Class B Driving Test | District Of Columbia 2024 #1 Page 3 of 7
Train for FREE online with our District Of Columbia 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 DC CDL class B permit in 2024, 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.
15 . If a vehicle has air brakes, the air compressor drive belt should be checked before each drive. In what condition should the belt be?
When inspecting a vehicle with air brakes that has a belt-driven air compressor, you should check the condition and tightness of the belt. It should be in good condition.
16 . A dual air brake system:
A dual air brake system has two separate air brake systems that use a single set of brake controls. One system typically operates the regular brakes on the rear axle or axles. The other system operates the regular brakes on the front axle.
17 . Brakes can get out of adjustment:
Brakes are particularly prone to getting out out adjustment if they are hot. Use proper braking techniques to avoid letting your brakes overheat.
18 . Passive railroad crossings:
Railroad crossings that are not controlled by any type of traffic control device are known as passive crossings. The decision to proceed across tracks at a passive crossing is entirely up to the driver.
19 . Suspension system defects may include all of the following, except:
Defects to check for when inspecting your vehicle's suspension system include cracked or broken spring hangers; missing or broken leaves in a leaf spring; and leaking shock absorbers. If you spot any of these issues, be sure to have them repaired.
20 . If a load is 10 feet long, it should be secured by at least ____ tie-down(s).
On flatbed trailers and trailers without sides, cargo needs to be tied down. There should be at least one tie-down for every 10 feet of cargo. Regardless of the size of the cargo, at least two tie-downs must be used.
21 . Regarding winter driving, all of the following are true, except:
When driving during the winter, it is particularly important that your tires have adequate tread. You need a tread depth of at least 4/32 of an inch in every major groove on the front tires, and at least 2/32 of an inch on the back tires. Check the tread depths by using a gauge.
See the exact questions that will be on the 2024 District Of Columbia DMV exam.
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