What are two indications of loose lug nuts?

• All these are correct
• Rusty trails or shiny threads
• Twisted or bent valve stem and over-inflated tires
• Low hub oil level or brakes squeaking

When doing an emergency system check on air brake systems, how do you begin the test?

• Turn electrical power off and begin fanning off the air pressure by rapidly applying and releasing the foot brake
• Turn off the electrical power and begin fanning off the air pressure by pulling out the red parking brake knob
• Turn the engine on and begin fanning off the air pressure by rapidly applying and releasing the foot brake
• Turn electrical power on and begin fanning off the air pressure by rapidly applying and releasing the foot brake

Describe the proper service brake check:

• While sitting still, release the parking brake and pump the service brake 5 times, then release it. Make sure the pressure does not drop more than 3 psi in one minute
• Pull forward at 5 mph, apply the service brake and stop. Check to see that the vehicle does not pull to either side and that it stops when the brake is applied
• Pull forward at 5 mph, apply the emergency brake and stop. Check to see that the vehicle does not pull to either side and that it stops when the emergency brake is applied
• All of these are correct

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

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

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
• 20-45 psi
• 60-80 psi
• 10-30 psi

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
• None of these are correct
• First aid kit and body fluid cleanup kit

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

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

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

Which is the proper procedure for checking hydraulic brakes?

• Pump the brake pedal three times and then hold it down for five seconds. The brake pedal should not move (depress) during the five seconds.
• Pump the brake three times and watch the hydraulic pressure gauge to make sure it's building pressure
• All these are correct
• Hold the brake pedal down. Make sure the pedal slowly moves all the way to the floor within 10 seconds

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

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

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