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Colorado
Colorado CDL Knowledge Test Class A 2
Answers
Q.1.
The minimum size of placards identifying hazardous materials is:
Four inches.
Six and one-quarter inches.
Nine and three-quarter inches.
10 and three-quarter inches.
Q.2.
What kind of force must emergency brakes use?
Air pressure
Mechanical
Heavy
Electrical
Q.3.
In the event of an engine fire, you should not:
Turn the engine off as soon as possible.
Keep the fire from spreading.
Open the hood.
Spray from the underside of the vehicle.
Q.4.
Failing to drain the tanks in an air brake system can result in:
Water freezing and causing brake failure.
Squishy brakes.
Too much air collecting.
Too much fuel being carried.
Q.5.
The brake pedal is part of which braking system?
The service brake system
The parking brake system
The emergency brake system
The auxiliary brake system
Q.6.
How many air storage tanks are used in an air brake system?
Two tanks
Four tanks
Six tanks
The number varies.
Q.7.
If carrying a heavy load that is slowing you down, you should:
Drive in the left lane.
Drive in the right lane.
Drive on the shoulder.
Keep the vehicle in second gear.
Q.8.
Accelerating roughly is:
Encouraged at slow speeds.
Encouraged at all speeds.
Discouraged, as it may cause damage to the vehicle.
Discouraged, as it may confuse other drivers.
Q.9.
One way to overcome the challenges of blind spots is to:
Drive faster than surrounding vehicles so no other drivers can pass you.
Drive in the left lane, allowing you to only worry about vehicles to your right.
Make frequent mirror checks and assess the positions of surrounding vehicles.
Avoid using your mirrors.
Q.10.
Once stopped as part of the stop/start maneuver, you should:
Apply the parking brake.
Keep the vehicle in first gear.
Be perpendicular to the curb.
Be blocking a driveway.
Q.11.
How could you reduce your stress while driving?
Drink a caffeinated beverage
Talk on your cell phone
Gesture at other drivers
Listen to calming music
Q.12.
When changing lanes, you should:
Move quickly before other vehicles get into the lane you wish to occupy.
Move slowly, in case another vehicle is in the lane you wish to occupy.
Not use your turn signal.
Never use the right lane.
Q.13.
Dry bulk tanks require special care because:
They have low centers of gravity.
They have high centers of gravity.
Loads are usually stable.
They are usually overloaded.
Q.14.
An item that is 40 feet long placed on a flatbed trailer should be secured by at least ____ tie-down(s).
One
Two
Three
Four
Q.15.
When it is difficult for others to see your vehicle, such as at dawn or dusk, you can help other drivers by:
Keeping your lights off.
Turning your lights on.
Driving on the shoulder.
Waving an arm out the window.
Q.16.
If you realize you may be running late to your destination, you should:
Drive faster.
Drive while using flashing lights so other road users move out of your path.
Drive at a safe speed and arrive when you arrive.
Get upset.
Q.17.
Which of the following is not a good way to reduce crashes when turning right?
Turn slowly.
Keep the tail end close to the curb.
Keep an eye on oncoming traffic.
Allow open space on your right side.
Q.18.
If feeling sleepy while driving, you should:
Press on and finish the trip.
Drive faster to arrive to your destination sooner.
Leave the road and take a nap.
Take an energy pill.
Q.19.
In general, if you are convicted of a traffic violation in your personal car:
The convicting officer will alert your employer.
Your CDL will not be affected because the violation is on your personal license.
You should tell your employer within six months.
You must tell your employer within 30 days.
Q.20.
If you are confronted by an aggressive driver, you should:
Make eye contact with the driver.
Stay in the driver's lane.
Try to race the driver.
Ignore the driver's gestures.
Q.21.
If a vehicle is found to be over-length during a pre-trip inspection, the driver should:
Trim the length of the load.
Ask someone else to drive.
Ensure flags and lights indicating the oversize load are fastened securely.
Drive without making any changes.
Q.22.
When inspecting the exhaust system, which of the following should not cause concern?
Loose or broken exhaust pipes
Loose or broken mounting brackets
Leaking exhaust system parts
Exhaust system parts that are not rubbing against fuel system parts
Q.23.
A burning tire should be:
Covered with a tarp.
Cooled with water.
Fanned with a blanket.
Cut up with an axe.
Q.24.
What is black ice?
A thick layer of ice on the road
A thin layer of ice on the road
Ice that is black from debris on the road
Ice that is easily seen
Q.25.
Anti-Lock Braking Systems (ABS):
Reduce normal braking capacity.
Are equipped in addition to other braking systems and do not reduce normal braking power.
Are not effective on larger vehicles.
Are illegal in some states.
Q.26.
