TEXAS CDL: GENERAL KNOWLEDGE
QUESTIONS AND ANSWERS LATEST VERSION
100% PASS
Merging onto a road is safest if you? - CORRECT ANSWER- 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
ANSWER- 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
ANSWER- Steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
How does vehicle weight effect stopping? - CORRECT ANSWER- Empty trucks take
longer to stop than loaded ones, but this is not always the case for buses.
When the roads are slippery you should? - CORRECT ANSWER- Make turns as gently
as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? -
CORRECT ANSWER- 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
ANSWER- Stay off the brakes until the vehicle has slowed down.
After starting the engine - CORRECT ANSWER- 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 ANSWER-
Use the parking brake to hold the vehicle until the clutch engages.
Which of these statements is true about speed management? - CORRECT ANSWER-
When the road is slippery it will take longer to stop and it will be harder to turn without
skidding.
Where must you keep shipping papers when transporting hazardous materials? -
CORRECT ANSWER- In the pouch on the drivers door or in the seat.
You should use your mirrors to check? - CORRECT ANSWER- 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 ANSWER- Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? -
CORRECT ANSWER- Brush
Which of these statements about causes of vehicle fires are true? - CORRECT
ANSWER- Poor trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to - CORRECT ANSWER- Help slow the vehicle while
driving to reduce brake wear.
Which if these is usually true about driving in hot weather? - CORRECT ANSWER- You
should check tire mounting and pressure before driving.
QUESTIONS AND ANSWERS LATEST VERSION
100% PASS
Merging onto a road is safest if you? - CORRECT ANSWER- 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
ANSWER- 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
ANSWER- Steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
How does vehicle weight effect stopping? - CORRECT ANSWER- Empty trucks take
longer to stop than loaded ones, but this is not always the case for buses.
When the roads are slippery you should? - CORRECT ANSWER- Make turns as gently
as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? -
CORRECT ANSWER- 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
ANSWER- Stay off the brakes until the vehicle has slowed down.
After starting the engine - CORRECT ANSWER- 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 ANSWER-
Use the parking brake to hold the vehicle until the clutch engages.
Which of these statements is true about speed management? - CORRECT ANSWER-
When the road is slippery it will take longer to stop and it will be harder to turn without
skidding.
Where must you keep shipping papers when transporting hazardous materials? -
CORRECT ANSWER- In the pouch on the drivers door or in the seat.
You should use your mirrors to check? - CORRECT ANSWER- 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 ANSWER- Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? -
CORRECT ANSWER- Brush
Which of these statements about causes of vehicle fires are true? - CORRECT
ANSWER- Poor trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to - CORRECT ANSWER- Help slow the vehicle while
driving to reduce brake wear.
Which if these is usually true about driving in hot weather? - CORRECT ANSWER- You
should check tire mounting and pressure before driving.
