Knowledge Test Class B - Delaware Cdl

1 . In cool weather, as the temperature begins to rise and ice begins to melt:

It is usually safe to drive. The road will become even more slippery. Traction will increase. Click Here Full Cheat Sheet

2 . When braking with ABS, you should:

Pump the brake pedal. Brake normally. Brake harder than you would with a different braking system. Take a FREE Practice Test Now

3 . During the driving test, when asked to make a lane change:

You should not be concerned with other motorists. You should use your turn signal and change lanes when safe. You should make the lane change as quickly as possible, even if that means cutting off another driver. Take a FREE Practice Test Now

4 . Sending text messages while driving:

May be done if the messages are short. Is encouraged. Is permitted if you are asking a question of your employer. Is not permitted. Take a FREE Practice Test Now

5 . Drivers trapped behind a slow-moving vehicle often:

Follow the vehicle too closely. Allow the vehicle plenty of space. Are happy with the speed of travel. Click Here Full Cheat Sheet

6 . After driving over a bridge during the driving skills test, you may be asked to recall.

The posted weight limit. The color of a sign you just passed. How many lanes of traffic there were on the bridge. If there was a crosswalk on the bridge. Take a FREE Practice Test Now

7 . To change lanes, you should:

Move quickly. Move slowly and smoothly. Hold down your horn. Take a FREE Practice Test Now

8 . During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:

3 psi in one minute. 6 psi in one minute. 8 psi in one minute. 4 psi in one minute. Take a FREE Practice Test Now

9 . If a tire rim is damaged, it should be:

Left on the vehicle. Welded to repair the damage. Replaced. Put on the axle farthest from the driver. Click Here Full Cheat Sheet

10 . Maintaining a cushion of space between your vehicle and the vehicle ahead is:

Not encouraged, as it slows the flow of traffic. Encouraged, as it allows you time to react to unexpected hazards. Only encouraged if you are traveling with a passenger. Take a FREE Practice Test Now

11 . 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

12 . Looking far ahead of your vehicle while driving is:

Discouraged, as there is little you can do about something far up the road. Encouraged to help you identify hazards as early as possible. Not permitted. Take a FREE Practice Test Now

13 . Of the following, which is not a way to prevent drowsiness during a trip?

Getting an adequate amount of sleep before driving Traveling with a passenger Scheduling trips during hours when you would not normally be awake Avoiding medications that may cause drowsiness Click Here Full Cheat Sheet

14 . While still below the legal limit, a driver operating a CMV with a detectable amount of alcohol in their system will:

Result in an out-of-service order for two hours. Result in an out-of-service order for 10 hours. Result in an out-of-service order for 24 hours. Take a FREE Practice Test Now

15 . To avoid becoming an aggressive driver, you should:

Plan trips without allocating extra time for traffic. Tailgate. Drive slowly in the left lane. Not make gestures to other drivers. Take a FREE Practice Test Now

16 . Passive railroad crossings:

Are controlled by flashing lights. Are not controlled by any type of traffic control device. Have gates that lower when trains are approaching. Should never be crossed by a CMV. Take a FREE Practice Test Now

17 . When starting an engine:

The brakes will lock up. Warning lights should turn on, then quickly turn off. Coolant temperatures should decrease. Click Here Full Cheat Sheet

18 . To obtain a CDL for interstate commerce, an applicant must be at least:

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

19 . If stopped on the road or shoulder, within 10 minutes, you must:

Place emergency warning devices. Alert local law enforcement. Stand behind your vehicle and motion for traffic to pass you. Call a mechanic. Take a FREE Practice Test Now

20 . When making tight maneuvers, it is important for a driver to:

Open their door for a better look. Use their mirrors. Flash their headlights. Take a FREE Practice Test Now

21 . Air tank drains:

Allow rain water to enter the tanks. Are used to drain water and oil from the tanks. Should never be opened. Must remain open while driving. Click Here Full Cheat Sheet

22 . An applicant must be at least ____ to obtain a hazardous materials endorsement.

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

23 . What is often found in compressed air?

Water Cardboard Brake fluid Take a FREE Practice Test Now

24 . What can change the height of a vehicle?

