What Type of Fire Extinguisher Should Be Used in a Car?

What does the ramp mean in Subject 1?

Ramp is a road on the right side of the highway exit or entrance (generally 150-200 meters). After the entrance ramp is the acceleration lane, and the exit ramp is immediately after the deceleration lane. The speed in the ramp is generally required to be below 40km/h, and the speed in the acceleration lane should be rapidly increased to above 60km/h. The relevant introduction is as follows: 1. Content: Subject 1 refers to the driver's theoretical test, which is conducted at the vehicle management office and is a mandatory licensing test for driver's license applicants. The test content includes the most basic knowledge such as driving theory foundation, road safety laws and regulations, traffic signals, traffic rules, plus local regulations. The time of the driver's theoretical test is arranged by the local vehicle management office. 2. Driver's license test: Subject 1 is part of the teaching and examination syllabus for motor vehicle driver training. The examination part of this syllabus is divided into three subjects, which are organized by the traffic management department of the public security organ. The examination sequence is carried out in the order of Subject 1, Subject 2, and Subject 3. After passing the previous subject examination, you can participate in the next subject examination; if the previous subject examination is not passed, you will continue to take the examination for that subject.

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How to align with the dashed line on the slope in Subject 2?

Align the left water channel of the car's hood with the dashed line and ensure the car's side is parallel to the dashed line, so that the center of the steering wheel aligns with the dashed line on the road. The Subject 2 test includes reversing into a garage, parallel parking, stopping and starting on a slope, turning at a right angle, and driving along a curve. The details are as follows: 1. Positioning: The first step when going up the slope is to align with the right yellow line. The method is to align the one-third point of the right side of the engine cover with the yellow line on the road, indicating proper alignment. When stopping on the slope, observe the dot on the windshield wiper, the parking post, and your eyes forming a straight line, then stop once aligned. When pressing the brake with your right foot, press the clutch with your left foot and hold the brake steady. 2. Starting: When starting, slowly lift the clutch with your left foot. When the car body slightly vibrates and the hood rises a bit, quickly release the brake with your right foot while keeping the clutch steady with your left foot. Remember not to lift the clutch too much or too quickly when starting, as both can cause the car to stall.

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How Often Should a Car's Refrigerant Be Replenished?

Refrigerant in a car should be replenished every five to eight years. Here are some tips for selecting the right refrigerant: 1. Consider environmental requirements: Always choose refrigerants that comply with national environmental regulations. 2. Consider the cooling temperature requirements: Depending on the refrigerant temperature and cooling conditions, select high-temperature (low-pressure), medium-temperature (medium-pressure), or low-temperature (high-pressure) refrigerants. Typically, the standard evaporation temperature of the chosen refrigerant should be at least 10°C lower than the cooling temperature. Other factors to consider include the cooling conditions of the refrigeration system and the operating environment. The operating condensation pressure should not exceed the safe limits specified for the compressor. Since car air conditioning systems can only use outside air as the cooling medium, they are frequently affected by factors such as ambient temperature, wind speed, solar radiation, and heat radiation. These operating conditions necessitate the use of high-temperature (low-pressure) refrigerants, with R12 being the traditional choice. 3. Consider the properties of the refrigerant: Based on the thermodynamic, physical, and chemical properties of the refrigerant, opt for those that are non-toxic, non-explosive, and non-flammable.

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How to Adjust the Valve Clearance of Tiggo 3?

Tiggo 3 valve clearance adjustment method: 1. Preheat the engine until the coolant temperature reaches 80 degrees Celsius, open the timing mark inspection hole on the clutch housing and the cylinder head cover, and ensure that the cylinder head bolts are tightened to the specified torque; 2. Rotate the crankshaft to align the 0 mark on the flywheel with the mark line on the clutch housing, confirm that the curved surface of the intake and exhaust valve rocker arms of the first cylinder is in contact with the base circle of the camshaft cam, that is, the first cylinder piston is at the compression top dead center, and the valves are in the closed position at this time; 3. Loosen the lock nut 2 of the adjustment screw 1, use a screwdriver to turn the adjustment screw so that the gap A between the lower end face of the screw and the upper end face of the valve stem 3 is the specified clearance value, keep the screwdriver still, tighten the lock nut to the specified torque, and then use a feeler gauge to insert into gap A for rechecking. This way, the intake and exhaust valve clearances of the first cylinder can be adjusted; 4. Rotate the crankshaft clockwise. For a 4-cylinder engine, every 180 degrees of rotation, the valve clearance of the next firing cylinder can be adjusted in the ignition order of 1, 3, 4, 2. For a 3-cylinder engine, every 240 degrees of rotation, the valve clearance can be adjusted in the ignition order of 1, 2, 3.

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Should the Lynk & Co use 92 or 95 gasoline?

