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Driving Test
Colorado
Colorado CDL Knowledge Test Class A 1
Answers
Q.1.
What is Gross Vehicle Weight (GVW)?
The total weight of a vehicle and its cargo
The total weight of a vehicle before cargo
The total weight of cargo
The maximum weight allowed to be transported by a vehicle
Q.2.
If a tire fails while you are driving, you should:
Brake as hard as possible.
Release the steering wheel.
Stay off the brakes and let the vehicle slow down.
Stop on the roadway.
Q.3.
When preparing to drive in the winter, be sure to check:
The coolant level.
The defrosting and heating equipment.
The windshield wipers.
All of the above.
Q.4.
If the low pressure warning light comes on while you are driving:
Braking will only occur if there is enough air in the tanks.
You can brake 14 times before the air in the system runs out.
You should continue to drive normally and check the brake system when it is convenient.
You should continue driving, but turn the emergency flashers on to warn other motorists.
Q.5.
When driving in fog, you should:
Use the windshield wipers.
Use low beam headlights.
Use high beam headlights.
Use the air conditioning.
Q.6.
If you identify a distracted driver on the road, you should:
Follow their vehicle closely.
Try to get their attention.
Give them plenty of room.
Flash your lights at them.
Q.7.
Federal and state laws require:
Drivers to regularly inspect their vehicles.
Drivers to inspect their vehicles, but only if they believe there may be a problem.
Drivers to inspect their vehicles if planning to travel out-of-state.
Drivers to inspect their vehicles, but only if they will be transporting hazardous materials.
Q.8.
When inspecting your brakes, a slack adjuster should move ____ from where it is attached to the push rod.
At least three inches
More than two inches
Up to five inches
No more than one inch
Q.9.
To confirm that a trailer has ABS, you can:
Look under the trailer for wheel speed sensors coming from the back of the brakes.
Look under the hood for the ABS sticker.
Look at the tires.
Remove a tire and look for the ABS sensor on the axle.
Q.10.
Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to another person in a vehicle
Children on the side of the road
Construction workers on the side of the road
A person sitting on a bench waiting for a bus
Q.11.
Cargo inside a trailer:
Does not need to be secured.
Should be stacked no more than three feet high.
Should be secured to prevent movement.
Should be loaded with the heaviest items on top of lighter items.
Q.12.
To receive a hazardous materials endorsement, an applicant will be required to supply:
Their fingerprints.
Their shoe size.
A list of countries visited within the last 10 years.
Their employment history for the previous five years.
Q.13.
If driving a vehicle with a manual transmission, you can prevent your vehicle from rolling backward when starting from a stop by:
Partly engaging the clutch before removing your foot from the brake pedal.
Placing the vehicle in reverse before moving forward.
Fully engaging the clutch before removing your foot from the brake pedal.
Placing the vehicle in neutral before moving forward.
Q.14.
Pressing and releasing a brake pedal unnecessarily can:
Release air faster than it can be replaced.
Add more air to the braking system.
Make the brake pedal more sensitive.
Create a loud noise.
Q.15.
The two indicators that determine when you should upshift are:
Engine speed and road speed.
Other trucks and road conditions.
Timing and road position.
Oil pressure and air brake pressure.
Q.16.
When traveling down a downgrade, the speed of a vehicle will likely:
Decrease.
Not change.
Increase.
Match the speed of traffic.
Q.17.
To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:
Set the control to normal.
Set the control to the off position.
Set the control to neutral.
Keep the control at the halfway mark.
Q.18.
Test the low pressure warning signal:
Once a month.
Once a week.
Twice a week.
Before every trip.
Q.19.
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.20.
When only the tractor is equipped with an Anti-Lock Braking System (ABS):
There is a decreased risk of jackknifing.
There is an increased risk of jackknifing.
The brakes will not work as effectively as they would without ABS.
The brakes will become more sensitive.
Q.21.
What is a wig wag?
A type of warning system
A tube used to move air from the compressor to the tanks
A noise made by air brakes when used
A part within the braking unit that allows air to move freely
Q.22.
During a pre-trip inspection, belts in the engine compartment should be:
Loosened.
Checked for tightness.
