Knowledge Test Class A #1
Class A Driving Test | Delaware 2025 #1 Page 6 of 7
Train for FREE online with our Delaware class A 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 A permit in 2025, 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 A requirements may vary from state to state.
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36 . To obtain a CDL for interstate commerce, an applicant must be at least:
25 years old.
You must be at least 21 years old and have at least one year of driving experience to be licensed to drive in interstate commerce or to transport hazardous materials.
37 . A thin layer of ice that forms on road surfaces is called:
Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.
38 . Service brakes should:
Before driving, you should always verify that your service brakes are in good working order. Testing the brakes before a trip allows you to locate any problems before you need to brake while on the road.
39 . Blocking is used to:
Blocking may be used on all sides of a piece of cargo to keep it from sliding while the vehicle is in motion.
40 . How can you check for a leak in hydraulic brakes?
Check hydraulic brakes by pumping the brake pedal three times before applying firm pressure to the pedal for five seconds. The pedal should not move. If it does, there may be a leak or some other problem in the braking system.
41 . In an emergency situation, you should:
Always turn on your flashers to warn other drivers.