According to the official vehicle manual recommendation, the Lynk & Co should use 95-octane gasoline. In addition to checking the appropriate gasoline grade in the vehicle manual, you can also find it on the fuel tank cap, which will be clearly marked. Typically, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92-octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95-octane gasoline. However, with the application of new technologies, the gasoline grade cannot be solely determined by the compression ratio. Even high-compression engines can be tuned to use lower-octane gasoline. This is because factors other than the compression ratio also play a role, such as ignition timing, turbocharging technology, and Atkinson cycle technology. Generally, the higher the gasoline grade, the higher the octane number and the better the anti-knock performance. 92-octane gasoline contains 92% isooctane and 8% n-heptane, while 95-octane gasoline contains 95% isooctane and 5% n-heptane. If the Lynk & Co occasionally uses the wrong gasoline grade, simply switch back to the correct grade after consumption. However, long-term use of the wrong gasoline grade can have the following effects: For vehicles recommended for lower-octane gasoline, using higher-octane gasoline will not cause damage, but the increase in octane number will alter the fuel's ignition point, leading to delayed combustion in the engine. This means both the engine's power output and thermal efficiency will decrease, resulting in poorer performance as experienced in real-world driving. For vehicles recommended for higher-octane gasoline, using lower-octane gasoline can cause engine knocking. Because the octane number is significantly lower, the gasoline's ignition point decreases, causing it to ignite prematurely during the compression stroke. If the fuel ignites before the spark plug fires during the compression stroke, resistance will occur during the upward stroke. This resistance makes the engine run very unstably. If the knocking is imperceptible, it only increases noise and does not significantly damage the engine. However, noticeable knocking indicates severe engine conditions, where vibrations not only affect driving stability but also cause abnormal wear on pistons and cylinders, potentially leading to cylinder scoring in severe cases.

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How many points are deducted for making a U-turn on a solid yellow line?

Making a U-turn on a solid line is a traffic violation. According to Article 93 of the Road Traffic Safety Law, violators will be fined 200 yuan and receive 3 penalty points. Generally, on long roads, solid white lines are often found in the middle section or before intersections. If the lines are yellow dashed or white dashed, U-turns are allowed. However, U-turns are strictly prohibited on any solid lines. Situations where U-turns are allowed: If there is a clear U-turn sign at the intersection, U-turns are permitted. If there is a U-turn traffic light, follow its instructions. If there is no traffic light, make a U-turn based on the specific situation, ensuring it does not obstruct other vehicles or pedestrians. U-turns are allowed at intersections without explicit "No U-turn" or "No Left Turn" signs: If there is no clear prohibition, U-turns are permitted. "No explicit prohibition" means the intersection lacks signs like "No U-turn," "No Left Turn," or solid center lines, allowing confident U-turns. U-turns are also allowed on yellow grid lines: Yellow grid lines are no-parking zones marked at intersections prone to congestion, important entrances, or other designated areas. Stopping on these lines (including waiting at traffic lights) is a violation. Although parking is prohibited in yellow grid zones, U-turns are allowed. If there is no central barrier, yellow grid lines are equivalent to "U-turn permitted." Intersections with U-turn traffic lights: This is straightforward—if there is a U-turn light, follow it; U-turns are only allowed on green. When "No Left Turn" and "U-turn Permitted" signs appear together: U-turns are allowed, but left turns are prohibited. Note that "No U-turn" is not the same as "No Left Turn." Things to note when making a U-turn at an intersection: Observe road markings—if they are solid lines, U-turns are prohibited under any circumstances. Continue driving to find a suitable spot. If there is a "No Left Turn" sign, even without a "No U-turn" sign, U-turns are not allowed at that intersection because U-turns inherently involve left turns. U-turns must be made from the innermost left-turn lane. If you are in the second left-turn lane, U-turns are not permitted at that intersection. Always yield to straight-moving vehicles. Make a U-turn only if it does not interfere with their normal flow; otherwise, you will bear full responsibility for any accidents. Near intersection stop lines, lanes often have guiding arrows. The leftmost lane may not always have a left-turn arrow—if it has a straight arrow, U-turns are prohibited even without explicit "No U-turn" signs. U-turns on crosswalks are also violations.

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What Type of Fire Extinguisher Should Be Used in a Car?

What does the ramp mean in Subject 1?

How to align with the dashed line on the slope in Subject 2?

How Often Should a Car's Refrigerant Be Replenished?

How to Adjust the Valve Clearance of Tiggo 3?

Should the Lynk & Co use 92 or 95 gasoline?

How many points are deducted for making a U-turn on a solid yellow line?

Are Buick Cars Fuel-Consuming?

Is there no fee for Subject 4?

Can a Car Air Conditioner Be Powered by an External Source?

What are the differences between Mercedes-Benz S and Maybach S?