CDL Practice Test (General Knowledge)
Questions And Answers 100% Verified.
How long should the mud flaps on a truck and trailer be? - correct answer. Long
enough to reach within 8 in of the roadway
If you're driving in town, how far will your recommended 12-15 second planning ahead
measure in distance? - correct answer. about a single block
A bridge formula restricts the axle weight for axles which... - correct answer. are
closer together
How soon should oil pressure rise to a normal level after starting the engine? - correct
answer. within seconds
If starting from a standstill on a hill, what's the best way to get moving? - correct answer.
partly engage the clutch before you take your right foot off the brake
Driving on a highway, it is recommended that you monitor a quarter of a mile ahead. At
highway speeds, this equates to...? - correct answer. 12-15 sec
Descending a long downgrade, which of these will help you if you have brake
difficulties? - correct answer. -escape ramp
-a turn going uphill
-an open field
(all of the above)
If you are tested and found to have a blood alcohol concentration below 0.04% but
above 0.0, what will happen? - correct answer. You will be taken out of service for 24
hrs
Federal, State, and local regulations concerning cargo weight, securement, and cover
vary widely. Which should you obey? - correct answer. all of them
What are two of the most common causes of tire fires? - correct answer. Under-
inflation and duals that touch
The minimum number of tiedowns on a load is...? - correct answer. 2
, If your load protrudes more than 4 feet beyond the rear of your vehicle, which of these
do you need in Texas? - correct answer. -a red flag at least 12X12 in (day)
-a special permit
-a burning red visible light (night)
(all of the above)
If an accident victim is bleeding heavily, what should you do to help? - correct answer.
apply direct pressure to the wound
If there is an obstacle in the road and you have a choice of directions around it, why
should you choose to go right? - correct answer. it will avoid driving into oncoming
traffic
How can you avoid temporary night blindness from other drivers' lights? - correct
answer. look at the sidelines instead
If you have to stop on a divided highway, how should you place your warning triangles?
- correct answer. At 10ft, 100ft and 200ft , all facing approaching traffic
How should you position your trailer to check the alignment of your mirrors? - correct
answer. straight with your cab
If backing with a tractor trailer, turning the wheel left will do what? - correct answer.
turn the cab left and the trailer right
If you have to stop on an undivided road, how should you set out your emergency
warning triangles? - correct answer. One front and one rear, and one nearer the
vehicle toward traffic in the same lane
If a railroad crossing has a steep approach/exit, what should you be very aware of? -
correct answer. you could get hung up on the track
When descending a hill in the state of Texas, what is it unlawful for you to do? - correct
answer. to coast down the hill
If you hit a thick fog bank, what's the best thing to do? - correct answer. stop in a safe
space and wait for it to pass
If you have a B:C type fire extinguisher, what is it suitable for dealing with? - correct
answer. electrical fires and burning liquids
What should you be aware of when passing a motorcycle? - correct answer. that your
vehicle can throw a motorcycle off course
Questions And Answers 100% Verified.
How long should the mud flaps on a truck and trailer be? - correct answer. Long
enough to reach within 8 in of the roadway
If you're driving in town, how far will your recommended 12-15 second planning ahead
measure in distance? - correct answer. about a single block
A bridge formula restricts the axle weight for axles which... - correct answer. are
closer together
How soon should oil pressure rise to a normal level after starting the engine? - correct
answer. within seconds
If starting from a standstill on a hill, what's the best way to get moving? - correct answer.
partly engage the clutch before you take your right foot off the brake
Driving on a highway, it is recommended that you monitor a quarter of a mile ahead. At
highway speeds, this equates to...? - correct answer. 12-15 sec
Descending a long downgrade, which of these will help you if you have brake
difficulties? - correct answer. -escape ramp
-a turn going uphill
-an open field
(all of the above)
If you are tested and found to have a blood alcohol concentration below 0.04% but
above 0.0, what will happen? - correct answer. You will be taken out of service for 24
hrs
Federal, State, and local regulations concerning cargo weight, securement, and cover
vary widely. Which should you obey? - correct answer. all of them
What are two of the most common causes of tire fires? - correct answer. Under-
inflation and duals that touch
The minimum number of tiedowns on a load is...? - correct answer. 2
, If your load protrudes more than 4 feet beyond the rear of your vehicle, which of these
do you need in Texas? - correct answer. -a red flag at least 12X12 in (day)
-a special permit
-a burning red visible light (night)
(all of the above)
If an accident victim is bleeding heavily, what should you do to help? - correct answer.
apply direct pressure to the wound
If there is an obstacle in the road and you have a choice of directions around it, why
should you choose to go right? - correct answer. it will avoid driving into oncoming
traffic
How can you avoid temporary night blindness from other drivers' lights? - correct
answer. look at the sidelines instead
If you have to stop on a divided highway, how should you place your warning triangles?
- correct answer. At 10ft, 100ft and 200ft , all facing approaching traffic
How should you position your trailer to check the alignment of your mirrors? - correct
answer. straight with your cab
If backing with a tractor trailer, turning the wheel left will do what? - correct answer.
turn the cab left and the trailer right
If you have to stop on an undivided road, how should you set out your emergency
warning triangles? - correct answer. One front and one rear, and one nearer the
vehicle toward traffic in the same lane
If a railroad crossing has a steep approach/exit, what should you be very aware of? -
correct answer. you could get hung up on the track
When descending a hill in the state of Texas, what is it unlawful for you to do? - correct
answer. to coast down the hill
If you hit a thick fog bank, what's the best thing to do? - correct answer. stop in a safe
space and wait for it to pass
If you have a B:C type fire extinguisher, what is it suitable for dealing with? - correct
answer. electrical fires and burning liquids
What should you be aware of when passing a motorcycle? - correct answer. that your
vehicle can throw a motorcycle off course
