Question: 2.7.06-103

4 Points

Licenses: B

What are the advantages of an automatic anti-locking device (ABS)?

Choose one or multiple correct answers

A. The wheels do not lock when braking
B. Steering control is retained even when braking heavily
C. Bends can be taken considerably faster

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Correct answer

A. The wheels do not lock when braking
B. Steering control is retained even when braking heavily

Comment

The antilocking system has the advantage that it prevents locking of the wheels when braking on wet or dirty tracks. For this purpose, the brake pressure is regulated at short intervals. Normal driving characteristics are not affected by the ABS.

Brake systems and cruise control

Chapter 2.7.06

2.7.06-001 What is the benefit of having a motorbike with an anti-lock system (ALS)?

2.7.06-101 What is the effect of an automatic anti-locking device (ABS)?

2.7.06-103 What are the advantages of an automatic anti-locking device (ABS)?

2.7.06-104 What are the advantages of an automatic anti-locking device (ABS)?

2.7.06-105 When does the braking action of a trailer with overrun brakes start?

2.7.06-107 When is there a particularly high risk of a combination vehicle jack-knifing or skidding on a slippery road?

2.7.06-108 When is there a particularly high risk of a semi-trailer truck with compressed-air brakes jack-knifing or skidding on a slippery road?

2.7.06-109 You are pulling a trailer with overrun brakes. What must you be aware of?

2.7.06-110 What could happen if the cruise control system (speed limiter) is switched off too late?

2.7.06-111 With what can a cruise control system (speed limiter) assist you?

2.7.06-112 What should I be aware of when using an adaptive cruise control system?

2.7.06-113 What function is performed by an adaptive cruise control system on a motor vehicle?

2.7.06-114 What benefits does the driver of a motor vehicle have by using a cruise control system?

2.7.06-115 In which situation is it helpful to use an adaptive cruise control system (ACC)?

2.7.06-116 How can you manually override an activated cruise control system?

2.7.06-117 What is the purpose of an adaptive cruise control system (ACC) in motor vehicles?

2.7.06-118-M While driving, you use the adaptive cruise control (ACC). The speed is set to 100 km/h. What must you be prepared for before entering a bend in the road?

2.7.06-119 What is the function of your vehicle’s emergency brake assist?

2.7.06-202 What happens when the retarders are engaged and the service brake is applied?

2.7.06-203 What are the advantages of the speed control (cruise control) when driving a motor vehicle?

2.7.06-206 When should the speed control (cruise control) be used?

2.7.06-208 What is understood by a braking system with an automatic load-dependent braking-force regulator (ALB)?

2.7.06-209 The rear wheels of an unloaded vehicle equipped with an automatic load-dependent braking force regulator (ALB) lock each time the brakes are strongly applied. What can be the cause?

2.7.06-210 How does the effect of automatic load-dependent braking-force regulators (ALB) and automatic anti-locking devices (ABS) differ?

2.7.06-211 Which brakes are not subject to significant wear?

2.7.06-213 What produces the braking action in a spring-loaded brake cylinder?

2.7.06-214 How does a spring-loaded brake system work?

2.7.06-215 The spring-loaded brake has been applied on a truck which has broken down with engine failure. The air supply is exhausted. What effect does this have?

2.7.06-216 What kind of emergency release devices exist for spring-loaded brake cylinders?

2.7.06-217 You are driving a bus equipped with a bus-stop brake. When are you allowed to use the bus-stop brake?

2.7.06-220 What must you remember with an air brake system with air-drier?

2.7.06-222 When you depress the brake pedal completely, what fall in pressure in the air tank of a motor vehicle (cut-off pressure approx. 7 - 8 bar overpressure) gives no cause for concern?

2.7.06-223 What is the function of a multiple-circuit safety valve in an air brake system?

2.7.06-224 Which inspections and servicing measures are regularly required for an air compressor?

2.7.06-226 Why is a pressure drop of more than 0.7 bar in the air tank of a vehicle problematic when you fully depress the brake pedal (cut-off pressure approximately 7 - 8 bar)?

2.7.06-227 The braking force on the rear wheels of a vehicle with automatic load-dependent braking force regulator (ALB) fails. What can be the reason?

2.7.06-228 Your motor vehicle is equipped with an electronic braking system (EBS). What happens in the event of a failure of the EBS?

2.7.06-229 Your motor vehicle is equipped with an electronic braking system (EBS). What does the EBS perform?

