What do you check for with the safety belt during a pre-trip inspection?

• The belt adjusts and latches properly
• The belt is not ripped or frayed
• The belt is securely mounted
• All these are correct

When checking the suspension components, what should you check for?

• Look for missing, shifted, cracked or broken leaf springs.
• Air ride suspension should be checked for damage and leaks.
• All these are correct
• Look for broken or distorted coil springs.

When doing an air brake system leak check, which of the following is the correct setup for the test?

• Build the air pressure until it is between 50 - 60 pounds, keep the engine running, chock your wheels, (if necessary), release the tractor parking valve and trailer parking valve
• None of these are correct
• With the air pressure built up to the governor cut-off (120-140 psi), shut off the engine running, chock your wheels, (if necessary), and engage the tractor parking valve and trailer parking valve
• With the air pressure built up to the governor cut-off (120-140 psi), shut off the engine, chock your wheels, (if necessary), release the tractor parking valve and trailer parking valve

When checking the steering box components under the hood, what should you check for?

• Check that the steering box is securely mounted and not leaking
• Look for any missing nuts, bolts and cotter keys
• All these are correct
• Check for power steering fluid leaks or damage to power steering hoses

When doing an emergency system check on air brake systems, the tractor parking valve and the trailer parking valve should close (pop out) when the pressure gets below what reading?

• 80 - 100 psi
• 10-30 psi
• 60-80 psi
• 20-45 psi

When doing a pre-trip inspection, how much of a gap should there be between the 5th wheel and the trailer?

• No gap
• No less than 2 inches
• 1/4 inch
• 1 inch

In addition to checking for spare electrical fuses (if equipped), three red reflective triangles and a properly charged and rated fire extinguisher, school bus drivers must also inspect which of the following emergency equipment?

• Tool kit and tire patching kit
• Emergency flares and flashlight
• First aid kit and body fluid cleanup kit
• None of these are correct

Which of the following is NOT one of the belts you will check during a pre-trip inspection of the engine compartment?

• Water pump belt
• Power steering belt
• Alternator belt
• Camshaft belt

When doing an emergency system check on air brake systems, the low air warning device (buzzer, light, other) should activate when the pressure gets below what reading?

• 60 psi
• 80 psi
• 100 psi
• 140 psi

When doing an air brake system leak check, how long do you hold the pedal and what do you check for?

• Hold the pedal for one minute. Check the air gauge to see if the air pressure drops more than 6 pounds in one minute (single vehicle) or 8 pounds in one minute (combination vehicle)
• Hold the pedal for two minutes. Check the air gauge to see if the air pressure drops more than 1 pound in one minute (single vehicle) or 2 pounds in one minute (combination vehicle)
• Hold the pedal for 10 seconds. Check the air gauge to see if the air pressure drops more than 3 pounds in one minute (single vehicle) or 4 pounds in one minute (combination vehicle)
• Hold the pedal for one minute. Check the air gauge to see if the air pressure drops more than 3 pounds in one minute (single vehicle) or 4 pounds in one minute (combination vehicle)

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