Knowledge Test Class B - Maryland Cdl

1 . When performing a pre-trip inspection and looking into the fifth wheel gap, you should:

Make sure there is a gap between the kingpin and the locking jaws. Make sure the locking jaws are fully closed around the kingpin. Make sure the locking jaws are loose. Click Here Full Cheat Sheet

2 . Air brakes are:

An effective tool for stopping large vehicles. Prohibited on large vehicles. Only effective in poor weather. A tool to improve fuel efficiency. Take a FREE Practice Test Now

3 . The radiator cap:

Should not be removed when the coolant is hot. Can be removed when the coolant is hot. Should be cool to the touch under normal driving conditions. Take a FREE Practice Test Now

4 . An Anti-Lock Braking System (ABS):

Is not available for most trucks. Is not helpful in most situations. Is required on newer trucks. Take a FREE Practice Test Now

5 . Which of the following is not a type of retarder?

Exhaust Engine Air Electric Click Here Full Cheat Sheet

6 . ABS allows you to:

Drive faster. Brake harder. Stay in control when stopping. Take a FREE Practice Test Now

7 . A vehicle stopped at a green light may indicate that the driver:

Is impaired. Is colorblind. Does not know the rules of the road. Is very patient. Take a FREE Practice Test Now

8 . When traveling down a downgrade, the speed of a vehicle will likely:

Decrease. Stay the same. Increase. Take a FREE Practice Test Now

9 . When slowing down, you should ____ to warn other drivers

Use a turn signal Sound your horn Tap your brakes Click Here Full Cheat Sheet

10 . 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

11 . Hanging meat:

Should never be transported by trailer. Can be an unstable load. Must be approved by the Environmental Protection Agency (EPA). Take a FREE Practice Test Now

12 . Which of the following is not a warning sign of fatigue?

Frequent blinking Rubbing your eyes Missing exits or traffic signs Staying within your lane Take a FREE Practice Test Now

13 . How many daily hours of sleep does an adult need to maintain alertness?

One to two hours Three to four hours Five to six hours Eight to nine hours Click Here Full Cheat Sheet

14 . A second conviction of driving a CMV with a blood alcohol concentration (BAC) of 0.04 percent or more will result in a penalty of:

Losing your CDL for one year. Losing your CDL for five years. Losing your CDL for life. Take a FREE Practice Test Now

15 . How much water must be present for a vehicle to hydroplane?

Usually several inches A good amount, such as a large puddle A small amount Take a FREE Practice Test Now

16 . A vehicle equipped with an Anti-Lock Braking System (ABS) can be identified by:

A sticker on the control panel. A yellow lamp on the instrument panel. The letters "ABS" on the brake pedal. A metal plate on the inside of the driver’s side door. Take a FREE Practice Test Now

17 . If making a tight turn, the operator of a CMV should:

Be able to drive as fast as the driver of a car. Not be concerned about speed, but focus on the road. Warn drivers behind by braking early and slowing gradually. Click Here Full Cheat Sheet

18 . While driving, you can:

Read, but not send, a text message. Send, but not read, a text message. Read and send text messages. Not read or send text messages. Take a FREE Practice Test Now

19 . Cargo on flatbed trailers should be:

Tied down. Glued down. Left loose. Pushed to one side. Take a FREE Practice Test Now

20 . What color is the low air pressure warning light?

Green Orange Red Purple Take a FREE Practice Test Now

21 . When backing, you should:

Move quickly to get out of the way of other drivers. Try not to use your mirrors. Start from any position. Use a helper, if possible. Click Here Full Cheat Sheet

22 . When driving, how can you maintain alertness?

Keep cool by using the air conditioner or opening a window. Eat a lot of heavy foods. Avoid stopping. Take a FREE Practice Test Now

23 . If confronted by an aggressive driver, you should:

Keep your vehicle in front of them. Make eye contact with them Ignore their gestures. Take a FREE Practice Test Now

24 . If planning to change lanes, your mirrors should:

Not be checked. Be checked as usual. Be checked more often than usual. Take a FREE Practice Test Now

25 . How much water is needed on a road surface for a vehicle to hydroplane?

