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Commercial Driving Questions - All Grades

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Continuing Education Commercial Driving
When you drive a vehicle with ABS, you should brake as normal.
  1. True
  2. False
Continuing Education Commercial Driving
What should a driver check for during a trip? (circle all that apply)
  1. Check mirror postioning while driving
  2. Loose, cracked, broken, or missing frame
  3. Gauges for signs of trouble
  4. Dimmer switch and high beams
  5. Check critical items when you stop
  6. Turn off headlights and four-way emergency flashers
  7. Use your senses for problems
Continuing Education Commercial Driving
The average driver has a reaction time of                second to                 second at 55 mph.
  1. 1, 3/5
  2. 1/2, 4
  3. 3/4 , 1
Continuing Education Commercial Driving
When you triple the speed from 20 to 60 mph and the impact and braking distance is                 times greater.
  1. 5
  2. 10
  3. 9
  4. 11
  5. 50
Continuing Education Commercial Driving
Retarders are used:
  1. To help reduce the need for using your brakes
  2. Because they are safer to use in town
  3. With poor traction and can help to reduce the chance of skidding
  4. Automatically for safety
Continuing Education Commercial Driving
Which of the following should be checked on the vehicle during a walk around inspection?(choose all that apply)
  1. Turn on parking, clearance, side-marker, and ID lights
  2. Turn off headlights and four-way emergency flashers
  3. Check trailer coupling devices
  4. Push dimmer switch and check that high beams work
  5. Check cargo securement devices
  6. Check tires, wheels, and rims
  7. Go to the front of vehicle and check that low beams are on and bothe of the four-way flashers are working
  8. Turn on right turn signal, and start walk-around inspection
Continuing Education Commercial Driving
You are coupling a tractor to a trailer and have backed up to it, but not under it. What should you hook up before backing fully under the trailer
  1. The safety chain
  2. The emergency and service air lines
  3. Nothing, back up and lock the fifth wheel
Continuing Education Commercial Driving
A full trailer is 10 times more likely to rollover than an empty one.
  1. True
  2. False
Continuing Education Commercial Driving
You should travel slower than the posted speed when entering or exiting ramps.
  1. True
  2. False
Continuing Education Commercial Driving
If you must stop on or by a one-way or divided highway, place warning devices                 feet,                 feet, and                 feet toward the approaching traffic.
  1. 5, 15, 20
  2. 10, 100, 200
  3. 100, 200, 300
  4. 2, 4, 6
Continuing Education Commercial Driving
Empty trucks require                 stopping distances because an empty vehicle has                 traction.
  1. less, more
  2. less, less
  3. greater, more
  4. greater, less
Continuing Education Commercial Driving
When you double your speed from 20 to 40 mph the impact is                 times greater.
The braking distance is also                 times longer.
  1. 2
  2. 4
  3. 6
  4. 8
  5. 10
Continuing Education Commercial Driving
Who has the sole responsibility for the vehicle being operated?
  1. the mechanic
  2. the META instructor
  3. the person with the keys
  4. the supervisor
Continuing Education Commercial Driving
The braking distance at 55mph on dry pavement with good brakes can take about 216 feet.
  1. True
  2. False
Continuing Education Commercial Driving
What is the purpose of the emergency line ?
  1. it supplies air to the trailer air tanks.
  2. controls the emergency brakes
  3. all of the above
Continuing Education Commercial Driving
How can you test that air flows to all trailers?
  1. Use the tractor parking brake to hold the vehicle. Wait for air pressure to reach normal, then push in the red “trailer air supply” knob. Use the trailer handbrake to provide air to the service line. Go to the rear of the rig. Open the emergency line shut-off valve at the rear of the last trailer. Close the emergency line valve. Open the service line valve to check that service pressure goes through all the trailers, and then close the valve. If you do NOT hear air escaping from both lines, check that the shut-off valves on the trailer(s) and dolly(ies) are in the OPEN position. You MUST have air all the way to the back for all the brakes to work.
  2. Open the service line valve to check that service pressure goes through all the trailers
  3. Go to the rear of the rig. Open the emergency line shut-off valve at the rear of the last trailer. You should hear air escaping, showing the entire system is charged.
Continuing Education Commercial Driving
If the tractor protection valve doesn’t work properly, what would cause the emergency brake to come on ?
  1. when the air pressure falls into the pressure range specified by the manufacturer.
  2. when parking brakes are released
  3. an air hose or trailer brake leak could drain all the air from the tractor.
Continuing Education Commercial Driving
The average perception time for an alert driver is                 second at 55 mph.
  1. 1 3/4
  2. 2 3/5
  3. 5
Continuing Education Commercial Driving
At what pressure range does the trailer air supply control pop out ?
  1. 10-100 psi
  2. 10-20 psi
  3. 20-45 psi
Continuing Education Commercial Driving
The tractor protection valve is controlled by the,trailer air supply,control valve in the
cab.
  1. True
  2. False
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