If you must brake hard on a slippery surface, pump the brakes lightly instead of applying constant pressure. Which of these statements is true? This method is used when there is no one around and you have lots of time to slow down. On the air-brake system the driver must pump or use stab braking in an emergency. This method is applied when you are traveling down steep grades on those very hard to drive mountain roads. Stab braking, can only be done in vehicles without antilock brake systems (ABS). The cookies is used to store the user consent for the cookies in the category "Necessary". Apply the brakes completely until the wheels lock up and the vehicle stops. B It is permissible to use radio and bias-ply tires together on the same axle. Warning devices for parked vehicles. Pros and Cons of this Technique, 9 Reasons Why Car Detailing Is Great For Your Vehicle, Best Oil for Audi Q5: Top Recommendations for Peak Performance, Garage Door Security: Top Tips to Protect Your Vehicles, How Autonomous Vehicles are Changing the Future of Transportation. Unstable loads such as hanging meat or livestock require extra caution on curves. Class A CDL Test #2 (General Knowledge) - Chegg However, you will have to combine the technique with pre-corner braking. The best trucker GPS app is helpful since driving a truck can be challenging and demanding, especially when navigating unfamiliar routes and finding the best truck-friendly roads. Stab braking is a term used in the automotive world, and its not as dangerous as it sounds. The technique is mainly used with older generations of cars. Wait to change lanes until you are sure the car isn't in your blind spot. A vehicle is loaded with very little weight in the drive axle. for subscribers! While driving, you see a small (1 foot square) cardboard box ahead in your lane. At least 100 feet before turning or changing lanes, Generally are used when freight is carried part way by rail or ship. But traffic is now heavy, moving at 35 mph though the speed limit is 55. Keep your following distance (the space between you and the vehicle ahead) constant, or make it larger if you can. Stab braking: Turning the wheel in the opposite direction after steering to avoid a traffic emergency. Stab braking is not effective when the road surface is wet or icy, as the tires can lose traction and cause the car to skid. The maximum legally permitted towing connection length is 15 feet. You are about to exit the road and need to slow down, Wait for a large enough gap in the traffic to enter the road. When starting a bus on a level surface with good traction there is often no need for ? You can drive a vehicle hauling hazardous materials when? Hazardous materials. Which of these is NOT a type of retarders? Yes and they can put you out of service if unsafe. How is stab braking used for emergency stops? How long is it safe to use nicotine lozenges? Can federal inspectors inspect your truck or bus? You use this in conjunction with your manual shifter to reach a lower gear at safe speeds. what happens if the brakes are applied? \text{$s_{2}$} & \text{$s_{3}$} & \text{$s_{2}$} & \text{$s_{1}$} & \text{0}\\ It could be dangerous whenever you speed and hit the brake hard, as it is nearly impossible to steer safely into position by yourself. Skidding decreases the effectiveness of the brakes and increases stopping distance. Which of these statements is true? However, this can be dangerous when not used properly or when used by someone inexperienced. What is the most important reason to inspect your truck or bus? Which of these statements about Cargo loading is true? Save my name, email, and website in this browser for the next time I comment. The stab braking method has you stepping on the brake until the wheels lock and then you are to release the brake so the wheels begin to rotate again. You can let other drivers know about you by? When doing this process, you are meant to hit the break, release, hit again, and then hold down. Also available in App Store & Google Play. You can refer to the answers, The following summaries about e town concrete merch will help you make more personal choices about more accurate and faster information. The key to using either system is not to panic or be afraid. ABS acts as an automatic stabbing affect even when you apply constant pressure on the brake pedal, as in controlled breaking. In emergency use stab or controlled braking. to install app. D A Air braking takes more time than hydraulic braking because air brakes: A Need to have airflow through the lines to work. You can refer to the answers, The following summaries about epoxy paint for outdoor concrete patio will help you make more personal choices about more accurate and faster information. It is less dangerous to drive onto the shoulders than to make a collision Which of the following is NOT a characteristic of the front tire failure? What can this cause when the brakes are applied? At