Usually several inches A good amount, such as a large puddle A small amount No water Click Here Full Cheat Sheet

26 . If feeling tired while driving, it is best to:

Take a pep pill. Get some rest. Continue driving. 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 . The air storage tanks:

Hold only enough air for one braking cycle. Hold enough air for brakes to be used several times if the compressor stops working. Do not hold air unless there is an emergency. Hold enough air for more than 1,000 braking cycles. Take a FREE Practice Test Now

28 . Regardless the size of the cargo, it should be secured by at least ____ tie-down(s).

One Two Three Four Take a FREE Practice Test Now

29 . When changing lanes:

You should not use your mirrors. You should use your mirrors. You should not use your turn signals. Click Here Full Cheat Sheet

30 . A liver can process about ____ per hour.

One alcoholic drink Two alcoholic drinks Three alcoholic drinks Take a FREE Practice Test Now

31 . 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

32 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:

Air pressure falls below 45 psi. Air pressure falls below 20 psi. Driving downhill. Driving uphill. Take a FREE Practice Test Now

33 . What is a drawback of retarders?

They may not be permitted everywhere. They can help to slow a vehicle. They cannot be turned off. Click Here Full Cheat Sheet

34 . If driving through flowing water or a large puddle, you should:

Increase your speed. Gently apply the brakes. Try to stop in the water. Take a FREE Practice Test Now

35 . When braking while ABS is activated, you should:

Pump the brake pedal. Brake as you normally would. Brake harder than you normally would. Brake softer than you normally would. Take a FREE Practice Test Now

36 . When traveling with cargo, you must make sure the cargo is secure:

No more than two times. Every 150 miles or three hours of driving. Only after traveling up a hill. Only after coming to a hard stop. Take a FREE Practice Test Now

37 . Move over laws require:

Drivers to move into lanes that are not next to stopped law enforcement vehicles. People to sit on the edge of their seats while in moving vehicles. Vehicles to stop before approaching a law enforcement vehicle pulled over on the side of a road Click Here Full Cheat Sheet

38 . 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

39 . If driving in extremely hot weather and the air pressure in your tires is too high, you should:

Continue driving. Remove air from the tire. Let the tires cool before continuing to drive. Take a FREE Practice Test Now

40 . Improperly loaded cargo:

Can be safer than properly loaded cargo. Can be a hazard. Can improve fuel efficiency. Take a FREE Practice Test Now

41 . Retreaded tires:

May be used on the front axle of a school bus. May be used on the rear axles of a school bus. Cannot be used on a school bus. Click Here Full Cheat Sheet

42 . Which of the following is an indication of standing water on the roadway?

Tire splashes Portions of the pavement that are dry Leaves on the road Take a FREE Practice Test Now

43 . When traveling in heavy traffic, the safest driving speed is:

The posted speed limit. The speed of surrounding traffic. A speed much slower than the flow of surrounding traffic. Take a FREE Practice Test Now

44 . When taking a driving test:

You must supply the same type of vehicle for which you will require a CDL. You may supply any type of vehicle, even if it is not the type of vehicle for which you will be using with the CDL. The testing station will supply the vehicle. Take a FREE Practice Test Now

45 . In icy conditions, a retarder should be:

Turned on. Turned off. Only used on the rear wheels. Click Here Full Cheat Sheet

46 . How many daily hours of sleep does an adult need to maintain alertness?

Six to seven Seven to eight Eight to nine Take a FREE Practice Test Now

47 . About how many drinks does it take for a 200-pound person to reach a 0.02 percent blood alcohol concentration (BAC)?

One Two Three Four Take a FREE Practice Test Now

48 . When stopping in an emergency situation, you should:

Veer your trailer to the right and stop. Stop in a straight line. Veer your trailer to the left and stop. Take a FREE Practice Test Now

49 . When starting a vehicle with dual air brakes, pressure of ____ should be built up in the system before it is driven.

10 psi 25 psi 100 psi 200 psi Click Here Full Cheat Sheet

50 . 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 Take a FREE Practice Test Now