Vehicle Braking Systems and Dynamics
Classified in Technology
Written on in 
English with a size of 2.79 KB
- F: One drawback of an electromagnetic retarder is that it has adequate response at low RPM.
- V: The electromagnetic retarder consists of a rotor that is subject to the transmission, so when it rotates, the transmission also turns.
- F: The repeated use of a retarder on a descent, causing the brakes to overheat, results in a dangerous phenomenon called fading.
- V: Applying a very low gear or downshifting can maximize the effects of the engine as a brake.
- F: If clearance between the sensor and the tone ring is obstructed by mud or other similar agent, applying the brakes may cause the wheels to lock.
- F: The electromagnetic control unit acts upon sensors which loosen or intensify the pressure in the pneumatic or hydraulic circuit.
- V: If the ABS brake system works properly, its mission is to assess the state of slip of each wheel.
- F: When the front wheels are locked due to loss of adhesion, the truck tends to skid.
- F: During emergency braking, if a wheel shows signs of starting to lock, the system keeps increasing pneumatic or hydraulic pressure.
- F: The ABS warning light must remain always on when the engine is running to indicate the correct state of the circuit.
- F: In some exhaust brake installations, it may be necessary to leave a minimum quantity of fuel flowing to prevent lubricating the injectors.
- F: A Jake Brake has a valve that remains open for three strokes following the end of the compression stroke.
- F: One function of the throttle valve is to reduce the engine temperature during the pre-boot time.
- V: Restricting the tailpipe greatly increases the engine's natural retention power.
- F: The first ABS brakes consisted of mechanical systems that automated the increase of hydraulic pressure when a wheel showed signs of starting to lock.
- V: Driving safety is conditioned by: the vehicle's contact with the road, the condition of the pavement, the tire condition, and the truck's loading.
- V: From a dynamic point of view, a moving vehicle is subjected to 3 major forces: lateral force, propulsion, and braking force.
- V: When lateral forces, centrifugal force, and propulsion are balanced, vehicle control is easy.
- F: Vehicle control is maintained solely by centripetal force, which keeps the wheels stuck to the road.
- F: Anti-lock brakes are a special type of brake that depend on an ECU for the wheels to never be blocked.