What does a yellow circle with an exclamation mark mean on a car?

How to Calculate the Depth of Thread Turning?

Metric thread depth H=1.0825 × pitch (H is the diameter measurement), while imperial thread depth = 25.4/thread count × 1.25. The minor diameter of the thread = diameter × 1.08 × pitch. Below is relevant information about threads: 1. Dimensions: For an M45 thread, the outer diameter should not be turned to exactly 45mm before thread turning because the threading process may cause the outer diameter to expand. This means that after completing the threading process, the major diameter might exceed 45mm, so the finished outer diameter should be slightly less than 45mm. 2. Shapes: Threads are categorized by their cross-sectional shapes (thread forms) into triangular threads, rectangular threads, trapezoidal threads, and buttress threads, among others. Triangular threads are primarily used for fastening (see threaded joints), while rectangular, trapezoidal, and buttress threads are mainly used for power transmission. Threads located on the external surface of a cylinder are called external threads, and those on the internal surface are called internal threads.

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How to Repair a Manual Hydraulic Forklift That Won't Lift?

Manual hydraulic forklifts may fail to lift due to the following reasons and corresponding repair methods: 1. Excessive wear gap between the valve stem and valve body: The multi-way directional control valve's lifting lever has three grooves. These grooves, in conjunction with the oil circuit assembly, can connect or disconnect the oil circuit, modifying task execution. The gap between the distribution valve stem and valve body is very small, resulting in minimal oil leakage. Therefore, the hydraulic cylinder's descent or tilt is minimal and does not affect task performance. However, when the wear gap becomes too large, under the pressure of the task pump, hydraulic oil may form in the task pipeline connected to the return oil pipe or spillway, automatically returning to the oil tank. If wear occurs, due to prolonged use of the distribution valve or unclean oil, the wear between the valve stem and valve body will accelerate, damaging the sealing surface of the joint and causing oil leakage. During repair, if the valve stem is lightly worn, chrome plating and polishing can be applied; if the valve stem is severely worn, replacement is necessary. 2. Wear of the cone valve: The cone valve prevents oil backflow. If the cone valve is worn and the oil passage does not close tightly, hydraulic oil may backflow, rendering the system ineffective. During repair, grinding or replacement should be performed to eliminate backflow.

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Does a car registered in June 2012 require an annual inspection in 2021?

No annual inspection procedures are required in 2021. Inspection requirements: Motor vehicles registered in 2012 will undergo annual inspection procedures in 2022. For vehicles older than six years but not exceeding ten years, an on-site inspection is required every two years. The annual inspection must be completed within the registration month of the vehicle. Notes: 1. Settle any traffic violations before the annual inspection. Some vehicles may have unresolved traffic violation notices, which must be addressed before the inspection. If the vehicle management office finds any unresolved violations, the vehicle will not pass the inspection. 2. 7-seater SUVs, MPVs, and commercial vehicles are not eligible for the 6-year exemption from inspection. For vehicles exempt from inspection for the first 6 years, every 2 years, the owner must provide proof of compulsory traffic accident liability insurance, payment of vehicle and vessel tax, and evidence of resolved traffic violations and accidents. They can then apply for the inspection label directly from the traffic management department of the public security authority without undergoing a safety technical inspection at an inspection facility.

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What are the speed limits for two-lane and three-lane highways in the Subject 1 test?

For roads with 2 lanes in the same direction, the minimum speed in the left lane is 100 kilometers per hour; for roads with 3 or more lanes in the same direction, the minimum speed in the leftmost lane is 110 kilometers per hour, the minimum speed in the middle lane is 90 kilometers per hour, and the minimum speed in the rightmost lane is 60 kilometers per hour. The specific details are as follows: 1. Highways: The average speed on highways is above 80 kilometers per hour, with a maximum speed of 120 kilometers per hour, which is 60% to 70% higher than that on ordinary roads. Highways must indicate the speed limits for each lane, with the maximum speed not exceeding 120 kilometers per hour and the minimum speed not being lower than 60 kilometers per hour. 2. Vehicle speed limits: On highways, the maximum speed for small passenger vehicles must not exceed 120 kilometers per hour, for other motor vehicles it must not exceed 100 kilometers per hour, and for motorcycles it must not exceed 80 kilometers per hour.

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What is the actual fuel consumption of the Malibu XL 2.0T?

According to the comprehensive fuel consumption data from the Ministry of Industry and Information Technology, the Malibu XL 2.0T has a combined fuel consumption of 6.7L/100km. However, based on actual measurements from some Malibu XL 2.0T owners, the real-world fuel consumption typically ranges from 7.5 to 11.2L/100km. Actual fuel consumption is influenced by various factors and requires comprehensive consideration from multiple aspects. Here is a method to calculate fuel consumption: Determine fuel consumption based on the relationship between distance and speed. 1. Fill the car's fuel tank until the pump automatically stops, and record the current mileage. 2. The next time you refuel, fill it until the pump automatically stops again and record the amount of fuel added. 3. Calculate the distance traveled since the last refill and determine the fuel consumption based on the relationship between distance and speed.

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How is the off-road performance of the Volvo XC90?

The off-road performance of the Volvo XC90 is at a medium level. The XC90 series is equipped with a full-time four-wheel-drive system, featuring a central differential lock. High-end models also come with air suspension. The four-wheel-drive system uses the fifth-generation Haldex system, with a multi-plate clutch structure for the central differential. Here are some details about the model: 1. The Volvo XC90 offers three power configurations—T5, T6, and T8—across eight models. The dimensions are 4953mm in length, 1958mm in width, and 1776mm in height, with a wheelbase of 2984mm. It features a newly designed luxury-style concave chrome front grille, the signature "Thor's Hammer" LED headlights, and large alloy wheels crafted with diamond-cut technology, all of which leave a strong individual imprint. 2. The new model uses black ash wood interior trim to preserve the original wood texture, along with Nappa leather perforated seats designed ergonomically. The front seats adopt a wraparound design, and all seat surfaces are covered with a soft layer.

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What does a yellow circle with an exclamation mark mean on a car?

How to Calculate the Depth of Thread Turning?

How to Repair a Manual Hydraulic Forklift That Won't Lift?

Does a car registered in June 2012 require an annual inspection in 2021?

What are the speed limits for two-lane and three-lane highways in the Subject 1 test?

What is the actual fuel consumption of the Malibu XL 2.0T?

How is the off-road performance of the Volvo XC90?

What to Do If You Forget to Renew Your Driver's License?

What is the difference between Polar White and Pearl White?

How long will the driver's license be revoked if 12 points are deducted and not handled?

What to Do When Losing Car Keys Without a Spare?