Texas CDL: General Knowledge
Merging onto a road is safest if you? –
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? –
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? –
Steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
How does vehicle weight effect stopping? –
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? –
Make turns as gently as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? –
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? –
Stay off the brakes until the vehicle has slowed down.
After starting the engine –
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? –
Use the parking brake to hold the vehicle until the clutch engages.
Which of these statements is true about speed management? –
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? –
In the pouch on the drivers door or in the seat.
You should use your mirrors to check? –
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... –
Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? –
Brush
Which of these statements about causes of vehicle fires are true? –
Poor trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to –
Help slow the vehicle while driving to reduce brake wear.
Which if these is usually true about driving in hot weather? –
You should check tire mounting and pressure before driving.
Which of these is usually true about driving in tunnels? –
There maybe crosswinds when exiting
When driving thru work zones you should –
Watch for sharp pavement drop offs
When passing another vehicle, pedestrian, or bicyclist you should assume that –
They may move into your traffic lane.
If you are not sure what to use to put out a hazardous material fire you should –
Wait for qualified fire fighters
What should you do when your vehicle hydroplanes –
Release the accelerator
Which of these statements about brakes are true? –
The heavier a vehicle or faster it is moving the more heat the brakes have to
absorb to stop.
Which of these is true regarding the use of drugs while driving? –
Prescription drugs are allowed if the drug will not affect safe driving ability.
You are driving a new truck with a Manuel transmission, what gear will you probably
have to use to take a long steep down grade hill? –
A lower gear than you would use to climb the hill.
Which of these statements about certain type of cargo is true? –
Unstable loads such as having meat or livestock
Which of these statements about marking a stopped vehicle is true? –
Merging onto a road is safest if you? –
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? –
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? –
Steering wheel play of more than 10 degrees (2 inches on a 20 inch wheel)
How does vehicle weight effect stopping? –
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? –
Make turns as gently as possible
Which of these is NOT a good rule when caring for injuries at an accident scene? –
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? –
Stay off the brakes until the vehicle has slowed down.
After starting the engine –
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? –
Use the parking brake to hold the vehicle until the clutch engages.
Which of these statements is true about speed management? –
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? –
In the pouch on the drivers door or in the seat.
You should use your mirrors to check? –
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... –
Are often wider than other vehicles.
Which of these would probably not help if your windshield were covered in ice? –
Brush
Which of these statements about causes of vehicle fires are true? –
Poor trailer ventilation can cause cargo to catch fire.
The purpose of retarders is to –
Help slow the vehicle while driving to reduce brake wear.
Which if these is usually true about driving in hot weather? –
You should check tire mounting and pressure before driving.
Which of these is usually true about driving in tunnels? –
There maybe crosswinds when exiting
When driving thru work zones you should –
Watch for sharp pavement drop offs
When passing another vehicle, pedestrian, or bicyclist you should assume that –
They may move into your traffic lane.
If you are not sure what to use to put out a hazardous material fire you should –
Wait for qualified fire fighters
What should you do when your vehicle hydroplanes –
Release the accelerator
Which of these statements about brakes are true? –
The heavier a vehicle or faster it is moving the more heat the brakes have to
absorb to stop.
Which of these is true regarding the use of drugs while driving? –
Prescription drugs are allowed if the drug will not affect safe driving ability.
You are driving a new truck with a Manuel transmission, what gear will you probably
have to use to take a long steep down grade hill? –
A lower gear than you would use to climb the hill.
Which of these statements about certain type of cargo is true? –
Unstable loads such as having meat or livestock
Which of these statements about marking a stopped vehicle is true? –
