stab braking should not be used on vehicles with

(b) Use light steady pressure on the brake pedal. Release the brakes if the wheels lock or you need to . C. Hazardous materials. A sign of brakes fading is: A. Good luck in your CDL pursuit. 12. One system typically operates the regular brakes on the rear axle or axles. B Drive alongside other drivers. (It can take up to 1 second for the wheels to start rolling after you release the brakes. Many schools have large open driveways, entrance roads . Brake failure - Brakes kept in good condition rarely fail. The controlled braking method involves: Applying the brakes as hard as you can without locking up the wheels. Please log inor registerto add a comment. B. A. (c) Brake as hard as you can, release the brakes when the wheels lock up and put the brakes on again when the wheels start rolling. WHEN YOU DO SO YOU SHOULD KEEP IN MIND, THAT: A. 5.2 - Dual Air Brake. 21. Copy. Use stab braking. Controlled Braking. b. golpes" para detener el vehículo. As soon as teh wheels start rolling, put on the brakes fully again. Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process. However, with air brakes, it takes a little time (one half second or more) for the air to flow through the lines to the brakes. When asked if education should be taken into account, 46% supported the idea, marking a 119% jump from last . 28. As soon as the wheels start rolling, put on the brakes fully again. This answer is: Helpful ( 1) Defines stab as brake till lock let off then brake till lock let off… Defines controlled as . With this method, you apply the brakes as hard as you can without locking the wheels. When stopped, select a starting gear. 27. Use stab braking C. Use only the trailer brakes to maintain "safe" speed D. Apply brakes when the vehicle speed reaches 5 mph over "safe" speed and then release one speed of vehicle is back at the "safe" speed. Retarder. c. Either the front or rear brakes will not be fully functional . If you do not have an automatic tank drain, when should you drain the air tanks? This braking technique is a great way to maintain control of your car and avoid skidding. Any time the vehicle is parked. What is the difference between controlled braking and stab braking? Apply trailer brakes to reduce speed or maintain speed B. C Only when the vehicle does not require placards D Only when a person who has the hazardous materials endorsement rides in the vehicle . Related questions 0votes 1answer The air loss rate for a straight truck or bus with the engine off and the parking brakes off and the service brakes on should not be more than Correct! light pressure heats up the brakes. On a vehicle with anti lock brakes. Wiki User. You should brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary. Sometimes you need to leave a road to avoid a hazard or emergency. As little as possible b. With hydraulic brakes (used on cars and light/medium trucks), the brakes work instantly. Should be kept as high as possible b. A straight truck brake system should not leak at a rate of more than psi per minute with the . To hold your speed when going downhill. D. 2/32 inch tread depth is permissible for steering tires. [.] If the brakes are working . WHEN YOU DO SO YOU SHOULD KEEP IN MIND, THAT: A. Per CDL training documents, stab braking involves locking the wheels, controlled braking does not lock the wheels. Most hydraulic brake failures . com/QDRGPHJ","txt":"Why drain water from the compressed air tanks?, To make an emergency stop with air brakes using the stab braking method, you should:, Oil and water usually collect in . First, all buses used for braking training should be in top condition. Emergency stab braking is when you: Brake as hard as you can, release the brake when the wheels lock, then push the brakes again when the wheels start rolling. To pass, you must correctly answer at least 40 questions (80%). Use stab braking C. Use only the trailer brakes to maintain "safe" speed D. Apply brakes when the vehicle speed reaches 5 mph over "safe" speed and then release when speed of vehicle is back at the "safe" speed 20. B Brake hard until the wheels lock, and then get off the brakes for as much time as the wheels were locked. Air Storage and Drain Tanks: Air storage tanks are used to hold compressed air. The Colorado CDL test consists of 50 questions. Correct answers needed to pass: 40. C 2 psi in one minute. Stab braking should not be used on vehicles with: Antilock brakes. which of these is not a type of retarder. The Vermont CDL test consists of 50 questions. Use the braking effect of the engine C. Use stab braking D. Apply brakes when your vehicle exceeds the "safe speed" by 5 mph 18. A dual air brake system has 2 separate air brake systems, which use a single set of brake controls. Number of Question 20. Apply the brake all the way. As soon as the wheels start rolling, put on the brakes fully again. Up shift b. You are asked to haul hazardous materials in a placarded vehicle. response is to hit the brakes. (It can take up to 1 second for the wheels to start rolling after you release the brakes. 