···
Log in / Register

What do various braking systems mean in Subject 4?

4 Answers
JulietteDella
07/30/25 2:58am

There are two types of braking systems in Subject 4, here is more information: Service brake. Commonly known as the foot brake, the service brake is the braking method used during normal driving. It primarily converts the mechanical force from the brake pedal into hydraulic pressure, which is then transmitted to the brake system and applied to all four tires of the vehicle to achieve braking. Parking brake. Commonly known as the handbrake, the parking brake is used when the vehicle is stationary to prevent it from rolling. It mainly works by connecting a steel wire cable to the brake shoes to apply braking force, typically acting on the rear wheels of the vehicle.

Was this review help?
13
1
Share
MarcusRose
08/16/25 9:21am

I remember when I was taking the fourth subject of the driving test, I was completely confused about the various types of braking when I first started learning to drive. They include service brake, parking brake, engine brake, and ABS brake. The service brake is the normal brake pedal you press to slow down while driving, which is the most commonly used braking method. The parking brake usually refers to the handbrake, which you pull up when parking to prevent the vehicle from sliding. Engine braking uses the resistance of the engine to slow down, such as downshifting when going downhill, which helps protect the brake pads from overheating and damage. ABS braking is the anti-lock braking system, which prevents the wheels from locking up during emergency braking, allowing you to maintain steering control. These are essential topics in the test, and not understanding them can easily lead to failing. After learning them, when I had to brake hard in the rain on the road, the ABS was a huge help—the car didn’t lose control, and I felt very reassured. Understanding the meaning of each type of braking is not just a test requirement but, more importantly, a matter of driving safety.

Was this review help?
1
1
Share
Expand All
RiverDella
10/22/25 2:38am

As someone who frequently drives long distances, I believe various braking systems are crucial in driving. The different types of braking mentioned in Subject 4 include service braking (daily use of the brake pedal to slow down), parking brake (handbrake for stopping and preventing slippage), engine braking (downshifting to use the engine for deceleration), and ABS (Anti-lock Braking System). Service braking is a fundamental skill used to adjust speed; the parking brake is essential when stopping on steep slopes—don't forget to pull it tight. Engine braking can reduce the burden on the brakes and prevent failure; ABS prevents wheel lock-up in emergencies, especially useful on slippery roads during rain or snow. When reviewing for the test, it's best to watch example videos to deepen your understanding, such as the wheel movements when ABS activates. In actual driving, mastering these can prevent rear-end collisions and enhance safety.

Was this review help?
19
1
Share
Expand All
VonLorenzo
12/05/25 3:02am

I understand that the various braking methods in Subject 4 refer to different types of braking techniques. Service braking is using the foot brake to decelerate; parking braking is the handbrake to secure the vehicle when parked; engine braking involves downshifting to let the engine drag and slow down; ABS braking is the system automatically preventing wheel lock-up. The key point in the safety exam is to distinguish their respective usage scenarios to avoid confusion and penalty points.

Was this review help?
1
3
Share
Expand All
More Forum Discussions

Should the car air conditioning AC be turned on in winter?

In winter, the car air conditioning AC should not be turned on. AC is the cooling option of the air conditioning system, and it is unnecessary to use it in winter. Simply turning on the heater is sufficient. Activating the AC means the air conditioning compressor is engaged, which initiates the cooling process, so it should not be used in winter, and cold air should definitely not be turned on. The car air conditioning system, abbreviated as car AC, is designed to regulate and control the temperature, humidity, air cleanliness, and airflow within the car cabin to optimal conditions. It provides a comfortable riding environment for passengers, reduces travel fatigue, creates favorable working conditions for the driver, and plays a crucial role in ensuring safe driving as a ventilation device.
17
1
Share

Can you make a U-turn within the left-turn channelizing line?

U-turns are not allowed within the left-turn channelizing line. The channelizing line typically consists of one or several white V-shaped lines or diagonal stripes set according to the intersection terrain, indicating that vehicles must follow the prescribed route and are not allowed to drive over or cross the line. It is mainly used for wide, irregular, or complex intersections, ramp entrances of interchanges, or other special locations. The purpose of setting the channelizing line is to ensure that every vehicle can 'stay in its lane,' serving to regulate, guide, and warn traffic, thereby reducing accidents. The channelizing line is a type of prohibited marking, and vehicles must follow the designated route and are not allowed to make U-turns or park arbitrarily within the channelizing line area.
13
1
Share

How to reset the engine fault light on a 307?

