Knowledge Test Class B - Utah Cdl

1 . For safety purposes, when should you turn off a retarder?

When the roadways are slippery When you are carrying a passenger When you are carrying a heavy load When driving in heavy traffic Click Here Full Cheat Sheet

2 . The most important reason to inspect your vehicle before a trip is:

To ensure safety. To maximize gas mileage. To wake up before the drive. To fill up time. Take a FREE Practice Test Now

3 . A one-way check valve:

Drains the water and compressor oil from the air tanks. Prevents air from escaping if the air compressor has a leak. Activates the emergency brakes when there is a leak. Holds the spring brakes in position until they are used. Take a FREE Practice Test Now

4 . Tires of mismatched sizes:

May be used on a tractor. May be used on a trailer. Should be used in adverse weather conditions. Should not be used on a vehicle. Take a FREE Practice Test Now

5 . If trying to correct a drive-wheel braking skid, the driver should:

Accelerate. Countersteer. Engage the emergency brake. Click Here Full Cheat Sheet

6 . A rear tire with a tread depth of 1/32 an inch is acceptable.

True False Take a FREE Practice Test Now

7 . The minimum age someone may be to apply for a CDL is 18 years old.

True False Take a FREE Practice Test Now

8 . Which of the following statements is correct?

Rims with a missing lug nut are acceptable if there are at least four other lug nuts on the rim. A cracked lock ring is acceptable if the vehicle is being driven at speeds under 55 mph. A missing clamp is dangerous and should be corrected. Welded repairs are acceptable for wheels on rear axles. Take a FREE Practice Test Now

9 . Rough acceleration:

Is a good way to stay awake on long trips. Is distracting. Can cause mechanical damage. Should be used to prevent rust from forming. Click Here Full Cheat Sheet

10 . If a vehicle is equipped with power steering, the hoses should be checked:

For leaks. To ensure that they are still clear. To ensure that they are connected to the battery. To ensure that they contain the proper amount of play. Take a FREE Practice Test Now

11 . When backing, using another person to help guide you is not recommended.

True False Take a FREE Practice Test Now

12 . To apply for a CDL, you must be at least:

15 years old. 18 years old. 21 years old. 25 years old. Take a FREE Practice Test Now

13 . A rear tire with a tread depth of 2/32 of an inch is acceptable.

True False Click Here Full Cheat Sheet

14 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi. When tank pressure falls below 60 psi. When tank pressure falls below 10 psi. When tank pressure falls below 5 psi. Take a FREE Practice Test Now

15 . When checking tires, which of the following should not cause concern?

Too much air pressure Tread of at least 4/32 of an inch on front tires Radial and bias-ply tires used together Take a FREE Practice Test Now

16 . When stopping a manual transmission vehicle, what should you do when the engine is close to idle?

Push in the clutch. Push out the clutch. Shift into neutral. Shut off the vehicle. Take a FREE Practice Test Now

17 . After a vehicle is started, the engine oil pressure should come up to normal:

Within seconds. Within five minutes. Within three minutes. After five minutes. Click Here Full Cheat Sheet

18 . Tread depth in the major grooves on a front tire should be at least:

1/32 of an inch. 2/32 of an inch. 4/32 of an inch. 3/4 of an inch. Take a FREE Practice Test Now

19 . A CMV should:

Not have a fire extinguisher, unless it is being used to transport hazardous materials. Not have a fire extinguisher, unless it will be traveling through remote areas. Have a fire extinguisher and other emergency equipment. Take a FREE Practice Test Now

20 . What can happen if one-fourth of the leaves in a leaf spring are missing when a vehicle is inspected?

The vehicle’s driver will be allowed to drive, but only at reduced speeds. The vehicle will be put out-of-service until it is fixed. The vehicle will be fine to drive since most of the spring is in place. The driver will be asked to decrease the weight of the load. Take a FREE Practice Test Now

21 . Hanging meat as cargo is usually:

Very stable. Easy to handle. Unstable. Click Here Full Cheat Sheet

22 . When asked to complete a conventional parallel parking maneuver, you should:

Pass the parking space while backing, then pull forward into it. Pull forward past the parking space, then back into it. Pull forward into the parking space without passing it first. Back into the parking space without passing it first. Take a FREE Practice Test Now

23 . The minimum age you must be to apply for a CDL is 21.