Color Length Weight Number of windows Take a FREE Practice Test Now

25 . While driving:

A driver does not need to inform others of their intentions. A driver should only use turn signals if a vehicle is next to them. A driver should not use a turn signal if their lane change will be obvious. A driver should always use turn signals to inform others of their intentions. Click Here Full Cheat Sheet

26 . 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

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 . Move over laws require:

Trucks to use the left lane. All vehicles to vacate the lane closest to an emergency vehicle that is stopped with its lights flashing. All vehicles to use the left lane. All vehicles to move to the left lane if a flatbed trailer is in the right lane. Take a FREE Practice Test Now

28 . When it is difficult to see and you are traveling near other drivers, you should:

Use high beam lights. Use low beam lights. Use only the clearance lights. Take a FREE Practice Test Now

29 . Which of the following is most likely to result in hydroplaning?

Using tires with worn tread Using properly inflated tires Using new tires Traveling at speeds under 10 mph Click Here Full Cheat Sheet

30 . The more alcohol in the body:

The quicker the liver will digest the alcohol. The less effect the alcohol will have on the individual. The longer it will take to remove the alcohol from the body. Take a FREE Practice Test Now

31 . Brakes out of adjustment will:

Work properly. Cause some of the brakes to overwork and malfunction. Allow better acceleration. Take a FREE Practice Test Now

32 . 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

33 . A low air pressure warning signal should activate:

When tank pressure falls below 120 psi. When tank pressure falls below 55 psi. When tank pressure falls below 10 psi. When tank pressure falls below 5 psi. Click Here Full Cheat Sheet

34 . If a truck is equipped, a trailer brake hand valve can be used to:

Add fuel to the vehicle. Prevent the vehicle from rolling back when being started from a stop. Check the oil level. Load cargo. Take a FREE Practice Test Now

35 . If a truck is equipped, a trailer brake hand valve can be used to:

Add fuel to the truck. Prevent the truck from rolling back when being started from a stop. Check the engine oil level. Take a FREE Practice Test Now

36 . When loading a trailer, weight should be:

Placed as high as possible. Placed as low as possible. Placed only on the left side, if possible. Placed only on the right side, if possible. Take a FREE Practice Test Now

37 . Rust around wheel nuts may mean:

It rained recently. The nuts are loose. The nuts are too tight. Click Here Full Cheat Sheet

38 . When entering a curve, you should:

Shift into neutral. Use the shoulder. Downshift. Take a FREE Practice Test Now

39 . During a basic vehicle control skills test, what is considered an encroachment?

The vehicle crossing over an exercise boundary line. A driver executing a single pull-up. A driver placing the vehicle in neutral and applying the parking brake. The vehicle stalling while the driver shifts gears. Take a FREE Practice Test Now

40 . In an engine compartment, loose belts will:

Not turn the water pump and/or fan properly, causing the engine to overheat. Make the engine run more efficiently. Make the fan run too much, causing the engine to run too coolly. Last longer than tight belts. Take a FREE Practice Test Now

41 . To avoid a hazard:

You should always steer to the left. You may be able to drive onto the shoulder. You should steer sharply in one direction. Click Here Full Cheat Sheet

42 . If you plan to slow down, you can warn drivers behind you by:

Slamming on the brakes. Tapping the brakes a few times and before braking. Turning on one set of turn signals. Putting your hand out the driver's side window and waving. Take a FREE Practice Test Now

43 . When carrying a wide load, you should:

Drive as fast as possible. Obtain special permits and follow special rules. Honk at other drivers to get them to move from the lane closest to you. Drive on the shoulder. Take a FREE Practice Test Now

44 . A burning tire should be:

Cooled with water. Fanned with a blanket. Cut up with an axe. Covered with a tarp. Take a FREE Practice Test Now

45 . Talking on a hands-free phone while driving:

Does not distract the driver. Only distracts the driver if the driver is speaking. Can be distracting to the driver. Click Here Full Cheat Sheet

46 . When turning, when should the turn signal be canceled?

Before entering the turn During the turn After the turn is completed Take a FREE Practice Test Now

47 . Broken suspension parts:

Should not concern you. Should be repaired, but do not need to be repaired immediately. Cannot be identified. Are extremely dangerous. Take a FREE Practice Test Now

48 . Steering that feels heavy is often a sign of:

Rear tire failure. Front tire failure. A shifting load. The coolant overheating. Take a FREE Practice Test Now

49 . When should you slow for a curve?

Before entering the curve While in the curve After the curve Click Here Full Cheat Sheet

50 . If the low pressure warning signal activates while you are driving, you should:

Continue driving normally. Exit the road and park as soon as safely possible. Stop where you are and park. Put on your hazard lights and continue driving. Take a FREE Practice Test Now