DMV CLASS A QUESTIONS AND
ANSWERS
On any upgrade, gravity will? - ANSWER-Slow you down
When checking tire rims for safety: - ANSWER-A missing clamp means danger and
should be corrected What is the maximum load weight that can be carried on one axel? - ANSWER-20,000 In very hot weather tires should be checked regularly because? - ANSWER-Air pressure may increase with the temperature What is brake lag? - ANSWER-The time required for the brakes to work after the brake pedal was pushed Using the brakes creates heat. What happens when there is too much heat produced? - ANSWER-The breaks may not work When the spring brakes are on, you should never? - ANSWER-push the break pedal down what part of the truth is the air compressor connected to? - ANSWER-The engine On parked snow, how much should you reduce your speed? - ANSWER-by one half or more Air tank drains..? - ANSWER-Are helpful to remove water and oil from the air tanks What is the danger of swerving to avoid a hazard while driving a large truck? - ANSWER-The truck may flip over One good rule states your following distance should be based on how long your vehicle is. Under this rule, how many seconds per feet of vehicle space should you allow when traveling 40 mpg? - ANSWER-1 foot Skids caused by acceleration can usually be solved by? - ANSWER-taking your foot off the accelerator on a truck with air brakes what does the braking systems air compressor do? - ANSWER-it pumps it into the air storage tanks having (ABS)-Anti-lock braking system on only one axle - ANSWER-should still give you more control 1 / 2
Antilock Braking Systems: - ANSWER-are in addition to other braking systems and do not reduce braking power when should you not use the parking brake when parking? - ANSWER-when the brakes are very hot when backing with a trailer you should? - ANSWER-Turn the steering wheel in the opposite direction of the turn How can a person check for a leak in hydraulic brakes? - ANSWER-Pump the brake pedal three times and hold the pedal for five seconds. If the pedal moves, there may be a problem Which of the following is not required safety equipment? - ANSWER-A siren If there is a fire in your vehicle, what should you not do? - ANSWER-Pull into a service station When approaching a vehicle for a pre-trip inspection, a driver should look under the
vehicle: - ANSWER-To see if there are any fresh fluids under the vehicle
What is a bobtail? - ANSWER-Tractor without a semi-trailer Which of the following is not a step in avoiding becoming an aggressive driver? - ANSWER-Not expecting delays on a drive When stopping with a manual transmission vehicle, what should you do when the engine is close to idle? - ANSWER-Push the clutch in Air tank drains: - ANSWER-Are helpful to remove water and oil from the air tanks What kind of force must emergency brakes use? - ANSWER-Mechanical When adjusting your mirrors: - ANSWER-A part of the vehicle should be visible in the mirror When backing with a trailer, - ANSWER-You should pull-up frequently to reposition the vehicle What is the minimum size of a placard? - ANSWER-10 ¾ inches Cargo should have one tie down for how many feet of cargo? - ANSWER-10 When starting the engine, how can you tell if the ABS system is not working on a truck with a trailer? - ANSWER-the yellow light on the left rear of the trailer will stay on
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