Inspected only if they seem frayed.
Left alone and not inspected.
Q.23.
When driving through a curve during the skills test, you should:
Veer from your lane if needed to complete the curve.
Reduce your speed after entering the curve.
Refrain from looking for other vehicles while turning.
Reduce your speed before entering the curve.
Q.24.
If something is found to be unsafe during a pre-trip inspection, you should:
Continue with the trip and make an appointment with a mechanic after the trip is completed.
Let a more experienced driver use the truck.
Get the issue fixed immediately.
Not use the items found to be unsafe, but may continue driving normally.
Q.25.
Mirrors should be adjusted:
While moving.
When the trailers are straight.
When you are standing next to the vehicle.
By an assistant.
Q.26.
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.27.
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.28.
If coolant has to be added to a system without a recovery tank, you should:
Keep the vehicle running while adding coolant.
Open the radiator cap quickly.
Not use gloves to touch the radiator cap.
Wait for the engine to cool before adding coolant.
Q.29.
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.30.
A high center of gravity:
Makes a vehicle more susceptible to rollover.
Is encouraged in inclement weather.
Is required on some roads.
Improves fuel efficiency.
Q.31.
Driving in extremely hot weather:
Should not be done.
Requires you to remove oil from the engine.
Is safer with less coolant.
Can increase tire pressure.
Q.32.
Which of the following is not a sign of a person being drowsy?
Frequent blinking
Drifting from your lane
Feeling hungry
Yawning
Q.33.
A modulating control valve can control the:
Spring brakes.
Landing gear.
Air brakes.
Anti-lock braking system (ABS).
Q.34.
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.35.
Where can you find the tire load rating?
On the inside of the driver’s door
On the dashboard
On the side of each tire
Under the hood
Q.36.
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.37.
During a pre-trip inspection, what is the best method for checking your lights?
Parking near a mirror to look for a reflection
Activating the lights, then exiting the vehicle to check
Looking on the instrument panel to see if any warning lights are illuminated
Driving in traffic and waiting for other drivers to let you know your lights are out
Q.38.
During the skills test, if making a turn that requires a stop, you should:
Skid to a stop.
Stop after the stop line to get a better view.
Allow your vehicle to roll.
Keep the front wheels aimed straight ahead.
Q.39.
During exercises that are not the straight line backing exercise, you may exit your vehicle to check its position no more than:
One time.
Two times.
Three times.
Four times.
Q.40.
When transporting cargo, you should:
Accelerate quickly.
Check the load and securing devices after driving for no more than 50 miles.
Not use your mirrors to look behind your vehicle.
Keep a cell phone in your hand, in case of an emergency.
Q.41.
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.
32 feet
15 feet
50 feet
10 feet
Q.42.
Which of the following is not an activity that causes a distraction?
Adjusting the radio
Adjusting the CD player
Eating
Checking your mirrors
Q.43.
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.44.
In an emergency situation, you should:
Always respond by stopping.
Not always respond by stopping.
Never respond by swerving.
Always turn on your flashers to warn other drivers.
Q.45.
A burning tire should be:
Cooled with water.
Fanned with a blanket.
Cut up with an axe.
Covered with a tarp.
Q.46.
Where is the safety relief valve usually located?
Near the rear brake
Near the front brake
In an air tank
On the dashboard
Q.47.
Which of the following is not an example of a distracted person that motorists should be worried about?
A driver talking to a passenger in their vehicle
A child on the side of the road
A construction worker on the side of the road
A person sitting on a bench waiting for a bus
Q.48.
The suspension system:
Holds up the vehicle and its load.
Keeps the load the proper distance behind the driver’s compartment.
Maintains a safe distance between the vehicle and other vehicles.
Lightens the load for the tires.
Q.49.
If another driver is following you too closely, you should do all of the following, except:
Avoid quick changes.
Increase the distance between you and the vehicle in front of you.
Speed up.
Avoid relying on tricks to help others pass.
Q.50.
When approaching a curve during the on-road driving test, you must do all of the following, except:
Check traffic thoroughly in all directions.
Reduce your speed before entering the curve.
Keep your vehicle in its lane.
Steadily use the brakes throughout the curve.
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