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Ohio
Ohio CDL Knowledge Test Class A 1
Answers
Q.1.
Which of the following is not a cause of hydraulic brake failure?
Loss of hydraulic pressure
Brake fade on long hills
Downshifting
Q.2.
When backing a truck, you should:
Only use the side mirrors on the driver’s side of the vehicle.
Use both side mirrors.
Not use a helper.
Q.3.
To prevent your vehicle from rolling backward when beginning to move, you can:
Partly engage the clutch before taking your foot off the brake pedal.
Place the vehicle in second gear.
Use the parking brake when stopping.
Q.4.
Rust around wheel nuts may mean:
It has rained recently.
The nuts could be loose.
The tires should be replaced.
Q.5.
If you realize you may be running late to your destination, you should:
Speed up.
Get upset.
Deal with it and drive at a safe speed.
Q.6.
Regrooved tires:
Should not be used on any vehicle.
Should not be used on the front of a bus.
Should not be used on trucks hauling gravel.
Q.7.
What tells you how much pressure is in your vehicle's air tanks?
The supply pressure gauge
The ABS malfunction lamp
The tractor protection valve
Q.8.
What should you do if your vehicle gets stuck on railroad tracks?
Stay in the vehicle.
Get out of the vehicle and call for assistance.
Continue trying to get your vehicle off the tracks until you are successful.
Q.9.
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.
Q.10.
Air tank drains:
Should not be used in cold weather.
Are helpful to remove water and oil from the air tanks.
Are used to move air to the brakes.
Q.11.
When coming to a stop, you should apply the brake pedal by:
Pushing down gradually.
Pushing down quickly.
Pulling up gradually.
Q.12.
____ is an example of required emergency equipment.
A spare electrical fuse
A loud horn
A battery-operated flashlight
Q.13.
If your brakes fail while you are traveling downhill and there is no available escape ramp, you should:
Keep pumping the brakes.
Turn the vehicle off.
Drive into an open field.
Q.14.
When near a railroad crossing:
You should expect to hear every approaching train.
You may not hear a train, even if one is approaching.
You will hear two short blasts of a train's horn if a train is approaching.
Q.15.
In a dual air brake system:
Air tanks are shared between both systems.
Each system has its own air tanks.
You must designate which system you are using.
Q.16.
Slow down and be extra careful:
When traveling in normal traffic.
When driving on dry pavement.
When approaching a work zone.
Q.17.
Which of the following determines your blood alcohol concentration (BAC)?
How much you drink
How frequently you drink
The temperature of the drink
Q.18.
If an aggressive driver is involved in a crash down the road, you should:
Pull over and yell at them.
Stop after the crash scene and report the other driver’s behavior to police.
Block the driver in with your vehicle.
Q.19.
When starting an engine, oil pressure should come up to a normal level:
Within seconds.
Within five minutes.
After about three minutes.
Q.20.
How many daily hours of sleep does an adult need to maintain alertness?
Six to seven
Seven to eight
Eight to nine
Four to five
Q.21.
When pulled off on the side of the road:
A driver should keep the driver’s side door open.
A driver should turn on the emergency flashers.
The driver should wave their arms.
Q.22.
If the spring brakes are on, you should:
Not use the brake pedal.
Press the accelerator.
Move the steering wheel.
Q.23.
During the driving test, the examiner will be scoring you on:
How well-spoken you are.
How quickly you arrive to your destination.
General driving behavior.
Q.24.
If turning to avoid a hazard:
You should brake hard.
You should not brake as it may cause the wheels to lock.
You should turn very sharply.
Q.25.
Pre-trip inspections are:
Recommended.
Needed only for trips longer than 100 miles in length.
Required by law.
Q.26.
When exiting a vehicle, it is important to maintain ____ with your vehicle at all times.
Three points of contact
Four points of contact
Two points of contact
Q.27.
When braking with ABS, you should:
Pump the brake pedal.
Brake normally.
Brake harder than you would with a different braking system.
Q.28.
If you are turning left at an intersection where there are two available turn lanes:
It is best to use the right lane.
It doesn’t matter which lane you use.
It is best to use the left lane.
Q.29.
An empty truck:
Requires a shorter stopping distance than a full truck.
Requires a longer stopping distance than a full truck.
Takes the same distance to stop as a full truck.
Q.30.
Your CDL will be revoked if:
You want to add an endorsement.
Your privilege to operate your personal vehicle is revoked.
You have not paid a toll.
Q.31.
What does an air compressor do in an air brake system?
It pumps air into the air storage tanks.
It fills the tires.
It moves air to the back of the truck.
Q.32.
Hydroplaning usually occurs:
When tires are properly inflated.
When driving at speeds slower than 15 mph.
In areas where water collects on the road.
Q.33.
If you are disqualified from driving:
Your employer will be notified by the state.
You must notify your employer within two business days.
You must notify your employer within a month.
Q.34.
When operating a vehicle with a dual air brake system, the driver should:
Let the vehicle warm up before driving to ensure that the fuel reaches the engine.
Let the air compressor build up a minimum of 100 psi pressure in the primary and secondary systems before driving.
Begin driving just after the vehicle starts.
Q.35.
Blocking a load:
Is dangerous and should never be done.
Is essential to preventing cargo from moving in transit.
Is only done with liquid loads.
Q.36.
If you have more than one license:
You likely won’t be caught.
You should not tell anyone.
You may get caught through the states' shared computer network.
Q.37.
Before a trip, you should make sure that:
The brake pedal sticks.
The gas pedal is loose.
The grooved pedal surface has not been smoothed out.
Q.38.
To warn drivers behind you that you will be slowing down, you should:
Turn on the right turn signal followed by the left turn signal.
Tap your brake pedal a few times to illuminate your brake lights.
Swerve from side to side to get their attention.
Q.39.
Which of the following is acceptable if found during a pre-trip inspection?
Mismatched tire sizes
Tread of 3/32 of an inch in the grooves of the front tires
Tires manufactured by different makers
Q.40.
When starting a vehicle, warning lights and buzzers:
Should not light up or sound.
Should turn on and shut off quickly.
Should turn on and remain on.
Q.41.
To change lanes, you should:
Move quickly.
Move slowly and smoothly.
Hold down your horn.
Q.42.
If unable to tell if the road is becoming icy and slippery, a driver:
Should try guessing.
May open their window and feel the front of the side mirror for ice.
Should look at the road closely.
Q.43.
When should a driver sign a vehicle inspection report?
After every trip
If noted defects are repaired
After each fueling
Q.44.
While driving, ____ generally holds spring brakes in place.
Air pressure
Electricity
Gasoline
Q.45.
Before attempting to put out an engine fire:
The hood should be opened.
The engine should be turned off.
The accelerator should be depressed to use up the remaining fuel.
Q.46.
The use of a hand-held mobile device while driving is:
Prohibited.
Acceptable if weather conditions are clear.
Permitted if use is work-related.
Q.47.
Compared to talking on a cell phone while driving, texting while driving is:
Much safer.
Just as safe.
More dangerous.
Q.48.
People working on a disabled vehicle:
Are probably aware of the roadway.
May be distracted by the repair and not pay attention to the roadway.
Are exempt from traffic laws.
Q.49.
When applying your brakes, the vehicle should:
Pull to one side.
Squeak.
Not pull to either side.
Q.50.
A ramp's posted speed limit:
Is suitable for all vehicles.
Is suitable for some vehicles, but may be too fast for a large CMV.
Is just a suggestion and may be exceeded.
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