Where to Add Engine Oil in a Car?

What is the reason for the speedometer not working?

Most of the time, it is due to a damaged speed sensor, which requires repair. Below are some related extended information: 1. Speedometer: It actually consists of two gauges. One is the speedometer, and the other is the odometer. Traditional speedometers are mechanical. A typical mechanical odometer is connected to a flexible shaft, inside which there is a steel cable. The other end of the flexible shaft is connected to a gear in the transmission. The rotation of the gear drives the steel cable to rotate, which in turn rotates a magnet inside the speedometer's housing. 2. Odometer: The odometer is a digital instrument. It engages with the worm gear on the speedometer's drive shaft through the transmission gears of the counter drum, causing the counter drum to rotate. Its characteristic is that when the upper drum completes one full rotation, the lower drum rotates 1/10 of a turn. Like the speedometer, modern odometers also include electronic versions, which obtain mileage signals from speed sensors. The accumulated mileage data in electronic odometers is stored in non-volatile memory, allowing the data to be preserved even when there is no power.

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What happens if a car's radiator runs out of water?

The car cannot continue to drive if the radiator runs out of water, and severe cases may lead to engine failure. The functions of a car's radiator are: 1. The cooling system of the radiator dissipates excess and unnecessary heat from the engine, ensuring the engine operates at normal temperatures under various speeds or driving conditions; 2. The radiator is a heat exchanger for water-cooled engines, maintaining the engine's normal operating temperature through air convection cooling; 3. Once the engine coolant in the radiator boils and vaporizes due to high temperature, causing the pressure to exceed the set value, the radiator cap releases the pressure by overflowing, reducing the coolant and preventing the cooling system pipes from bursting.

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How many points are deducted for not turning off the engine when getting off the car in Subject 3?

In some regions, it is not necessary to turn off the engine, and no points will be deducted. However, in other regions, turning off the engine is required, and failing to do so will result in a deduction of 100 points. It is best to clarify this before the exam. Below is an introduction to the relevant content: 1. Subject 1: Road traffic safety laws, regulations, and related knowledge test. It is a written test conducted on a computer, with a full score of 100. A score of 90 or above (including 90) is considered passing. 2. Subject 2: Field driving skills test. It involves actual driving in a designated area and is only categorized as pass or fail. The test includes five mandatory tasks performed in sequence: reversing into a parking space, parallel parking, S-curve driving, right-angle turning, and starting and stopping on a slope. The full score is 100, and a score of 80 or above (including 80) is considered passing. 3. Subject 3: Road driving skills test. It involves actual driving on a road or simulated area, with a full score of 100. For large buses, a score of 90 or above is passing; for large trucks, 80 or above; and for other vehicle types, 70 or above. 4. Subject 4: Safe and civilized driving-related knowledge. It is a written test with a full score of 100, and a score of 90 or above (including 90) is considered passing.

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Does a Manual Transmission Have a Gearbox?

Manual transmissions do have a gearbox. The gearbox is a mechanism used to alter the speed and torque from the engine, capable of fixing or changing the gear ratio between the output and input shafts in stages. It can modify the transmission ratio, direction of rotation, and set the neutral position. Types of gearboxes include: 1. Automatic transmission; 2. Semi-automatic transmission; 3. Continuously variable transmission (CVT). Maintenance methods for gearboxes: 1. Regularly check the gearbox oil level; 2. Understand the replacement cycle of gearbox oil; 3. Replace the gearbox oil correctly. The gearbox is not completely sealed, allowing water and dust to enter through air vents, so the transmission requires regular maintenance.

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Which gear should be used for a right turn in Subject 3?

You can use third gear for turning, but the speed should be kept around 20 km/h. Alternatively, you can use second gear, but you should not use idle speed. After turning, you should immediately shift to third gear. Below is an introduction to the relevant content: 1. Subject 1: A written test on road traffic safety laws, regulations, and related knowledge, conducted on a computer. The full score is 100, and a score of 90 or above (including 90) is required to pass. 2. Subject 2: A practical driving skills test conducted on a closed course. The result is either pass or fail. It includes five mandatory tasks performed in sequence: reverse parking, parallel parking, S-curve driving, right-angle turning, and hill start and stop. The full score is 100, and a score of 80 or above (including 80) is required to pass. 3. Subject 3: A road driving skills test conducted on actual roads or simulated environments. The full score is 100. For large buses, a score of 90 or above is required to pass; for large trucks, 80 or above; and for other vehicle types, 70 or above. 4. Subject 4: A written test on safe and civilized driving knowledge. The full score is 100, and a score of 90 or above (including 90) is required to pass.

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Why Does the Driving Range Increase Over Time?

Many components operate under relatively tight conditions initially, resulting in slightly higher resistance. After some driving, these components gradually reach their optimal operating state, reducing resistance and consequently lowering fuel consumption, which in turn increases the driving range. Key considerations include the following two points: 1. Pay attention to fuel consumption: Driving range = remaining fuel / fuel consumption. The more significant factor affecting this is fuel consumption. Different fuel consumption values can lead to vastly different driving range estimates. Since vehicle operating conditions vary, actual fuel consumption changes based on the driver's demands. 2. Comprehensive fuel consumption: A comprehensive fuel consumption value can be set at the factory, such as using the NEDC cycle as the initial benchmark. After the owner takes possession of the vehicle, various methods can be used to set fuel consumption, such as instantaneous or steady-state fuel consumption. Calculating driving range using instantaneous fuel consumption can lead to rapid fluctuations, potentially resulting in an increasing driving range. In contrast, using steady-state fuel consumption averages values over a longer period for more stable estimates.

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Where to Add Engine Oil in a Car?

What is the reason for the speedometer not working?

What happens if a car's radiator runs out of water?

How many points are deducted for not turning off the engine when getting off the car in Subject 3?

Does a Manual Transmission Have a Gearbox?

Which gear should be used for a right turn in Subject 3?

Why Does the Driving Range Increase Over Time?

What is the structure of a tire?

Why Wasn't I Penalized for Making a U-Turn Over Double Yellow Lines?

What is the boundary when meeting on a curve?

What type of engine oil should be used for the 10th-generation Civic?