E
.
Learndmv
DMV PRACTICE
Toggle navigation
Find your state
Exam types
Practice tests
Sign in
Create account
↗
← Leave quiz
Colorado CDL Double Test 2
Practice mode
Question
1
of 20
QUESTION 1 / 20
If driving a vehicle with a manual transmission, you can prevent your vehicle from rolling backward when starting from a stop by:
Choose one answer below.
A
Partly engaging the clutch before removing your foot from the brake pedal.
✓
B
Placing the vehicle in reverse before moving forward.
✓
C
Fully engaging the clutch before removing your foot from the brake pedal.
✓
D
Placing the vehicle in neutral before moving forward.
✓
QUESTION 2 / 20
If an approaching driver is using their high beam headlights, you should:
Choose one answer below.
A
Look directly at the headlights.
✓
B
Flash your high beam lights to remind the driver to switch to their low beams.
✓
C
Look to the right side of your lane until the vehicle has passed.
✓
D
Pull to the side of the road until the vehicle has passed.
✓
QUESTION 3 / 20
Hydraulic brakes can fail for one of two reasons. Which of the following is one of those reasons?
Choose one answer below.
A
There is a loss of hydraulic pressure.
✓
B
You are driving uphill.
✓
C
The brakes get too cold.
✓
D
The brakes are used too much in one day.
✓
QUESTION 4 / 20
Starting in which year were newly manufactured trailers required to have ABS?
Choose one answer below.
A
1972
✓
B
1987
✓
C
1998
✓
D
2004
✓
QUESTION 5 / 20
An Anti-Lock Braking System (ABS):
Choose one answer below.
A
Allows wheels to lock up.
✓
B
Prevents wheels from locking up.
✓
C
Makes it easier to turn a large vehicle.
✓
D
Assists with the operation of brake lights.
✓
QUESTION 6 / 20
Proper coupling technique:
Choose one answer below.
A
Is the same on all vehicles.
✓
B
Is essential to the safe operation of a vehicle.
✓
C
Includes ensuring that the fifth wheel plate is not greased.
✓
D
Can be learned over time.
✓
QUESTION 7 / 20
Which of the following is not an indication of damaged brakes?
Choose one answer below.
A
Cracked drums
✓
B
Shoes with oil or grease on them
✓
C
Shoes worn thinly
✓
D
Pads free of oil or grease
✓
QUESTION 8 / 20
To confirm that a trailer has ABS, you can:
Choose one answer below.
A
Look under the trailer for wheel speed sensors coming from the back of the brakes.
✓
B
Look under the hood for the ABS sticker.
✓
C
Look at the tires.
✓
D
Remove a tire and look for the ABS sensor on the axle.
✓
QUESTION 9 / 20
If the air pressure warning light comes on, you should:
Choose one answer below.
A
Continue driving normally.
✓
B
Activate your hazard lights and continue driving.
✓
C
Call the local law enforcement agency.
✓
D
Safely exit the roadway and stop.
✓
QUESTION 10 / 20
Steering that feels heavy is often a sign of:
Choose one answer below.
A
Rear tire failure.
✓
B
Front tire failure.
✓
C
A shifting load.
✓
D
The coolant overheating.
✓
QUESTION 11 / 20
Rough acceleration:
Choose one answer below.
A
Can damage a vehicle.
✓
B
Is necessary to warm up parts of the engine.
✓
C
Is encouraged to improve gas mileage.
✓
D
Should be done on surfaces with poor traction.
✓
QUESTION 12 / 20
If pulled off to the side of the road, you should:
Choose one answer below.
A
Allow your taillights to alert other motorists.
✓
B
Turn on your emergency flashers to warn other motorists.
✓
C
Keep your lights off to avoid distracting other motorists.
✓
D
Keep your door open to warn other motorists.
✓
QUESTION 13 / 20
Trailers with low underneath clearance may be difficult to drive:
Choose one answer below.
A
On interstate highways.
✓
B
Over railroad crossings.
✓
C
On dirt roads.
✓
D
At the posted speed limit.
✓
QUESTION 14 / 20
The trailer hand valve:
Choose one answer below.
A
Should always be used for parking.
✓
B
Should only be used for parking on a downhill.
✓
C
Should never be used for parking.
✓
D
Should only be used when transporting cargo.
✓
QUESTION 15 / 20
During a static leakage test, the maximum leakage rate for a triple combination vehicle with air brakes is ____ in a minute.
Choose one answer below.
A
3 psi
✓
B
5 psi
✓
C
7 psi
✓
D
9 psi
✓
QUESTION 16 / 20
A double or triple:
Choose one answer below.
A
Is usually able to be driven faster than a straight truck.
✓
B
Is usually less stable than other smaller commercial vehicles.
✓
C
Is always easier to drive than other commercial vehicles.
✓
D
Does not need a special endorsement to be driven.
✓
QUESTION 17 / 20
Pressing and releasing a brake pedal unnecessarily can:
Choose one answer below.
A
Release air faster than it can be replaced.
✓
B
Add more air to the braking system.
✓
C
Make the brake pedal more sensitive.
✓
D
Create a loud noise.
✓
QUESTION 18 / 20
Emergency equipment, such as a fire extinguisher, is:
Choose one answer below.
A
Only needed for vehicles transporting hazardous materials.
✓
B
Only needed for interstate travel.
✓
C
Required.
✓
D
Only required when transporting passengers.
✓
QUESTION 19 / 20
Which of the following is most likely to result in hydroplaning?
Choose one answer below.
A
Using tires with worn tread
✓
B
Using properly inflated tires
✓
C
Using new tires
✓
D
Traveling at speeds under 10 mph
✓
QUESTION 20 / 20
Driving a combination vehicle ____ than driving a single vehicle.
Choose one answer below.
A
Is easier
✓
B
Requires more driving skill
✓
C
Is better for training
✓
D
Is safer in inclement weather
✓
← Previous
0 of 20 answered
Next question →
Finish & see results →