How to Check Deductions in Subject 2 Exam?

Why Should You Buy a Car at a 4S Shop?

4S shops have a certain scale and are more formal, with guaranteed quality and service. The differences between dealers and 4S shops: 1. Ownership: The cars in 4S shops are owned by the manufacturer, while dealers are usually individually invested, and the ownership of the cars belongs to the dealers themselves. 2. Service brand: 4S shops serve only one car brand, while dealers sell cars of various brands. 3. Service scope: 4S shops integrate after-sales services such as car sales, maintenance, parts, repairs, and information services; dealers are only responsible for sales and do not provide after-sales services such as licensing. 4. Maintenance time: Cars sold by 4S shops can receive after-sales services such as maintenance and repairs at any 4S shop nationwide within the warranty period, while dealers' after-sales services usually have time restrictions.

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Should You Use Cold or Warm Air Conditioning When Driving in the Rain?

When driving in the rain, it is advisable to use cold air conditioning because the cold air blown onto the windshield forms a thin layer of cold air on the surface, which prevents carbon dioxide from condensing on the glass, effectively defogging it. You can also purchase defogging sprays or anti-fog towels from auto parts stores. Apply the defogging spray to the interior glass surfaces and wipe it clean. This not only removes dirt from the glass but also forms a thin, transparent protective film that prevents moisture from condensing into fog on the glass. The formation of fog on the glass is caused by temperature differences and humidity. When water vapor encounters cold surfaces, it turns into fog. Common defogging methods include: 1. Air Convection Method: Lower the windows on both sides of the car to allow air circulation inside the vehicle, balancing the temperature inside and outside. This method is only suitable for light drizzles, as heavy rain will quickly wet the interior. 2. Cold Air Defogging Method: Using cold air from the air conditioning can quickly lower the interior temperature, making it suitable for emergency defogging while driving. The downside is that it can feel too cold on rainy days, and front-seat passengers may catch a cold if not dressed warmly. 3. Warm Air Defogging Method: Turning on the warm air increases the interior temperature, drying the moisture on the glass to achieve defogging. The drawback is that the fog may initially worsen when the warm air is first turned on, making this method more suitable for use before driving. 4. External Circulation Defogging: Activate the external circulation mode and adjust the air vents to blow air toward the windshield and footwell or just the windshield. While this method is simpler and warmer than using cold air, it is not as fast-acting and may take some time to show results.

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Is the Yunnei 156 horsepower the 4102 model?

Yunnei 156 horsepower is not the 4102 model, but the 4105. The 4102 engine is 120 horsepower, not 156 horsepower. Here is additional information: 1. The power of the engine is not equal to the power of the vehicle, as there are intermediate losses in mechanical transmission. Additionally, designs that increase the thickness and weight of the vehicle body for safety reasons can also lead to a loss in engine power. Therefore, a vehicle with a small-displacement engine is not necessarily slower or inferior in performance compared to one with a high-power engine. 2. Under the same displacement conditions, higher power is better. Some manufacturers use advanced technologies to increase power, such as intake valve stroke control, EGR, 5-valve systems, etc. While these technologies enhance power, they also mean an increase in engine costs.

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How to Replace the Camry Cabin Air Filter?

The replacement method for the Camry cabin air filter is as follows: 1. Remove the dampers on both sides of the glove box to take out the glove box, revealing the air conditioning blower and the cabin air filter; 2. Release the clip on the right side of the cabin air filter cover and remove the old filter; 3. When installing the new cabin air filter, ensure the arrow on the filter faces upward for optimal dust filtration; 4. Replace the cabin air filter cover and secure the right-side clip; 5. Reinstall the glove box to its original position and reattach the dampers on both sides to their corresponding positions on the glove box. The functions of the cabin air filter include: 1. Ensuring the filter fits tightly against the housing to prevent unfiltered air from entering the cabin; 2. Filtering out dust, pollen, and solid particles from the air; 3. Absorbing moisture, soot, ozone, odors, carbon oxides, sulfur dioxide, and carbon dioxide from the air; 4. Maintaining clean cabin air free from bacteria, thus creating a healthy environment.

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What is the impact of turning off the car directly in D gear?

Turning off the car directly in D gear does not have a significant impact on the vehicle. 1. The automatic start-stop system turns off the engine in D gear, but the key issue lies in how to restart the engine after turning it off in D gear—improper operation can damage the transmission. 2. If the engine is turned off in D gear while the car is parked, you can shift back to N or P gear; if the engine stalls while driving, you must shift to N gear to restart, as the engine cannot be restarted in D gear. Here is additional information: 1. Engine stalling, also known as shutdown, occurs when the reactor is operating at a significant reaction rate. If the inlet temperature is lowered to reach the lower limit of the multiple-state region, the reaction rate suddenly drops sharply, and the reaction essentially stops. 2. Gear shifting (changing gears) refers to the transmission, which is used to alter the torque and speed of the engine crankshaft to meet the varying requirements of driving wheel traction and speed under different driving conditions, such as starting, accelerating, driving, and overcoming various road obstacles.

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How many hours is optimal for vacuum extraction of LNG cylinders?

There is no specific time limit for this; it should be determined based on the usage condition of the cylinder. When the vehicle leaves the factory, the vacuum level in the interlayer of an LNG heavy-duty truck's cylinder is around 3*10-3Pa, providing excellent insulation. However, as usage time increases, the vacuum level in the interlayer may decrease, causing the internal pressure of the LNG cylinder to rise, which in turn leads to frequent venting by the safety valve. Advantages of LNG trucks: 1. Safe and reliable: LNG has a higher ignition point than gasoline and diesel, and its explosion limit is nearly four times higher than that of gasoline. Even in the event of a leak, spontaneous combustion or explosion is highly unlikely, ensuring high safety. 2. Clean and environmentally friendly: Compared to gasoline and diesel, LNG's comprehensive exhaust emissions are reduced by nearly 85%, and it contains virtually no sulfides, making it extremely eco-friendly and easier to upgrade to the China VI emission standard. 3. Long driving range: Compared to CNG vehicles, a 335L LNG cylinder can provide a driving range of over 500 kilometers.

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How to Check Deductions in Subject 2 Exam?

Why Should You Buy a Car at a 4S Shop?

Should You Use Cold or Warm Air Conditioning When Driving in the Rain?

Is the Yunnei 156 horsepower the 4102 model?

How to Replace the Camry Cabin Air Filter?

What is the impact of turning off the car directly in D gear?

How many hours is optimal for vacuum extraction of LNG cylinders?

Is MRV a Carbon Emission Standard?

Is it okay to occasionally use 92 octane gasoline?

How about the MT manual transmission?

What is the reason why the car's hazard lights keep flashing and cannot be turned off?