20 Tests

CDL Class A Driving Test Online | West Virginia 2021

Train for FREE online with our West Virginia 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 WV CDL class A permit in 2021, practice as much as.. Read More

Train for FREE online with our West Virginia 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 WV CDL class A permit in 2021, 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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1 . Emergency brakes are:

Only required when transporting hazardous materials. All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes.

2 . A dual air brake system:

Has two separate air brake systems, but uses a single set of controls. 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.

3 . How does doubling your speed from 20 mph to 40 mph affect your vehicle's braking distance?

It quadruples. Increasing your vehicle's speed will increase your vehicle's striking power and braking distance. Doubling your vehicle's speed from 20 to 40 mph will multiply its braking distance by four.

4 . Which part of the truck is the air compressor connected to?

The door latch In an air brake system, the air compressor is connected to the engine through gears or a v-belt.

5 . An air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately ____ to come to a complete stop.

450 feet A vehicle's total stopping distance is made up of perception distance, reaction distance, brake lag distance, and braking distance. With all of these factors included, an air brake-equipped vehicle traveling at a speed of 55 mph under ideal driving conditions will need approximately 450 feet to come to a complete stop.

6 . After starting the engine, oil pressure should reach a normal level:

Within 10 minutes of driving. After you start the engine, keep an eye on the gauges. Oil pressure should rise to a normal level within a few seconds of the engine being started.

7 . When covering cargo, a cover that flaps in transit:

Can attract birds. If cargo is covered, the cover should not flap in the wind in transit. The cover could tear loose, uncovering the cargo while potentially blocking your view or the view of others.

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