Never remove the radiator cap or any part of the pressurized cooling system until it has cooled. Opening the cap while the system is too hot could release steam and boiling water that could severely burn you. If the radiator cap is cool to the touch, the system is likely cool enough for you to open the 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.

Be sure to check the tightness of the belts in your engine compartment. Loose belts will not turn the water pump and/or fan properly, which can lead the engine overheating.

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.

Driving while fatigued can be extremely dangerous. Strategies for preventing drowsiness while driving include getting a full night's sleep before a trip; having someone ride with you so you can take turns driving; scheduling trips for times during which you are normally awake; and avoiding medications that may cause drowsiness.

Scheduling trips during hours when you would not normally be awake

Getting an adequate amount of sleep before driving

Scheduling trips during hours when you would not normally be awake

Avoiding medications that may cause drowsiness

If an emergency vehicle with its lights on is stopped on the side of the road, move over laws require drivers to vacate the lane directly next to the vehicle, if possible. If a driver cannot move over safely, they must slow down and proceed with caution.

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.

Weight of cargo should be loaded into a trailer as low as possible. If the weight of cargo is positioned too high in a trailer, it will put the vehicle at risk of tipping over.

Placed only on the left side, if possible.

Placed only on the right side, if possible.

When asked to make a lane change during the on-road driving test, you should make the proper traffic checks, use your turn signal, and smoothly change lanes when it is safe to do so.

You should use your turn signal and change lanes when safe.

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.

Class B Driving Test | Delaware 2026 #2 Page 3 of 7

Train for FREE online with our Delaware class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a DE CDL class B permit in 2026, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

Class B Driving Test | Delaware 2026 #2 Page 3 of 7

15 . The radiator cap:

16 . In an engine compartment, loose belts will:

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

18 . Move over laws require:

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

20 . When loading a trailer, weight should be:

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

See the exact questions that will be on the 2026 DMV exam.

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