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What is the situation with the three lights of a traffic signal?

1 Answers
RyderFitz
07/30/25 8:27am
Here is the classification of traffic signals: 1. Red light signal: The red light signal is an absolute prohibition signal. When the red light is on, vehicles are prohibited from passing. Right-turning vehicles may pass if they do not hinder the passage of released vehicles and pedestrians. 2. Green light signal: The green light signal is a permission signal. When the green light is on, vehicles and pedestrians are allowed to pass, but turning vehicles must not hinder the passage of released straight-going vehicles and pedestrians. 3. Yellow light signal: When the yellow light is on, vehicles that have already crossed the stop line may continue to pass. The meaning of the yellow light signal is between the green light signal and the red light signal, having both a prohibition aspect and a permission aspect. When the yellow light is on, it warns drivers and pedestrians that the passage time has ended and will soon switch to a red light. Vehicles should stop behind the stop line, and pedestrians should not enter the crosswalk.
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How to turn on the air conditioning for an old Audi A6?

Introduction to turning on the air conditioning for an old Audi A6: 1. Press the A/C button on the air conditioning panel to turn the cooling mode on or off. 2. Press the AUTO button for automatic mode, which maintains a stable temperature inside the car based on the external temperature. The air temperature, air volume, and airflow distribution are automatically adjusted. Below is an introduction to air conditioning maintenance: 1. Comprehensive air conditioning inspection: When using the air conditioning for the first time in summer, first inspect the air conditioning system, such as checking the refrigerant and whether the air filter is too dirty through the reservoir, and whether there are foreign objects in the radiator. 2. Pay attention to air conditioning cleaning: The air filter should be replaced regularly, otherwise the air conditioning may produce a musty smell. In addition, the condenser should also be cleaned regularly, and the water tank should be removed for thorough cleaning.
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How to Turn On Various Car Lights?

Here are the methods to turn on various car lights: 1. Turn signals: Using the steering wheel as a reference, move the lever clockwise for the right turn signal and counterclockwise for the left turn signal. 2. Fog lights: Rotate the rear fog light or front and rear fog light pattern to the on position. 3. Low beam headlights: Turn the low beam headlight switch to the on position to activate them. 4. High beam headlights: With the steering wheel as a reference, push the lever downward after turning on the headlight switch to activate the high beams. Precautions for using car lights include: 1. Turn on low beam headlights when driving at night. 2. Do not use high beams when driving closely behind another vehicle in the same direction. 3. When passing through sharp curves, slopes, arched bridges, crosswalks, or intersections without traffic lights at night, alternate between high and low beams to signal.
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What is the installation sequence of camshaft bearing caps?

Remove the camshaft bearing caps in the following sequence: first remove the No. 3 bearing cap, then the No. 5 bearing cap, and finally the No. 4 bearing cap. Subsequently, replace with new camshaft bearing caps and complete the entire camshaft bearing cap installation process by installing the No. 4 bearing cap first, followed by the No. 5 bearing cap, and finally the No. 3 bearing cap. Camshaft maintenance methods: Inspect camshaft journal wear. First clean the camshaft thoroughly, then measure directly with an outside micrometer. If the wear exceeds the allowable range, the camshaft should be replaced. Check the clearance between camshaft journals and housing bores. Measure the inner diameter of the journal housing bore with a camshaft journal gauge, then measure the corresponding camshaft journal size with an outside micrometer. The difference between the two is the clearance. Inspect cam lift. With the camshaft positioned as above, place the dial indicator pointer directly against the cam lobe for measurement. Replace when the measured value exceeds the allowable limit. Function of camshaft: The camshaft is a component in piston engines. Its function is to control the opening and closing of valves. Although in four-stroke engines the camshaft rotates at half the speed of the crankshaft (in two-stroke engines the camshaft rotates at the same speed as the crankshaft), it typically still operates at high speeds and must withstand significant torque. Therefore, camshaft design requires high strength and support capabilities, and they are generally made of high-quality alloy steel or alloy steel.
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What is the fuel consumption of the Changan Benben Mini?

According to the latest comprehensive fuel consumption data released by the Ministry of Industry and Information Technology, the Benben MINI has an average fuel consumption of only 5.8L per 100 kilometers. Below is relevant information about the Benben MINI: 1. Body dimensions: The new car measures 3520mm in length, 1570mm in width, and 1490mm in height, with a wheelbase of 2345mm. 2. Powertrain: The new car is equipped with a Changan C10 1.0L four-cylinder engine, which delivers a maximum power of 51.2kW and a maximum torque of 90Nm, all paired with a 5-speed manual transmission. 3. Interior design: The interior features an overall black theme, complemented by gray and white tones, creating a distinct and layered look. The exquisite hot-pressing craftsmanship gives the seat lines a rhythmic and dynamic feel, combining sportiness with elegance.
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Why is the resale value of the BMW 1 Series low?

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