Does the Three-Way Catalytic Converter Need Regular Cleaning?

Why Do Large Vehicles Use Air Horns?

Air horns play a powerful warning role during driving. Principle of Air Horns: They generally consist of four main components: an air source, a control switch, a sound generator, and a sound amplifier. The air source is the origin of compressed gas, which can be either a DC electric air pump or the vehicle's own air supply. The control switch is typically an electromagnetic switch connected to the horn button in the cab. The sound generator mainly contains a diaphragm made of materials such as paper, silicone, or metal, which produces a whistle sound through high-frequency vibration. The sound amplifier has a tapered structure (narrow at one end and wide at the other) to make the sound louder and travel farther. Classification of Air Horns: Currently, there are two common types of air horns: electric air horns and electronically controlled air horns. Electric air horns use a DC motor-driven air pump to generate compressed air, which is then directed into the horn through an air tube to produce the whistle sound. This type of horn can be used on motorcycles and small cars.

19

1

Share

Which intersections do not allow direct right turns?

When auxiliary signs such as 'No right turn on red' or 'Right turn prohibited when red light is on' are displayed at the intersection traffic signal, direct right turns are not allowed. Arrow-shaped traffic signals: A red prohibition arrow indicates that right turns are not allowed. Vehicles must strictly follow the traffic signals. Violating the traffic signal, whether going straight or turning right, is considered running a red light and results in a 6-point penalty. Circular traffic signals without additional signs: Motor vehicles can make a right turn at a red light without it being considered running a red light. However, drivers must yield to pedestrians and proceed with caution to avoid accidents. Circular traffic signals with additional signs: If there are restrictions for right-turning vehicles, drivers must stop and wait until right turns are permitted before proceeding.

19

0

Share

How many cubic meters of stones can a tandem-axle truck carry?

Generally around 10 cubic meters. Dimensions are 5.2×2.3×1.2M. Structure of dump trucks: The dump truck adopts SINOTRUK's specialized dump truck chassis, with the cargo box floor and side panels welded from high-quality steel plates, making it particularly suitable for transporting materials such as stones, ores, steel blocks, and soil. The sub-frame serves as the foundational component for installing the lifting mechanism and cargo box, as well as a reinforced fixed connection with the truck chassis. Different models of dump trucks use alloy steel plates, pressed into channel-section longitudinal and cross beams and welded together. The rear of the sub-frame employs a triangular structure to increase the distance between the cargo box supports, ensuring stability during vehicle movement or lifting operations. Precautions: When unloaded or not in use for an extended period, ensure the top cover is retracted into the front visor. Before starting work each day, check that there are no debris on top of the cover to prevent it from being drawn into the visor when retracted, which could damage the cover. It is strictly prohibited to open or close the top cover while the cargo box is in a lifted position.

20

0

Share

Why can oncoming vehicles go straight when the left turn light is green?

Oncoming vehicles can go straight when the left turn light is green because at intersections with only red, yellow, and green lights, vehicles can proceed in three directions when the green light is on. When going straight while both left turn and straight lights are green: This will be penalized as driving not in the specified direction, resulting in a fine and 2 demerit points. The rules for combined left turn and straight lanes depend on the direction of travel. If you need to turn left, check if the left turn signal is green; if you want to go straight, check if the straight light is green. When going straight while the straight light is green and the left turn light is red: This is usually treated as running a red light, resulting in a fine and 6 demerit points. If a left-turning vehicle causes an accident when there are no traffic signals, signs, or police officers, and it proceeds ahead of straight-going vehicles at the intersection, the left-turning vehicle will bear full responsibility.

3

2

Share

What is the width of the serpentine driving lane?

The width of the serpentine driving lane is 3.5m. Waiting in non-testing areas: If you see someone taking the serpentine driving test ahead, do not drive your vehicle into the area. Otherwise, both drivers will be disqualified. The following vehicle can wait in the non-testing area. Stopping during the test will result in disqualification. Speed control: Drive slowly through the S-curves by coordinating the clutch or lightly applying the brakes. After entering the curve, try to take a wide path. When entering a right curve, keep the right wheel close to the right boundary line. For a left curve, perform the opposite operation.

6

4

Share

Will Using Wipers on a Dusty Windshield Cause Scratches?

Using wipers on a dusty windshield will not cause scratches. Maintaining cleanliness: When there are streak marks on the glass surface, the wiper blade may be dirty. You can sprinkle alcohol on a towel and wipe the surface of the wiper blade. Cleaning it once a month can improve the performance of the wipers. Checking the rubber: If the wipers make unusual noises while operating, the rubber blade may be aging or cracked. If the wear is not severe, you can use sandpaper to smooth out rough spots on the surface. Avoiding sunlight: Park the car in a shaded area where it is not exposed to sunlight, such as a garage. Summer is a season that can be particularly harsh on cars. Wiper blades are rubber products, and exposure to sunlight will only accelerate their aging process. Refilling fluid: Adding plain water directly to the windshield washer fluid reservoir is not conducive to the long-term maintenance of the windshield or wiper blades. To ensure the longevity of the components, always use a proper windshield washer fluid. Refill the washer fluid promptly to be prepared for unexpected needs.

9

5

Share

Does the Three-Way Catalytic Converter Need Regular Cleaning?

Why Do Large Vehicles Use Air Horns?

Which intersections do not allow direct right turns?

How many cubic meters of stones can a tandem-axle truck carry?

Why can oncoming vehicles go straight when the left turn light is green?

What is the width of the serpentine driving lane?

Will Using Wipers on a Dusty Windshield Cause Scratches?

What Causes the Left Car Door to Squeak?

How Long After Windshield Replacement Can You Apply Tint Film?

Can Beginners Listen to Music While Driving?

What Model is the Mercedes-Benz Triangle Logo?