Knowledge Test Class B - Oklahoma Cdl

1 . Braking mechanisms are located inside:

The fifth wheel. A brake drum. The landing gear. Click Here Full Cheat Sheet

2 . Wheel rims that have been welded should:

Be painted. Be placed on tires in the rear of the vehicle. Not be used. Take a FREE Practice Test Now

3 . Which of the following is not a type of tie-down equipment?

Ropes Straps Velcro Take a FREE Practice Test Now

4 . If you plan to transport hazardous materials, you will:

Need to obtain a hazardous materials endorsement. Need to drive while using flashing lights. Need to wear a gas mask. Take a FREE Practice Test Now

5 . When starting your vehicle, the coolant temperature should:

Not change. Increase gradually. Quickly jump from low to high. Click Here Full Cheat Sheet

6 . When loading a trailer, the heaviest cargo should be placed:

On top of the lightest parts of the cargo. Under the lightest parts of the cargo. At the rear of the trailer. Take a FREE Practice Test Now

7 . If you are driving in fog, you should not:

Turn on the four-way flashers. Slow down. Use your high beam lights. Take a FREE Practice Test Now

8 . A distracted driver:

Usually follows the rules of the road. Usually has slowed perception. Is a good person to follow. Take a FREE Practice Test Now

9 . What is a Gross Vehicle Weight Rating (GVWR)?

The value stated by the manufacturer as the loaded weight of a single vehicle The rating of a tire The rating of a combination vehicle per axle Click Here Full Cheat Sheet

10 . A steering wheel should be:

Held with one hand while the other hand rests. Held with both hands to ensure an adequate grip. Released if the vehicle is approaching a bump. Take a FREE Practice Test Now

11 . Alcohol is removed from the body:

By exercising. At a fixed rate. More quickly if the person stays awake. Take a FREE Practice Test Now

12 . You must have an air brake endorsement:

To use a vehicle with air brakes. To drive any truck with a trailer. To transport hazardous materials. Take a FREE Practice Test Now

13 . Once cargo is secured onto a vehicle:

You do not need to inspect the cargo. You should not let others inspect the cargo. You should check the cargo every 150 miles. Click Here Full Cheat Sheet

14 . On slippery roads, you should:

Accelerate and slow down frequently. Adjust your driving to match weather conditions. Tailgate other vehicles. Take a FREE Practice Test Now

15 . Blocking a load:

Is dangerous and should never be done. Helps to stabilize the load. Is only done with liquid cargo. Take a FREE Practice Test Now

16 . Backing with a trailer is dangerous because:

It is difficult to see behind the vehicle. Most trucks do not have the ability to move in reverse. Cargo may fall out of the trailer. Take a FREE Practice Test Now

17 . Most heavy trucks with manual transmissions require ____ to change gears.

Single clutching Double clutching Triple clutching Click Here Full Cheat Sheet

18 . What is the number one cause of death and injury in a work zone?

Drivers speeding Slow drivers Animals crossing the road Take a FREE Practice Test Now

19 . Rolling backward when beginning to accelerate is dangerous because:

The transmission may be damaged. The truck is not made to go backwards. You may hit a vehicle behind you. Take a FREE Practice Test Now

20 . If your vehicle is hydroplaning, you should:

Turn the steering wheel as hard as possible. Not use the brakes. Put the vehicle in reverse. Take a FREE Practice Test Now

21 . On any upgrade, gravity will:

Speed your vehicle up. Slow your vehicle down. Not impact your speed. Click Here Full Cheat Sheet

22 . When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:

The yellow light on the left rear of the trailer stays on. The red light on the right side of the trailer flashes three times. All the rear lights flash and then turn off. Take a FREE Practice Test Now

23 . You should maintain at least ____ of following distance per every 10 feet of your vehicle when you are traveling more slowly than 40 mph.

One second Two seconds Three seconds Take a FREE Practice Test Now

24 . What kind of brakes do most newer heavy-duty trucks use?

Single air brakes Dual air brakes Triple air brakes Take a FREE Practice Test Now

25 . Without the proper amount of oil in its engine:

A vehicle will have difficulty stopping. A vehicle will make quick, jerking movements while being driven. The engine may be quickly damaged. Click Here Full Cheat Sheet

26 . When pulled over to the side of the road, you should:

Rely on your taillights to alert other motorists to your presence. Not worry about other motorists. Use your four-way emergency flashers to alert other motorists to your presence. Take a FREE Practice Test Now

Study tip: Reduce your study time from hours to minutes with a DMV exam “Cheat Sheet” 99.2% of people who use the cheat sheet pass the FIRST TIME Click Here Full Cheat Sheet

27 . What is axle weight?

