E
.
Learndmv
DMV PRACTICE
Toggle navigation
Find your state
Exam types
Practice tests
Sign in
Create account
↗
This quiz has no questions yet.
← Leave quiz
District Of Columbia CDL Double Test 2
Practice mode
Question
1
of 20
QUESTION 1 / 20
If you are turning left and there are two available left turn lanes, which lane should you choose?
Choose one answer below.
A
The left lane
✓
B
The right lane
✓
C
Either lane
✓
D
Trucks should not turn where there are two left turn lanes.
✓
QUESTION 2 / 20
A danger of a large truck swerving to avoid a hazard is:
Choose one answer below.
A
The truck may miss the object.
✓
B
The truck may flip over.
✓
C
The truck may stay in the same lane.
✓
D
Other vehicles may do the same thing.
✓
QUESTION 3 / 20
If involved in a crash, basic procedures should include all of the following, except:
Choose one answer below.
A
Protecting the area.
✓
B
Notifying the proper authorities.
✓
C
Caring for the injured.
✓
D
Driving away without stopping.
✓
QUESTION 4 / 20
What is sleep debt?
Choose one answer below.
A
When you fall behind on sleep
✓
B
When you want to take a nap
✓
C
Excess sleep
✓
D
The amount of time it takes to get ready to drive after sleeping
✓
QUESTION 5 / 20
When inspecting a double or triple trailer that has more parts than a smaller tractor-trailer combination:
Choose one answer below.
A
To save time, not all parts need to be inspected.
✓
B
A driver should only inspect the first trailer and its parts.
✓
C
A driver should only inspect the rear trailer and its parts.
✓
D
A driver should inspect all parts to ensure safety.
✓
QUESTION 6 / 20
____ are the cause of more than half of all accident-related truck driver deaths.
Choose one answer below.
A
Truck rollovers
✓
B
Motorcycles
✓
C
Slippery roads
✓
D
Pedestrians
✓
QUESTION 7 / 20
Which of the following types of vehicles is most prone to the “crack-the-whip" effect?
Choose one answer below.
A
An automobile
✓
B
A three-axle tractor
✓
C
A bobtail tractor
✓
D
A triple combination
✓
QUESTION 8 / 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
✓
QUESTION 9 / 20
When starting the engine of a truck with a trailer, how can you tell if the Anti-Lock Braking System (ABS) is not working?
Choose one answer below.
A
The yellow light on the rear of the trailer will stay on.
✓
B
The red light on the trailer will flash three times and then stay on.
✓
C
All the rear lights on the trailer will flash and then shut off.
✓
D
The blue light near the driver's door will light.
✓
QUESTION 10 / 20
How can you prevent drowsiness before a trip?
Choose one answer below.
A
Get about four hours of sleep.
✓
B
Plan stopping points into your trip in advance.
✓
C
Drive alone.
✓
D
Schedule long trips at night.
✓
QUESTION 11 / 20
If a roadway is covered by fog, it is best for you to:
Choose one answer below.
A
Drive faster than usual.
✓
B
Use your high beam headlights.
✓
C
Turn off your headlights.
✓
D
Avoid driving.
✓
QUESTION 12 / 20
What is another name for the service line?
Choose one answer below.
A
The control line
✓
B
The utility line
✓
C
The open line
✓
D
The parallel line
✓
QUESTION 13 / 20
When using the controlled braking method in an emergency situation, you should:
Choose one answer below.
A
Apply the brakes as hard as possible without locking the wheels.
✓
B
Apply the brakes with about half of your usual force.
✓
C
Apply the brakes so the wheels lock.
✓
D
Apply the brakes with minimal pressure.
✓
QUESTION 14 / 20
When inspecting coupling equipment before a trip, the fifth wheel should be:
Choose one answer below.
A
Properly greased.
✓
B
Loosely mounted.
✓
C
Unlocked.
✓
D
Missing.
✓
QUESTION 15 / 20
What should you do if your vehicle gets stuck on railroad tracks?
Choose one answer below.
A
Stay in the vehicle.
✓
B
Get out of the vehicle and call for assistance.
✓
C
Continue trying to remove the vehicle from the tracks.
✓
D
Walk down the tracks to look for an oncoming train.
✓
QUESTION 16 / 20
A steering wheel should be held:
Choose one answer below.
A
With both hands.
✓
B
With one hand, keeping the other hand free for other tasks.
✓
C
With one hand at a time, alternating between hands.
✓
D
At the base of the wheel.
✓
QUESTION 17 / 20
If confronted by an aggressive driver, you should:
Choose one answer below.
A
Make eye contact with the driver.
✓
B
React to the driver's gestures.
✓
C
Challenge the driver to a road race.
✓
D
Ignore the driver, if possible.
✓
QUESTION 18 / 20
When changing lanes, you should:
Choose one answer below.
A
Move quickly, before other vehicles can enter into the lane.
✓
B
Move slowly in case another vehicle is in the lane.
✓
C
Not use a turn signal.
✓
D
Avoid the right lane.
✓
QUESTION 19 / 20
What is a danger of rolling back when you start to accelerate?
Choose one answer below.
A
The transmission may be damaged.
✓
B
The truck is not made to go backwards.
✓
C
You may hit a vehicle behind you.
✓
D
You may lose your position in traffic.
✓
QUESTION 20 / 20
During a trip, which shut-off valves should be open?
Choose one answer below.
A
All shut-off valves should be open.
✓
B
The rear shut-off valves should be open.
✓
C
All shut-off valves should be in the open position, except the rear shut-off valves.
✓
D
No shut-off valves should be open.
✓
← Previous
0 of 20 answered
Next question →
Finish & see results →