What does it mean when the reverse camera displays no video signal?

Is 3500 RPM at 120 km/h Normal?

An engine speed of 3500 RPM at a vehicle speed of 120 km/h is considered normal. The RPM constantly reflects the engine's operating condition. If the RPM is too low, fuel combustion in the cylinders will be incomplete, leading to easy carbon buildup in the engine, which can cause significant damage over time. Conversely, excessively high RPM can lead to engine burnout. Engine speed is related to several factors, including the engine's low-end torque, the number of transmission gears, and the type of engine, as detailed below: Engine's low-end torque: Generally, engines with stronger low-end torque tend to have lower RPM during high-speed cruising. This is because high-speed cruising in most vehicles primarily overcomes wind resistance and rolling resistance. Number of transmission gears: Besides the influence of engine power, the transmission plays a crucial role in determining RPM. Simply put, under the same power conditions, a transmission with a wider gear ratio range will result in lower RPM during high-speed cruising. Type of engine: Turbocharged engines typically maintain lower RPM during high-speed cruising compared to naturally aspirated engines. This is due to the broader maximum torque RPM range of turbocharged engines.

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What is the fuel consumption of the Roewe RX5 MAX?

The Roewe RX5 MAX currently has 5 models on sale. Among them, the Roewe RX5 MAX 2022 1.5T Automatic Youwei Flagship Edition, Premium Edition, and Luxury Edition are equipped with a 181-horsepower engine, with an NEDC fuel consumption of 7.5L per 100km. The Roewe RX5 MAX 2022 2.0T Automatic Youwei Ultimate Edition and Honor Edition are equipped with a 231-horsepower engine, with an NEDC fuel consumption of 8.8L per 100km. The fuel tank capacity of the Roewe RX5 MAX is 55L. The distance each model can travel on a full tank of fuel is as follows: Models equipped with the 181-horsepower engine can travel 55/7.5*100=733km on a full tank. Models equipped with the 231-horsepower engine can travel 55/8.8*100=625km on a full tank. Vehicle fuel consumption is directly influenced by five major factors: driving habits, the vehicle itself, road conditions, natural wind, and environmental temperature. Specific factors that can increase fuel consumption include: Driving habits: Aggressive driving behaviors such as sudden acceleration, frequent overtaking, and not easing off the throttle before a red light can increase fuel consumption. The vehicle itself: Vehicles with larger engine displacements generally consume more fuel than those with smaller displacements because larger displacements typically produce more power, requiring more gasoline for combustion. Heavier vehicles also consume more fuel due to the greater driving torque needed. Road conditions: Driving on unpaved roads, muddy roads, soft surfaces, or mountainous terrain increases resistance and fuel consumption. Natural wind: Driving against the wind or on windy days increases vehicle resistance and fuel consumption. Low environmental temperatures: When the engine block is cold, the injected gasoline is harder to atomize, requiring more fuel for combustion, thus increasing consumption. Additionally, in cold temperatures, the engine's computer may control the engine to run at higher RPMs to warm up, which also increases fuel consumption.

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How many points are deducted for making a U-turn at a red light?

Making a U-turn at a red light will result in a deduction of 6 points. This is because making a U-turn at a red light violates the regulations of the Road Traffic Safety Law. According to the relevant provisions in the "Scoring Standards for Road Traffic Violations": driving a motor vehicle in violation of traffic signal lights will result in a deduction of 6 points for each offense. Examination scoring criteria: U-turn timing: Failure to correctly observe traffic conditions and choose the appropriate time for a U-turn will result in disqualification; U-turn location: Choosing an inappropriate location for a U-turn will result in disqualification; U-turn technique: One-step U-turn (using left or right intersections for a U-turn): When using the right intersection for a U-turn, turn on the right turn signal, slow down and select an appropriate gear, observe the traffic on the right, turn right, proceed appropriately, then turn on the left turn signal, observe the traffic ahead and behind, turn left, and complete the one-step U-turn safely; when using the left intersection for a U-turn, turn on the left turn signal, slow down and shift to a lower gear, observe the traffic on the left and ahead and behind, and turn appropriately based on the intersection position to complete the one-step U-turn. Road U-turn: Choose a wide section of the road with good visibility, slow down and shift to a lower gear, turn on the left turn signal, use the interior and exterior rearview mirrors and look sideways to observe the traffic ahead and behind, confirm safety, and quickly turn left; if the front of the vehicle reaches the edge of the road before the rear does, use the interior and exterior rearview mirrors and look sideways to observe the traffic ahead and behind, confirm safety, shift to reverse, start the vehicle and back up to a suitable position, stop, turn on the left turn signal, use the interior and exterior rearview mirrors and look sideways to observe the traffic ahead and behind, confirm safety, and quickly turn left until the front and rear of the vehicle are opposite to the original direction, start moving forward, and complete the U-turn; if the U-turn is completed in one step, start moving forward and complete the U-turn.