2.7.06-230 What happens if the service brake is activated while the permanent brake is switched on?

2.7.06-231 You press the brake pedal of your motor vehicle fully down. What is the maximum safe decrease of pressure in the braking system if the air tanks are full?

2.7.06-232 Why is a decrease of pressure of more than 0.7 bar problematic in the compressed air system of a motor vehicle, if you press the brake pedal fully down one time (cut-off pressure around 10 to 13 bar)?

2.7.06-233 What is the purpose of an automatic load-sensitive braking system (ALB)?

2.7.06-234 Which brake system of a motor vehicle functions without any appreciable wear?

2.7.06-235 Your motor vehicle is equipped with an electronic braking system (EBS). What is the effect of the EBS?

2.7.06-236 You are driving a laden motor vehicle equipped with a manual gearbox. On a steep descent your speed is steadily increasing even though the permanent brake is activated. What should you do?

2.7.06-237 Your motor vehicle is equipped with an emergency brake assist. Which is correct?

2.7.06-238 Your motor vehicle is equipped with an emergency brake assist. Which is correct?

2.7.06-239 Why should you use the permanent brake (retarder) of your motor vehicle?

2.7.06-240 What is the benefit of using adaptive cruise control (ACC) on motorways?

2.7.06-241 You are driving a motor vehicle with a manual gearbox. What is the logical thing to do so that the cruise control system can contribute to a fuel-efficient driving style?

2.7.06-242 What can cause the emergency brake assist of a vehicle to deactivate automatically?

2.7.06-303 What happens to a truck and trailer combination when the spring-loaded braking system of the truck is activated?

2.7.06-306 In which cases must you activate the release valve?

2.7.06-307 What is the effect when the brake line (hose) between the truck (dual-circuit brake system) and trailer breaks on braking?

2.7.06-308 The brake line to the front right-hand wheel ruptures on a truck which is fitted with an air-hydraulic dual-circuit braking system with pre-loaded cylinder and a pneumatic trailer-control valve. What effect does this have on the truck and trailer?

2.7.06-309 What danger arises if the brake cylinder pistons of a trailer air brake system protrude to their limit stop on braking?

2.7.06-310 What can happen if a truck and trailer are continuously braked with the service brakes on a long downhill slope?

2.7.06-311 You are driving downhill with fully loaded truck and trailer and have underestimated the slope. Despite retarders being engaged, the speed increases appreciably. What must you do?

2.7.06-313 You park a trailer with compressed air-braking system for a short period. How can you disengage the service brake of the trailer?

2.7.06-314 Only the towing vehicle of a semi-trailer unit is equipped with an anti-lock braking system (ABS). What could the effect of this be when performing an emergency braking manoeuvre on a wet carriageway?

2.7.06-315 The connection between the electronic braking system (EBS) and the trailer is interrupted. What effect could this have on the trailer when braking?

2.7.06-316 Towing vehicle and trailer are equipped with an electronic braking system (EBS). How can you check the electronic connection to the trailer when the reservoirs are full?

2.7.06-317 What will be the effect if the brake line hose with the yellow coupling head tears between the towing vehicle and trailer during braking?

2.7.06-318 A piston belonging to the pneumatic brake cylinders of your trailer is extended to its maximum during braking. What danger can this present?

2.7.06-319 You are driving a towing vehicle equipped with a compressed air-braking system. The brake line to the front-right wheel severs. What impact does this have when towing a trailer?

2.7.06-320 You are driving a truck and trailer with a common compressed air-braking system. What is the function of the handbrake valve control setting here?

2.7.06-321 What is the effect on a truck-trailer combination when the parking brake in the towing vehicle is engaged (not in the test position)?

2.7.06-402 You want to drive an agricultural tractor with two trailers equipped with compressed-air brakes. What do you have to ensure you do with the manual brake power regulator on each of the trailers?

2.7.06-403 What is needed to ensure that the cruise control can contribute to fuel-efficiency?

2.7.06-404 What function is performed by an automatic load-sensitive braking system?

2.7.06-405 You want to drive a vehicle with a trailer equipped with overrun braking. What do you have to check before beginning the journey?

2.7.06-406 What do you have to regularly check on the air compressor?

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Question: 2.7.06-103

4 Points

What are the advantages of an automatic anti-locking device (ABS)?

Correct answer

Comment

Brake systems and cruise control

Chapter 2.7.06

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