Colorado CDL Practice Test

#1. True or False: Federal and state laws require that drivers inspect their vehicles.

True

False

#2. You need at least ______ inch tread depth in every major groove on front tires. You need 2/32 inch on other tires.

4/32

6/32

8/32

#3. Rust around wheel nuts may mean the nuts ___________.

need to be replaced

are loose

#4. True or False: The amount of brake pressure you need to stop the vehicle will depend on the speed of the vehicle and how quickly you need to stop.

True

False

#5. Because you cannot see everything behind your vehicle, backing is __________ dangerous.

always

sometimes

never

#6. They reduce brake wear and give you another way to slow down.

Dampers

Retarders

#7. True or False: Many large vehicles have __________ mirrors that show a wider area than flat mirrors.

convex

concave

#8. There are 3 good rules for using turn signals, which of the following are included in these 3 rules.

Signal Early

Signal Continuously

Cancel Your Signal

All of these

#9. True or False: It’s OK to help out others by signaling when it is safe to pass.

True

False

#10. If you find yourself being tailgated, you can do this to reduce the chances of an accident:

Avoid quick changes

Increase your following distance

Both of these

#11. True or False: Strong winds make it difficult to stay in your lane. The problem is usually worse for heavier vehicles.

True

False

#12. Large vehicles can hit other vehicles or objects during turns because of wide turning and __________.

on-tracking

off-tracking

#13. A hazard is any road condition or other road user (driver, motorcyclist, bicyclist, and pedestrian) that is a possible __________.

nuisance

danger

#14. Every registered motor vehicle must have at least 2 mirrors, including 1 attached to the left-hand side, and located to give a clear view of the roadway to the rear for a distance of at least __________.

100 feet

200 feet

300 feet

#15. __________ is a thin layer of ice that is clear enough that you can see the road underneath it.

Clear ice

Black ice

#16. True or False: Braking in a curve is dangerous because it is easier to lock the wheels and cause a skid.

True

False

#17. __________ is the number one cause of injury and death in roadway work zones.

Alcohol

Speeding traffic

#18. True or False: You should use low beams whenever you can.

True

False

#19. Use high beams when it is safe and legal to do so. Use them when you are not within __________ of an approaching vehicle.

500 feet

1000 feet

1500 feet

#20. The 2 types of railway crossings are

passenger and commercial

passive and active

closed and open

#21. The round warning sign placed ahead of a public railroad-highway crossing is colored __________.

white on red

black on yellow

black and white

#22. True or False: Forcing an automatic transmission into a lower gear at high speed could damage the transmission and also lead to loss of all engine braking effect.

True

False

#23. The use of brakes on a long and/or steep downgrade is only a supplement to the braking effect of __________.

gravity

the engine

#24. True or False: Stab braking, can only be done in vehicles with antilock brake systems (ABS).

True

False

#25. Why do most hydraulic brake failures occur?

Loss of hydraulic pressure

Brake fade on long hills

Both of these

#26. By far the most common skid is one in which the __________ lose traction through excessive braking or acceleration.

front wheels

rear wheels

#27. __________ and duals that touch are 2 causes of tire fires.

Under-inflated tires

Gas on the road

#28. __________ causes most front-wheel skids.

Driving too fast for conditions

Over steering

#29. You may __________ drink while on duty, nor consume any intoxicating beverage, regardless of its alcohol content, within 4 hours before going on duty.

never

occasionally

#30. BAC is determined by the amount of alcohol you drink, how fast you drink it and your __________.

height

weight

tolerance

#31. True or False: Stopping is not always the safest thing to do in an emergency.

True

False

#32. When communicating HAZMAT risks, the shipper uses a shipping paper and __________-shaped hazard labels to warn dockworkers and drivers of the risk.

rectangle

square

diamond

circular

#33. __________ are signs put on the outside of a vehicle that identify the hazard class of the cargo.

Dispatches

Placards

Releases

#34. After starting, inspect the cargo and its securing devices again within the first __________ after beginning a trip. Make any adjustments needed.

10 miles

50 miles

100 miles

#35. The total weight of a single vehicle including its load.

