TEXAS CDL: GENERAL KNOWLEDGE
QUESTIONS AND CORRECT
ANSWERS
When the roads are slippery you should? ✅✅CORRECT ANSW-Make turns as gently as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? ✅✅CORRECT
ANSW-Keep injured persons cool
You are driving on a straight level highway at 50mph. There are no vehicles in front of you, suddenly
a tire blows out on your vehicle, what should you do? ✅✅CORRECT ANSW-Stay off the brakes
until the vehicle has slowed down.
After starting the engine ✅✅CORRECT ANSW-The coolant temperature gauge should begin a
gradual rise to normal.
You are driving a heavy vehicle with a Manuel transmission, you have to stop the vehicle on the
shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting the
vehicle back in motion up the grade? ✅✅CORRECT ANSW-Use the parking brake to hold the
vehicle until the clutch engages.
Which of these statements is true about speed management? ✅✅CORRECT ANSW-When the
road is slippery it will take longer to stop and it will be harder to turn without skidding.
Merging onto a road is safest if you? ✅✅CORRECT ANSW-Wait for a large enough gap in traffic to
enter the road.
What three things add up to total stoping distance for your truck or bus? ✅✅CORRECT ANSW-
Perception distance, reaction distance, effective breaking distance.
You are checking your steering and exhaust system during a pre trip inspection. Which of these
problems if found should be fixed before the vehicle is driven? ✅✅CORRECT ANSW-Steering
wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
, How does vehicle weight effect stopping? ✅✅CORRECT ANSW-Empty trucks take longer to stop
than loaded ones, but this is not always the case for buses.
Where must you keep shipping papers when transporting hazardous materials? ✅✅CORRECT
ANSW-In the pouch on the drivers door or in the seat.
You should use your mirrors to check? ✅✅CORRECT ANSW-Where the rear of the vehicle is while
you are making turns.
Extra care is needed to keep your vehicle centered in your lane because commercial vehicles...
✅✅CORRECT ANSW-Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? ✅✅CORRECT
ANSW-Brush
Which of these statements about causes of vehicle fires are true? ✅✅CORRECT ANSW-Poor
trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to ✅✅CORRECT ANSW-Help slow the vehicle while driving to reduce
brake wear.
Which if these is usually true about driving in hot weather? ✅✅CORRECT ANSW-You should check
tire mounting and pressure before driving.
Which of these is usually true about driving in tunnels? ✅✅CORRECT ANSW-There maybe
crosswinds when exiting
When driving thru work zones you should ✅✅CORRECT ANSW-Watch for sharp pavement drop
offs
When passing another vehicle, pedestrian, or bicyclist you should assume that ✅✅CORRECT
ANSW-They may move into your traffic lane.
QUESTIONS AND CORRECT
ANSWERS
When the roads are slippery you should? ✅✅CORRECT ANSW-Make turns as gently as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? ✅✅CORRECT
ANSW-Keep injured persons cool
You are driving on a straight level highway at 50mph. There are no vehicles in front of you, suddenly
a tire blows out on your vehicle, what should you do? ✅✅CORRECT ANSW-Stay off the brakes
until the vehicle has slowed down.
After starting the engine ✅✅CORRECT ANSW-The coolant temperature gauge should begin a
gradual rise to normal.
You are driving a heavy vehicle with a Manuel transmission, you have to stop the vehicle on the
shoulder while driving on an uphill grade. Which of these is a good rule to follow when putting the
vehicle back in motion up the grade? ✅✅CORRECT ANSW-Use the parking brake to hold the
vehicle until the clutch engages.
Which of these statements is true about speed management? ✅✅CORRECT ANSW-When the
road is slippery it will take longer to stop and it will be harder to turn without skidding.
Merging onto a road is safest if you? ✅✅CORRECT ANSW-Wait for a large enough gap in traffic to
enter the road.
What three things add up to total stoping distance for your truck or bus? ✅✅CORRECT ANSW-
Perception distance, reaction distance, effective breaking distance.
You are checking your steering and exhaust system during a pre trip inspection. Which of these
problems if found should be fixed before the vehicle is driven? ✅✅CORRECT ANSW-Steering
wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
, How does vehicle weight effect stopping? ✅✅CORRECT ANSW-Empty trucks take longer to stop
than loaded ones, but this is not always the case for buses.
Where must you keep shipping papers when transporting hazardous materials? ✅✅CORRECT
ANSW-In the pouch on the drivers door or in the seat.
You should use your mirrors to check? ✅✅CORRECT ANSW-Where the rear of the vehicle is while
you are making turns.
Extra care is needed to keep your vehicle centered in your lane because commercial vehicles...
✅✅CORRECT ANSW-Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? ✅✅CORRECT
ANSW-Brush
Which of these statements about causes of vehicle fires are true? ✅✅CORRECT ANSW-Poor
trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to ✅✅CORRECT ANSW-Help slow the vehicle while driving to reduce
brake wear.
Which if these is usually true about driving in hot weather? ✅✅CORRECT ANSW-You should check
tire mounting and pressure before driving.
Which of these is usually true about driving in tunnels? ✅✅CORRECT ANSW-There maybe
crosswinds when exiting
When driving thru work zones you should ✅✅CORRECT ANSW-Watch for sharp pavement drop
offs
When passing another vehicle, pedestrian, or bicyclist you should assume that ✅✅CORRECT
ANSW-They may move into your traffic lane.