26. B. Apply the brakes about halfway, but keep the wheels rolling. It is permissible to use radio and bias-ply tires together on the same axle. Now I know that is not the best; controlled braking should be the proper terminology, using an on/off method of applying the service brakes to reduce the chance of . Release the brakes when the wheels lock up. Fully apply the brakes, let the wheels lock up, and hold the brake pedal down, keeping the wheels locked until the vehicle stops. Controlled braking. Stab braking: a. . Apply the brake all the way. Correct answer is (c) Anti-lock brakes Stab braking should not be used on vehicles with Anti-lock brakes. Apply the brakes about halfway, but keep the wheels rolling. Stab braking: Use only on vehicles without anti-lock systems. A) Apply the brakes while turning. . Let us know if we can help in any way. The general knowledge test covers the contents of the Vermont CDL Manual . Apply the brakes just hard enough to slowdown about 5 mph below your safe speed. Its application is extremely useful when hauling, towing, or driving a heavy vehicle, so I'll cover all the situations where emergency stab braking might come in handy. the purpose of retarders is to. Start Test #7 Now 1. You can use the "controlled braking" method or the "stab braking" method. When should you downshift an automatic transmission? 2. Select your State Take more free practice tests for other CDL topics with our dmv cdl practice tests now! Drivers appear to be embracing the use of educational levels in car insurance quotes. Use the braking effects of the engine, and when the vehicle speed reaches the "safe" speed, apply brakes firmly until vehicle . stop to avoid a crash, use controlle d or stab braking. Never been told to use stab braking until wheels lock up thats a disaster waiting to happen. EMERGENCY STOPS.- When applying air brakes in an emergency stop, brake so you can steer and keep your vehicle in a straight line. C) On slippery roads, it takes longer to stop and is harder to turn without skidding. Should never be used b. Start your CDL test study with our best CDL practice test right now! Most heavy-duty vehicles use dual air brake systems for safety. The right way is smooth… gently apply pressure up to a maximum, and then ease equally smoothly off the pedal. Parking . Emergency stab braking is primarily used on vehicles without the ABS system to prevent wheels from locking up, but it can be very useful even on vehicles that have ABS. CA DMV CDL General Questions New. "Combination Vehicles - Quiz Sample #3, 15 questions", "url":"https . Now I know that is not the best; controlled braking should be the proper terminology, using an on/off method of applying the service brakes to reduce the chance of . Per CDL training documents, stab braking involves locking the wheels, controlled braking does not lock the wheels. Thus, the total stopping distance for vehicles with air brake systems is made . Stab braking: Use only on vehicles without anti-lock systems. D. Press hard on the brake pedal and apply full hand valve until you stop. With air brake equipped vehicles, the parking brakes should be used a. Passing Score: 80%. B. anti-lock brakes. If the vehicle is moving at a pretty good pace; in order to stop, the brake pedal has to be pumped. Release the brakes when the wheels lock up. D Make turns as gently as possible. 21. A. . Apply the brake all the way. Down shift . D 3 psi in one minute. Robotics. 25. (It can take up to 1 second for the wheels to start rolling after you release the brakes. The throttle is not a light-switch, it's a . All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles . A) Shady parts of the road allow better traction than open area. SOMETIMES YOU NEED TO LEAVE A ROAD TO AVOID A HAZARD OR EMERGENCY. Press pedal to floor & hold until just before the wheel. I have been guilty of recommending stab braking as the preferred method of reducing speed during a descent. The distance you should look ahead of your vehicle while drving amount to about _____ miles for highway speed. C. Brake as hard as possible until the wheels lock, then release the brakes until the wheels start rolling, and repeat. . When should you use stab braking? air loss in a straight truck or bus should not be more than ___ with the engine off and the brakes on. Click to see full answer. 2. 5. Stab braking: Use only on vehicles without anti-lock systems. Emergency stab braking is when you: (a) Press hard on the brake pedal and apply full pressure on the hand valve until you stop. a. Hence, stab braking should not be used on a vehicle with antilock brakes. Stab Braking Use only on vehicles without anti-lock systems. When going down a long/steep downgrade you should use engine braking to . c. Stop and safely park as soon as possible . As soon as the wheels start rolling, put on the brakes fully again. (It can take up to 1 second for the wheels to start rolling after you release the brakes. Keeping the steering wheel movements to a minimum. Stab braking should not be used on vehicles with. When set to "slippery," it cuts the standard air pressure to the front brakes in half. 13. A anti-lock brakes. Release the brakes when the wheels lock up. IN General Knowledge Fact Sheet. The most important thing to do when a low-pressure warning light comes on is to. Drivers appear to be embracing the use of educational levels in car insurance quotes. Test questions come from the Nevada Commercial Driver License Manual. 