The weight transmitted to the ground by one axle The weight of one axle How much weight an axle can hold Take a FREE Practice Test Now

28 . What is the average driver’s reaction time?

1/16 of a second 1/8 of a second 3/4 of a second Take a FREE Practice Test Now

29 . A jogger wearing a stereo headset:

Is probably aware of what is happening around them. May not be aware of what is happening around them. Can hear the sounds of traffic. Click Here Full Cheat Sheet

30 . Interstate carriers must have what information affixed to the commercial motor vehicles in their fleet?

Trade name Width of the truck Length of the truck Take a FREE Practice Test Now

31 . After two violations of any state law regarding hand-held mobile phone use:

You will need to cancel your mobile phone service. Your CDL will be disqualified. You will be required to drive 10 mph under the posted speed limit for a period of time. Take a FREE Practice Test Now

32 . What should be done to prevent an engine fire from spreading?

Leave the engine turned on Turn the engine turned off Open the hood Take a FREE Practice Test Now

33 . If you are confronted by an aggressive driver, you should:

Make eye contact. Ignore their gestures. Try to race. Click Here Full Cheat Sheet

34 . Before beginning to drive downhill, you should:

Take your vehicle out of gear. Shift into a lower gear. Move into the left lane. Take a FREE Practice Test Now

35 . Interstate carriers must have what information affixed to both sides of a CMV?

USDOT number Model number of the truck Destination Take a FREE Practice Test Now

36 . If you see taillights ahead while you are driving in fog:

The lights may not indicate where the road is as the vehicle may have pulled off the roadway. You can assume the vehicle ahead is on the road. It may be an optical illusion. Take a FREE Practice Test Now

37 . A cardboard box on the roadway:

Should be expected to be on the roadway. Is usually empty and harmless. Could contain a heavy object that could damage vehicles. Click Here Full Cheat Sheet

38 . When stopping, the brake pedal should be:

Pressed down gradually. Pressed down quickly. Pressed down repeatedly, but not held down continuously. Take a FREE Practice Test Now

39 . If you identify a distracted driver on the road, you should:

Tailgate them. Flash your lights at them. Give them plenty of space. Take a FREE Practice Test Now

40 . When using a turn signal, you should not:

Signal early. Signal continuously. Allow the turn signal to stay on long after the turn has been completed. Take a FREE Practice Test Now

41 . When asked to make a lane change during the driving test, you should:

Make the change as soon as the examiner asks, without looking. Use your turn signal and change lanes when safe. Make the lane change as quickly as possible, even if that means cutting off another driver. Click Here Full Cheat Sheet

42 . When driving down a steep hill, your primary source of braking should be:

Engine adjustments. The brakes. The hand brake. Take a FREE Practice Test Now

43 . Radial and bias-ply tires:

Should be used together. Should be used together on the front of a vehicle. Should not be used together. Take a FREE Practice Test Now

44 . When leaving your vehicle unattended:

The parking brake should be used. The parking brake only needs to be used if the vehicle is parked on a slope. The parking brake should not be used, as it can damage the tires. Take a FREE Practice Test Now

45 . If driving so slowly that you could impede other drivers, you should:

Drive in the left lane. Drive while using your four-way flashers. Drive without using any lights. Click Here Full Cheat Sheet

46 . If the coolant temperature gauge goes above the highest safe temperature, you should:

Continue to drive. Pull over and figure out what's wrong. Run the air conditioner. Take a FREE Practice Test Now

47 . Once they have begun to drive after a tire on their vehicle has been changed, a driver should stop after a short distance to:

Ensure that the lug nuts are still tight. Ensure that the tire is wearing evenly. Ensure that the air pressure of the tire is still acceptable. Take a FREE Practice Test Now

48 . Regulations regarding commercial vehicle weight and load securement may vary from state to state. Regarding these regulations:

The laws of the state where the trip originated take precedence. The laws of the state in which the vehicle is physically located take precedence. The driver can choose which state’s laws to follow. Take a FREE Practice Test Now

49 . Livestock:

Should never be carried on a trailer. Should be placed in the front of a trailer. Can create unstable driving conditions. Click Here Full Cheat Sheet

50 . To make a stop in a vehicle equipped with air brakes, the driver should:

Press the brake pedal down. Lift the brake pedal up. Pull out the air brake knob. Take a FREE Practice Test Now