this point, it is hard to control your car or maneuver back into position. What should you do? C Stop and test the traction while going up hills. It is also not recommended to use this technique on bald or damaged tires. What Is The First Maneuver In Stab Braking? If you must stop into the oncoming lane as you make a turn, you should? When helper needs to be used to back your vehicle? Is stab an adverb? When you do so you should keep in mind, that ? The safest Speed for your vehicle is most likely. Used whenever it is safe and legal to do so. A You must exit a highway using an off-ramp that curves downhill. You should pump the brake pedal three times then apply firm pressure to the pedal for five seconds. Stab braking should not be used on vehicle with? The ABS does the same thing, except that is done automatically by the vehicle, while the method discussed requires some effort from the driver. When you apply pressure at one end of a hydraulic brake line, the same amount of pressure is immediately transferred to the other end. 6. This method may not work if you only have seconds to slow down and stop. If the speed of the child is 2.2m/s2.2 \mathrm{~m} / \mathrm{s}2.2m/s, what is the minimum coefficient of static friction between the child and the merry-go-round that will prevent the child from slipping? Knowing when not to use the stab braking method is as important as knowing when is the right time to use it. Knowing how the stab braking method works may be an essential survival skill when the ABS fails. severe) referring to the. What happens to tar on the road pavement during hot weather? Motorcoach Brake Systems and Safety Technologies | FMCSA You should adjust your mirrors before starting the trip. Stab braking allows drivers to lock the wheel of their vehicle whenever they brake hard. Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process. If you panic you may make a mistake and create bigger problems for you, your vehicle, and those around you. 3. This cookie is set by GDPR Cookie Consent plugin. This is similar to stab braking and some people use the terms stab and snub interchangeably. Wait to change lane until you are sure that car is not in your blind spot. email Stab or Controlled Breaking Which Best/Fastest - TruckersReport.com So, if you find yourself in a situation where you need to brake hard and use the stab braking technique, dont hesitate! Clear the area B. You should: This website uses cookies to improve your experience while you navigate through the website. A higher gear that you would use to climb the hill. C You repeat this over and over till you are going slow enough or have come to a full stop. Where or when should you test the stopping action of your service brakes? When should you use stab braking? CDL General Knowledge Practice Test #7 | Trucker Country B Can you use stab braking with ABS? - Wise-Answer Which of these statements about cargo loading is true? Simply click in your answer to each CDL practice test question. High beams should be: C When you are starting to move up a hill from a stop? Look outside your vehicle for another means of slowing you. You need both hands on the wheel to turn safely. to install app, Stab braking can only be done in vehicles without anti-lock brake systems (ABS). If your vehicle catches fire while you are driving, you should? The snub system is when you only apply slight pressure (20 to 30 psi) on the brakes. When you understand how the ABS works, then you will understand why you do not use the stab method with those vehicles. 9+ stab braking should not be used on vehicles with most standard. Apply the brake all the way. What keeps an engine cool in a hot weather driving? ), Stab Braking Should Not Be Used on Vehicles With. Steering in the opposite direction from what other drivers expect you to do. Slow down to 5 mph below the posted speed limit. What are the conflicts in A Christmas Carol? If you do not hold a wheel with both hands it could pull away from you. It would be best only to release the brake pedal when the wheels are still locked. D Air Compressor and Air System Pressure - You should be . You should not use stab braking on which of the following vehicles? Which of these statements about hazard of vehicle fire is true? Which is the proper way to hold the steering wheel? Once you can keep calm and do what you are supposed to, you will have no problem using this braking method. Also, you can use the stab braking method when cornering. Honk your horn and stay close behind the car. What should you do if a car coming toward you at night keeps its high beams on? Air brakes are really 3 different braking systems: service brake, parking brake, and emergency brake. The use of the brakes on a downgrade add to the braking effect of the engine, The coolant temperature gauge should be read right to normal. The second situation is when you have bald or damaged tires. D Should only be used on slick roads.