24. What is a "pull-up?" . You will NOT see these questions on your test at motor vehicle. Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process. Stop quickly and safely - You should brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary. Check out the full courses if you find these questions difficult. when you do so you should keep in mind, that: . C. Hazardous materials. Review Section 2.17.2 on How To Stop Quickly and Safely, if you cannot remember either the controlled or the stab braking meth ods. ∙ 2012-08-16 03:37:47. These General Knowledge practice questions are meant to accompany our Free Online CDL Courses. The general knowledge test covers the contents of the Colorado CDL Manual . Explaination In stab braking, you deliberately keep locking and unlocking the wheels. If your vehicle is equipped with a manual transmission, do not push the clutch in until the engine rpm is lowered to idle speed. Spring brakes are used for the emergency and parking brake . This is a good response if there s enough distance to stop, and you use the brakes correctly. Hopefully you are not tailgating the car in front of you so you can . They should also be vehicles used on daily routes and not rarely-driven spares. If you reapply the brakes before the wheels start rolling, the vehicle will not straighten out. 3 psi in one minute. WHEN THE LOW AIR PRESSURE WARNING COMES ON, YOU SHOULD: stop and park as soon as possible. Stab braking: A Should never be used B Involves locking the wheels C Involves steady pressure on the brake pedal D Should only be used on slick roads . B. Most shoulders are not strong enough to support a heavy vehicle. 9. You should brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary. A) Shady parts of the road allow better traction than open area. When a failure occurs in the service brake system, the system you need to use to stop the vehicle is the: A. It can take up to 1 second for the wheels to start rolling after you release the brakes. Tires of mismatched sizes should not be used on the same vehicle. You can use the "controlled braking" method or the "stab braking" method. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. The controlled braking method involves: Applying the brakes as hard as you can without locking up the wheels. To make an emergency stop with air brakes, using the stab braking method, you should: A Pump the brake pedal rapidly and lightly. Keeping the steering wheel movements to a minimum. Apply the brake all the way. WHY IS CONTROLLED OR STAB BRAKING BETTER THAN SHORT, LIGHT BRAKE PEDAL PRESSURE ON LONG DOWNHILL GRADES? (It can take up to 1 second for the wheels to start rolling after you release the brakes. Stab Braking Use only on vehicles without anti-lock systems. Most shoulders are not strong enough to support a heavy vehicle. Anytime the vehicle is parked c. To hold your speed when going downhill d. Only during pre-trip and post-trip inspections 25. How To Perform The Stab Braking Technique An air dryer is used to take the moisture out of the air, so that water condensation will not build up in the air storage tanks and cause the brakes to fail, such as when the water freezes in the winter. As soon as the wheels start rolling, put on the brakes fully again. Sooner or later you will need to brake. All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate . B. Antilock brakes. In air brake vehicles the parking brakes should be used how? Stab braking ( or Cadence braking as it is also called ) is a technique that can be used in a car that doesn't have an ABS system. A controlled braking method is designed to brake by keeping your vehicle in a straight line, but allows you to turn if necessary. STAB BRAKING SHOULD NOT BE USED ON VEHICLE WITH: A. Trailers. You should: You are testing the stopping action of service brakes on a hydraulic system. You are inspecting hydraulic brakes. C) On slippery roads, it takes longer to stop and is harder to turn without skidding. C Decreases the distance that you look ahead of your vehicle. Each system has its own air tanks, hoses, lines, etc. To pass, you must correctly answer at least 40 questions (80%). Use controlled braking instead. Stab breaking has always been described to me as pressing firmly on the brakes reducing speed about 10 mph and releasing until speed builds back up the 10 or so mph and repeating. evitar un choque, use el frenado controlado o "a golpes". C) On slippery roads, it takes longer to stop and is harder to turn without skidding. As soon as teh wheels start rolling, put on the brakes fully again. the driver must be able to see a warning that is given before air pressure in the service air tanks falls below: 60psi. I have been guilty of recommending stab braking as the preferred method of reducing speed during a descent. If you reapply the brakes before the wheels start .

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