GVW

TVW

#36. The value specified by the manufacturer as the loaded weight of a combination (articulated) vehicle.

TVW

GCWR

#37. True or False: A low center of gravity means you are more likely to tip over.

True

False

#38. __________ is used in the front, back, and/or sides of a piece of cargo to keep it from sliding.

Backing

Strapping

Blocking

#39. On flatbed trailers cargo should have at least one tie-down for each __________ of cargo.

10 feet

20 feet

25 feet

#40. True or False: There are 2 basic reasons for covering cargo, to protect people from spilled cargo and to protect the cargo from weather.

True

False

Results

#1. True or False: Federal and state laws require that drivers inspect their vehicles.

#2. You need at least ______ inch tread depth in every major groove on front tires. You need 2/32 inch on other tires.

#3. Rust around wheel nuts may mean the nuts ___________.

#4. True or False: The amount of brake pressure you need to stop the vehicle will depend on the speed of the vehicle and how quickly you need to stop.

#5. Because you cannot see everything behind your vehicle, backing is __________ dangerous.

#6. They reduce brake wear and give you another way to slow down.

#7. True or False: Many large vehicles have __________ mirrors that show a wider area than flat mirrors.

#8. There are 3 good rules for using turn signals, which of the following are included in these 3 rules.

#9. True or False: It’s OK to help out others by signaling when it is safe to pass.

#10. If you find yourself being tailgated, you can do this to reduce the chances of an accident:

#11. True or False: Strong winds make it difficult to stay in your lane. The problem is usually worse for heavier vehicles.

#12. Large vehicles can hit other vehicles or objects during turns because of wide turning and __________.

#13. A hazard is any road condition or other road user (driver, motorcyclist, bicyclist, and pedestrian) that is a possible __________.

#14. Every registered motor vehicle must have at least 2 mirrors, including 1 attached to the left-hand side, and located to give a clear view of the roadway to the rear for a distance of at least __________.

#15. __________ is a thin layer of ice that is clear enough that you can see the road underneath it.

#16. True or False: Braking in a curve is dangerous because it is easier to lock the wheels and cause a skid.

#17. __________ is the number one cause of injury and death in roadway work zones.

#18. True or False: You should use low beams whenever you can.

#19. Use high beams when it is safe and legal to do so. Use them when you are not within __________ of an approaching vehicle.

#20. The 2 types of railway crossings are

#21. The round warning sign placed ahead of a public railroad-highway crossing is colored __________.

#22. True or False: Forcing an automatic transmission into a lower gear at high speed could damage the transmission and also lead to loss of all engine braking effect.

#23. The use of brakes on a long and/or steep downgrade is only a supplement to the braking effect of __________.

#24. True or False: Stab braking, can only be done in vehicles with antilock brake systems (ABS).

#25. Why do most hydraulic brake failures occur?

#26. By far the most common skid is one in which the __________ lose traction through excessive braking or acceleration.

#27. __________ and duals that touch are 2 causes of tire fires.

#28. __________ causes most front-wheel skids.

#29. You may __________ drink while on duty, nor consume any intoxicating beverage, regardless of its alcohol content, within 4 hours before going on duty.

#30. BAC is determined by the amount of alcohol you drink, how fast you drink it and your __________.

#31. True or False: Stopping is not always the safest thing to do in an emergency.

#32. When communicating HAZMAT risks, the shipper uses a shipping paper and __________-shaped hazard labels to warn dockworkers and drivers of the risk.

#33. __________ are signs put on the outside of a vehicle that identify the hazard class of the cargo.

#34. After starting, inspect the cargo and its securing devices again within the first __________ after beginning a trip. Make any adjustments needed.

#35. The total weight of a single vehicle including its load.

#36. The value specified by the manufacturer as the loaded weight of a combination (articulated) vehicle.

#37. True or False: A low center of gravity means you are more likely to tip over.

#38. __________ is used in the front, back, and/or sides of a piece of cargo to keep it from sliding.

#39. On flatbed trailers cargo should have at least one tie-down for each __________ of cargo.

#40. True or False: There are 2 basic reasons for covering cargo, to protect people from spilled cargo and to protect the cargo from weather.