307 engine fault light reset method is: Use a dedicated OBD diagnostic tool to check the fault codes. If it's an intermittent fault code or caused by power interruption, simply reset it directly. If there's a fault code indicating an issue with a specific sensor or assembly, it's recommended to perform repairs. An engine is a machine capable of converting other forms of energy into mechanical energy, originating in the UK. It can refer to either the power generation device or the entire machine including the power unit (such as gasoline engines, aircraft engines). Types include internal combustion engines (gasoline engines, etc.), external combustion engines (Stirling engines, steam engines, etc.), and electric motors.
20
3
Share

What are the symptoms of a bad ignition coil?

Ignition coil failure symptoms include: 1. Noticeable body vibration at idle; 2. When observing the exhaust pipe outlet, there's obvious intermittent exhaust gas flow with severe pipe vibration, accompanied by clear popping sounds. As gasoline engines evolve towards higher RPM, higher compression ratios, greater power, lower fuel consumption, and reduced emissions, traditional ignition systems no longer meet operational requirements. The core components of an ignition system are the ignition coil and switching device. By enhancing the ignition coil's energy output, the spark plug can generate sufficient spark energy - this constitutes the fundamental requirement for modern engine-compatible ignition systems.
17
4
Share

How Often Should the Transmission Fluid in a Volkswagen Be Changed?

Volkswagen transmission fluid is generally recommended to be changed every two years or approximately 40,000 kilometers. The replacement interval varies for different models. Below are the recommended intervals for changing transmission fluid. Manual Transmission: Manual transmission fluid is generally recommended to be changed every three years or approximately 100,000 kilometers. Automatic Transmission: Automatic transmission fluid is generally recommended to be changed every two years or approximately 40,000 kilometers. Continuously Variable Transmission (CVT): CVT fluid is generally recommended to be changed every two years or approximately 60,000 kilometers. The methods for changing transmission fluid are as follows: 1. Loosen the drain plug at the bottom of the transmission to drain the old fluid and then refill. 2. Remove the transmission oil pan directly to drain and refill the fluid: This method is more thorough than the previous one, as it removes deposits and impurities from the bottom of the oil pan. 3. Use a circulation machine to change automatic transmission fluid: A smart circulation machine performs dynamic fluid replacement, filtering and cleaning sludge and impurities inside the automatic transmission.
6
1
Share

What is the HOLD button in a car?

HOLD means to maintain. After pressing this button, the automatic transmission enters the hold mode, and the hold mode indicator light on the dashboard will illuminate. The HOLD button adjusts the optimal driving state according to different road conditions, effectively preventing the transmission from frequent shifting. During overtaking, it forces downshifting and prevents upshifting. The working principle of an automatic transmission is as follows: After the engine starts, the crankshaft drives the pump impeller to rotate through the flywheel. The centrifugal force generated by the rotation causes the working fluid between the pump impeller blades to be thrown from the inner edge to the outer edge. When the turbine speed is relatively low, the working fluid flowing out of the turbine moves backward and impacts the front of the stator blades. Since the stator is restricted by the one-way clutch and cannot rotate backward, the stator blades redirect the backward-flowing working fluid to push the pump impeller blades forward, promoting the rotation of the pump impeller and thereby increasing the torque acting on the turbine. As the turbine speed increases, the circumferential velocity becomes larger. When the resultant velocity of the tangential speed and circumferential velocity starts to point toward the back of the stator blades, the torque converter reaches the critical point. When the turbine speed further increases, the working fluid will impact the back of the stator blades. The HOLD function can be used in the following situations: Slippery roads: For example, starting on snow. Starting in snow with 2nd gear instead of 1st gear is more stable. When starting on snow, you can place the gear lever in position 2 and press HOLD, so the transmission will maintain the gear ratio of 2nd gear, making the start smoother. Continuous curve driving: When driving on continuous curves, the automatic transmission in normal mode may shift frequently due to the driver's control of the accelerator pedal. Pressing the HOLD button in D4 gear enters the hold mode, and the transmission will stay in 3rd gear, not only reducing transmission wear but also allowing the transmission to continuously output greater torque during driving, improving acceleration performance and making the ride smoother. Mountain roads or continuous slopes: Pressing the HOLD button in D4 or 2nd gear enters the hold mode. When going uphill, acceleration becomes more powerful. When going downhill, the drag is greater and safer, and it also avoids wear caused by frequent shifting of the transmission.
5
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.