True False Take a FREE Practice Test Now

24 . Being convicted of driving with a blood alcohol content (BAC) of 0.04 percent or more will result in the loss of your CDL for at least one year.

True False Take a FREE Practice Test Now

25 . 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 Click Here Full Cheat Sheet

26 . Drivers may use ____ red reflective warning triangles when their vehicle is stopped on the side of the road.

Two Three Five Seven 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 . Which of the following is not required safety equipment?

A fire extinguisher A liquid burning flare An axe Take a FREE Practice Test Now

28 . When checking the air and electrical lines during a vehicle inspection, all of the following should be true, except:

The air hoses are making a hissing noise. The air hoses and electrical lines are not cut. The air lines are not pinched. The air lines are not dragging against tractor parts. Take a FREE Practice Test Now

29 . Air brakes use ____ to function.

Compressed air Liquid nitrogen Carbon dioxide Click Here Full Cheat Sheet

30 . If your tractor is equipped with ABS but your trailer is not, the ABS:

Will not be effective. Will still improve your steering control. Will make jackknifing easier. Will allow others to see when you brake. Take a FREE Practice Test Now

31 . Noting the engine speed is one way to determine when to upshift.

True False Take a FREE Practice Test Now

32 . The minimum tread depth of all major grooves on tires that are not on the front of a CMV should be a minimum of:

1/32 of an inch. 2/32 of an inch. 4/32 of an inch. 3/4 of an inch. Take a FREE Practice Test Now

33 . Three red reflective triangles should be carried within the vehicle

True False Click Here Full Cheat Sheet

34 . Rough acceleration:

Can damage a vehicle. Is necessary to warm up parts of the engine. Is encouraged to improve gas mileage. Should be done on surfaces with poor traction. Take a FREE Practice Test Now

35 . Mismatched tire sizes are acceptable on the rear axles.

True False Take a FREE Practice Test Now

36 . Noting the road speed is one way to determine when to upshift.

True False Take a FREE Practice Test Now

37 . 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. Click Here Full Cheat Sheet

38 . If asked to sight-side back your vehicle into an alley, you should first:

Pull directly into the alley parking space. Turn your vehicle to the right to position yourself directly in front of the alley. Pull past the alley and stop perpendicular to the outer boundary. Pull past the alley and stop parallel to the outer boundary. Take a FREE Practice Test Now

39 . To inspect slack adjusters on S-cam brakes, you need to:

Park on a hill and test the brakes. Put on gloves and push in the slack adjusters. Remove the drum and look inside. Chock the wheels and disengage the parking brake. Take a FREE Practice Test Now

40 . The person responsible for the safe transport of cargo is the driver.

True False Take a FREE Practice Test Now

41 . If there is ice on the front of your side mirror:

You should exit the roadway. You can expect ice to be on the roadway. There will not be ice on the roadway. Click Here Full Cheat Sheet

42 . Dual tires should be in contact with each other.

True False Take a FREE Practice Test Now

43 . If a CMV driver operates a CMV with a detectable blood alcohol concentration (BAC) that is lower than 0.04 percent, they will be:

Told to stop drinking. Put out-of-service for 24 hours. Required to drive at speeds below 55 mph. Told to drive home. Take a FREE Practice Test Now

44 . What should be done shortly after a tire has been changed?

The driver should stop to make sure the lug nuts are still tight after driving for a bit. The driver should repair the brakes. The driver should deflate the tire to 10 psi. The driver should inflate the tire. Take a FREE Practice Test Now

45 . 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 Click Here Full Cheat Sheet

46 . An underloaded front axle:

Is important for smooth steering. Is encouraged as front axles are usually less strong than other axles. Is discouraged as it can cause steering problems. Is discouraged as it can improve fuel efficiency. Take a FREE Practice Test Now

47 . The person resonsible for a vehicle's safe operation is the shipper.

True False Take a FREE Practice Test Now

48 . Which of the following is acceptable?

Dual tires that do not come into contact with each other Tires of mismatched sizes if used only on short trips Retreaded tires on the front of a school bus Tires with cracks Take a FREE Practice Test Now

49 . When should mirrors be adjusted?

Before driving While driving After driving Click Here Full Cheat Sheet

50 . The most important reason to do a pre-trip inspection is that it helps ensure safety.

True False Take a FREE Practice Test Now