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Kansas CDL Double Test 2
Practice mode
Question
1
of 20
QUESTION 1 / 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.
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C
Is always easier to drive than other commercial vehicles.
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D
Does not need a special endorsement to be driven.
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QUESTION 2 / 20
If federal inspectors judge your vehicle to be unsafe, they can:
Choose one answer below.
A
Bring you to a garage to have your vehicle fixed.
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B
Formerly request that you have your vehicle's problems fixed.
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C
Call a mechanic.
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D
Pull the vehicle out-of-service until it is fixed.
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QUESTION 3 / 20
When parked on the side of the road, you should:
Choose one answer below.
A
Use only the rear flashing lights.
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B
Use one set of turn signals.
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C
Use your high beam headlights.
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D
Use your four-way flashers.
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QUESTION 4 / 20
If hydraulic brakes fail, a driver can reduce their speed by:
Choose one answer below.
A
Shifting into a higher gear.
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B
Shifting into a lower gear.
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C
Finding a hill.
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D
Letting the truck run out of gas.
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QUESTION 5 / 20
What is off-tracking?
Choose one answer below.
A
When a vehicle’s front wheels follow a different path than its rear wheels
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B
When a vehicle's wheels all follow the exact same path
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C
When a load shifts during a turn
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D
When a vehicle's wheels run over a curb during a turn
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QUESTION 6 / 20
A fatigued driver:
Choose one answer below.
A
Is extra alert.
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B
Should take over-the-counter remedies to wake them up.
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C
May make critical decisions too slowly.
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D
Is usually more conscientious than a typical driver.
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QUESTION 7 / 20
Most heavy-duty vehicles use ____ air brake systems.
Choose one answer below.
A
Single
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B
Dual
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C
Triple
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D
Quad
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QUESTION 8 / 20
The emergency brake system uses:
Choose one answer below.
A
Only parts of the parking brake system.
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B
Only parts of the service brake system.
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C
Parts of both the parking and service brake systems.
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D
Only parts unique to the emergency brake system.
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QUESTION 9 / 20
When visually checking a coupling device, you should:
Choose one answer below.
A
Look for mud on the fifth wheel.
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B
Make sure the kingpin is polished.
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C
Make sure there is a space between the upper and lower fifth wheel.
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D
Make sure the locking jaws are closed on the kingpin.
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QUESTION 10 / 20
Trailers built before 1975 are:
Choose one answer below.
A
Required to have spring brakes.
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B
Not required to have spring brakes.
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C
Unsafe to drive.
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D
Prohibited from public roadways.
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QUESTION 11 / 20
Poor weight balance:
Choose one answer below.
A
Improves a vehicle's handling.
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B
Makes handling a vehicle more difficult.
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C
Increases a driver’s ability to steer.
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D
Makes a vehicle easier to stop.
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QUESTION 12 / 20
Before a trip, you should ensure that air flows to all trailers by:
Choose one answer below.
A
Closing the rear shut-off valves and listening for escaping air.
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B
Opening the rear shut-off valves and listening for escaping air.
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C
Disconnecting air supply lines and listening for escaping air.
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D
Detaching and reattaching the rear shut-off valves.
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QUESTION 13 / 20
If the spring brakes are on, you should:
Choose one answer below.
A
Not use the brake pedal.
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B
Press the accelerator.
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C
Move the steering wheel.
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D
Be especially careful because the brakes may fail.
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QUESTION 14 / 20
To inspect slack adjusters on S-cam brakes, you need to:
Choose one answer below.
A
Park on a hill and test the brakes.
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B
Put on gloves and push in the slack adjusters.
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C
Remove the drum and look inside.
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D
Chock the wheels and disengage the parking brake.
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QUESTION 15 / 20
When checking the engine compartment:
Choose one answer below.
A
The parking brake should not be engaged.
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B
Wheels should be chocked.
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C
The engine should be running.
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D
The gearshift should be in first gear.
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QUESTION 16 / 20
How is the parking brake released?
Choose one answer below.
A
By tapping the brake pedal three times
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B
By pushing in the brake control knob
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C
By starting the vehicle
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D
By tapping the accelerator twice
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QUESTION 17 / 20
If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
Choose one answer below.
A
32 feet
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B
15 feet
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C
50 feet
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D
10 feet
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QUESTION 18 / 20
One function of the emergency air line is to:
Choose one answer below.
A
Control the emergency brakes.
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B
Flash when air pressure is below a certain psi.
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C
Allow for quick turning.
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D
Control the ability to maneuver during bad weather conditions.
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QUESTION 19 / 20
When driving through a work zone, you should:
Choose one answer below.
A
Slow down.
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B
Speed up.
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C
Use a cell phone.
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D
Steer with one hand to keep the other hand free.
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QUESTION 20 / 20
What can happen if a parking brake is used in very wet weather when temperatures are below freezing?
Choose one answer below.
A
The brakes will squeak.
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B
The brakes may freeze so the vehicle cannot move.
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C
The brakes may suddenly release by themselves.
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D
The brakes may explode.
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