A driver should always:
Stay in the right lane.
Have an emergency plan.
Stay in the left lane.
Drive above the speed limit.
Q.27.
A sign indicating a maximum safe speed:
Is suggesting a driving speed, but vehicles may travel faster than the posted speed.
Is suggesting a speed limit to be followed only by vehicles weighing more than 26,000 pounds.
Should be followed and no vehicle should travel faster than the posted speed.
Is only applicable to automobiles.
Q.28.
When using your mirrors, you should frequently look at your tires to:
Watch for tire fires.
See if the tires are rolling properly.
See if the tread is sufficient.
Get a sense of the size of the tire in relation to other vehicles.
Q.29.
A stopped bus:
Is not a cause for concern.
Is not a concern if passengers are not unloading.
Should not be on the roadway.
Is a concern, whether passengers are visible or not.
Q.30.
When driving with a load, the driver should:
Stop and check on the cargo within the first 50 miles of the trip.
Ask other drivers about the condition of their load.
Use the side mirrors only to check on the cargo.
Not check on the cargo if it was secured properly before starting the trip.
Q.31.
When other vehicles have trouble seeing you at dawn or dusk, you can increase your visibility by:
Turning on your four-way flashers.
Honking your horn.
Turning on your headlights.
Turning on your windshield wipers.
Q.32.
What color are ABS malfunction lamps?
Orange
Yellow
Green
Blue
Q.33.
During a basic vehicle control skills test, you may be asked to:
Alley dock.
Parallel park to your right.
Parallel park to your left.
All of the above.
Q.34.
It is illegal to operate a CMV with a minimum blood alcohol content (BAC) of:
0.01 percent.
0.02 percent.
0.04 percent.
0.08 percent.
Q.35.
Some air brake systems use alcohol:
To reduce the risk of ice forming in air brake valves.
To make the compressor run more efficiently.
To lubricate parts of the braking system.
To reduce the risk of rust forming on air brake valves.
Q.36.
When exiting your vehicle, you must maintain ____ with the vehicle at all times.
One point of contact
Four points of contact
Three points of contact
Two points of contact
Q.37.
If driving in a foggy area, you should not:
Decrease your speed.
Increase your speed.
Use your low beam headlights.
Turn on your four-way flashers.
Q.38.
When checking your tires, which of the following is not an issue to correct?
Too much air pressure
Too little air pressure
Radial and bias-ply tires used together
Tread depth of at least 4/32 of an inch on the front tires
Q.39.
When checking the power steering fluid during a vehicle inspection, you will need to do each of the following, except:
Show where the power steering fluid dipstick is located.
Check for adequate power steering fluid.
Ensure that the power steering fluid level is above the full mark.
Ensure that the power steering level is above the refill mark.
Q.40.
When taking the on-road driving test, you must do all of the following, except:
Wear your safety belt.
Obey all traffic signs.
Complete the test without an accident.
Demonstrate that you can use your cell phone while driving.
Q.41.
When driving, your mirrors should:
Not be used, as they are distracting.
Not be used unless there is traffic.
Be checked regularly.
Be checked regularly, but only if it is cloudy.
Q.42.
When driving through a work zone, you should:
Slow down.
Speed up.
Use a cell phone.
Steer with one hand to keep the other hand free.
Q.43.
Overloading cargo can have negative effects on all of the following, except:
Steering.
Braking.
Speed control.
The electrical system.
Q.44.
Mirror adjustment can only be checked properly if:
The trailer is straight.
There is no trailer attached to the tractor.
The vehicle is on a slight incline.
The vehicle is on a slight decline.
Q.45.
When driving at highway speeds, you should watch the road about ____ ahead of your vehicle.
One block
100 yards
One quarter mile
One mile
Q.46.
An Anti-Lock Braking System (ABS):
Decreases your braking distance.
Increases your braking distance.
Creates a loud squeaking noise when being used.
Helps to ensure control while braking.
Q.47.
What is the number one cause of death and injury in work zones?
Speeding drivers
Careless behavior by construction workers
Drivers driving too slowly
Equipment placed in the roadway
Q.48.
Skids caused by acceleration can usually be resolved by:
Speeding up.
Taking your foot off the accelerator.
Coming to a complete stop.
Switching into a higher gear.
Q.49.
When driving a vehicle equipped with an Anti-Lock Braking System (ABS), you should:
Stop harder than you would in a vehicle not equipped with ABS.
Use extra braking force to ensure the ABS kicks in.
Brake as you would in a vehicle not equipped with ABS.
Brake with less force than you would in a vehicle not equipped with ABS.
Q.50.
What should be used to check for proper tire inflation?
A tire gauge
A tire iron
An air compressor
A lug nut
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