic crossing
• Crossbuck crossing

When securing paper rolls with eyes horizontal, which of the following should be used to secure the rear-most roll?

• Wedges or chocks secured by some means in addition to friction.
• Secure roll against rear doors.
• Secure blocking against rear doors.
• All of these are acceptable

Note: Chocks, Wedges, or Blocking Securing the Front or Rear Roll - Hold in place by some means in addition to friction so they cannot become unintentionally unfastened or loose while the vehicle is in transit. This is often accomplished with nails.

Requirements for eyes crosswise: secure rearmost roll

Do not secure the rearmost roll with:

• Either the rear doors of the vehicle or intermodal container
• Or blocking held in place by those doors.

Describe controlled braking:

• Apply the brakes as hard as you can so that the wheels lock. Keep the wheels locked and the steering wheel movements very small while doing this. If you need to make a larger steering adjustment, release the brakes. Re-apply the brakes as soon as you can.
• Apply the brakes as hard as you can without locking the wheels. Keep steering wheel movements very small while doing this. If you need to make a larger steering adjustment or if the wheels lock, release the brakes. Re-apply the brakes as soon as you can.
• Turn the wheel while applying the brakes hard enough to lock the drive tires. The drive tires locking will produce more grip on the roadway, giving you more braking force and more control.
• None of these are correct

Define Tire Load:

• The maximum safe weight a tire can carry at a specified pressure. This rating is stated on the side of each tire.
• The value specified by the manufacturer of the power unit, if the value is displayed on the Federal Motor Vehicle Safety Standard (FMVSS) certification label; or the sum of the gross vehicle weight ratings (GVWRs) or the gross vehicle weights (GVWs) of the power unit and the towed unit(s), or any combination thereof, that produces the highest value.
• The value specified by the manufacturer as the unloaded weight of a single vehicle
• The value specified by the manufacturer as the loaded weight of a single vehicle.

Which clock is reset after taking 10 consecutive hours off duty?

• Only the 11 hour clock
• Only the 14 hour clock
• No clocks are reset by 10 consecutive hours off duty
• Both the 11 hour and 14 hour clocks

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