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Why is the car dashboard key light flashing?

The flashing key icon on the dashboard indicates that the anti-theft system is activated. When this indicator light is on, the car cannot be started. Multiple failed attempts to start the engine will lock it, which is also known as engine immobilization. The anti-theft indicator light has two states: armed and disarmed, and it flashes at different frequencies for each state. The indicator light will flash regularly, and the flashing frequency also varies when unlocking and driving. Components of the car dashboard: 1. Speedometer and odometer: Consists of two gauges, one for speed and the other for mileage. 2. Tachometer: The tachometer is usually located within the instrument panel. 3. Indicator and warning lights: Timing belt indicator, exhaust temperature warning light, brake warning light, ABS warning light, etc. 4. Oil pressure gauge: The sensor for the oil pressure gauge is a piezoresistive sensor, which is fixed to the engine oil line with threads. 5. Water temperature gauge: The sensor for the water temperature gauge is a thermistor sensor, which is fixed to the engine cooling water passage with threads. 6. Fuel gauge: The fuel gauge contains two coils, located on the "F" and "E" sides respectively.

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Why doesn't the car move when pressing the accelerator?

The reasons why a car cannot move when pressing the accelerator should be determined based on specific conditions, as follows: If the accelerator is pressed, the tachometer shows an increase in engine speed, but the car cannot continue moving, it indicates a clutch failure. The clutch needs to be inspected to determine whether its working condition is normal. If the accelerator is pressed, the tachometer shows no change in speed, and the car does not move, it means the car is not injecting fuel. This could be due to issues with the fuel supply system or the accelerator cable. The fuel supply system and accelerator cable should be checked promptly, and the fuel supply system may also need appropriate cleaning. If black smoke appears when pressing the accelerator, but the car does not move, it indicates a fault in the ignition system. The car's ignition should be checked to see if it is functioning properly. The power source of a car is mainly provided by the combination of the intake system, fuel supply system, related electronic circuits, and electronic components. Therefore, when the car cannot move despite pressing the accelerator, these parts should be inspected in detail to see if they are affecting the car's movement.

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What type of vehicle is a light-duty flatbed truck?

According to the regulations on permissible driving license categories, light-duty flatbed trucks fall under the category of small vehicles and can be driven with C1, C2, C3, or C4 driver's licenses. A light-duty truck is defined as a cargo vehicle with a length less than 6000mm and a total mass less than 4500kg, excluding mini cargo vehicles, three-wheeled vehicles, and low-speed trucks. Additional information: 1. Light-duty cargo vehicles are a type of truck. According to China's motor vehicle specifications, 'light-duty' is defined as having a total mass of 6000kg or less. Additionally, trucks are categorized into four types based on load capacity: heavy-duty, medium-duty, light-duty, and mini. 2. With changes in the market demand structure and product adjustments for cargo vehicles, competition in the cargo vehicle market has evolved from 'medium trucks' to a diverse competitive landscape encompassing heavy-duty trucks, medium-duty trucks, light-duty trucks, and mini trucks. As a result, competition in China's cargo vehicle market has shifted from being broad to more segmented, with each segment showcasing distinct competitive dynamics.

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What does it mean when the reverse camera displays no video signal?

Is 3500 RPM at 120 km/h Normal?

What is the fuel consumption of the Roewe RX5 MAX?

How many points are deducted for making a U-turn at a red light?

Why is the car dashboard key light flashing?

Why doesn't the car move when pressing the accelerator?

What type of vehicle is a light-duty flatbed truck?

What are the causes of low oil pressure in diesel engines?

How Many Types of Automotive Turbochargers Are There?

What to Do When Running Out of Fuel on the Highway?

What should be paid attention to in the maintenance of new energy vehicles?