Should the throttle be held steady or completely released when upshifting?

Will a car be penalized with demerit points for speeding less than 10%?

A car speeding less than 10% will not incur demerit points. Below is the relevant information on speeding penalties: 1. For speed limits below 50 km/h: Speeding between 10% and less than 20% results in a fine of 50 RMB. Speeding more than 20% but less than 50% over the limit incurs a fine of 100 RMB. Speeding more than 50% but less than 70% over the limit results in a fine of 300 RMB. Speeding more than 70% over the limit incurs a fine of 500 RMB. 2. For speed limits between 50 km/h and 80 km/h: Speeding between 10% and less than 20% results in a fine of 100 RMB. Speeding more than 20% but less than 50% over the limit incurs a fine of 150 RMB. Speeding more than 50% but less than 70% over the limit results in a fine of 500 RMB. Speeding more than 70% over the limit incurs a fine of 1000 RMB.

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What to Do If You Fail the Subject 4 Test 5 Times?

If you fail the Subject 4 test 5 times, you can reschedule the exam after 10 days. Here are the relevant details: 1. Retake Regulations: There is no limit to the number of retakes for Subject 4. As long as your driving learning permit is valid, you can schedule the exam an unlimited number of times. Additionally, no matter how many times you fail Subject 4, it will not affect the scores of the subjects you have already passed. Therefore, even if you fail 5 times, you do not need to retake the previous subjects. 2. Passing Strategies: While scheduling the retake, reflect on the reasons for your failure and address the issues you encountered. For example, note the questions you frequently get wrong or the nervousness you feel during the exam. Moreover, make use of the waiting period to practice more questions and prepare thoroughly.

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What to Do When Your Parked Car Gets Scratched?

If your parked car gets scratched, follow these steps: 1. Surveillance Footage: Check the surveillance footage to identify the responsible party. 2. Insurance Claim: Scratch insurance is an additional coverage that can only be purchased if you already have comprehensive car insurance. The coverage applies to 'malicious acts by others causing artificial scratches on the insured vehicle's body.' However, damages caused intentionally by the policyholder, their family members, or the driver and their family members are excluded. Scratch insurance covers only paint surface scratches. If there are obvious collision marks, it falls under the comprehensive car insurance claim. If the car has isolated scratches without any signs of collision or scraping, scratch insurance will cover it. However, scratches caused by collisions or scrapes during driving are not covered by scratch insurance.

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What Causes the Gurgling Sound in the Radiator After the Engine Shuts Off?

The gurgling sound in the radiator after the engine shuts off is caused by some coolant flowing back into the expansion tank. Since the coolant temperature remains high after shutdown, the radiator makes a gurgling noise, which is a normal phenomenon. Below is relevant information about engine coolant: 1. Circulation Path: Coolant follows two circulation paths within the engine—one is the major cycle, and the other is the minor cycle. When the engine is first started, the coolant undergoes the minor cycle, bypassing the radiator for heat dissipation, which helps the engine warm up quickly. Once the engine reaches normal operating temperature, the coolant switches to the major cycle, passing through the radiator to dissipate heat and maintain the engine within an optimal temperature range. 2. Replacement: Coolant requires regular replacement. Prolonged use without replacement can lead to a decreased boiling point and increased freezing point, adversely affecting engine performance. During each coolant change, ensure the old coolant is completely drained from the cooling system before adding new coolant. When purchasing coolant, always opt for genuine products from reputable brands and ensure they are sourced through official channels.

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What is an Automotive Air Conditioning Pressure Gauge?

Generally, automotive air conditioning pressure gauges are divided into high-pressure gauges and low-pressure gauges, with the red one being the high-pressure gauge and the blue one being the low-pressure gauge. Below is relevant information about automotive air conditioning pressure gauges: 1. The pressure values of automotive air conditioning are generally influenced by factors such as the surrounding environment, engine speed, and condenser cooling conditions, and there is no fixed standard. Taking an outdoor temperature of around 20 degrees Celsius as an example, during automotive air conditioning operation, a high-pressure value of 1.3-2.0 MPa and a low-pressure value of 0.12-0.25 MPa are considered normal; 2. If the engine speed is maintained at 1500-2000 r/min, then during automotive air conditioning operation, a high-pressure value of 1300-1600 kPa and a low-pressure value of 150-250 kPa are considered normal; 3. If the test results show low low-pressure and low high-pressure, it may be due to insufficient refrigerant in the air conditioning system; high low-pressure and high high-pressure may indicate an expansion valve fault; high low-pressure and low high-pressure may indicate a compressor fault.

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What Causes Low High Pressure and High Low Pressure in Car Air Conditioning?

When the pressure gauge shows low high pressure and high low pressure in a car's air conditioning system with sufficient refrigerant in the pipelines but poor cooling performance, it usually indicates a compressor malfunction due to internal leakage. Replacing the compressor typically resolves this issue. Introduction to Car Air Conditioning: Car air conditioning systems mainly consist of the compressor, electromagnetic clutch, condenser, evaporator, expansion valve, receiver-drier, hoses, condenser fan, vacuum solenoid, idle speed controller, and control system. The system has high-pressure and low-pressure circuits. The high-pressure side includes the compressor output, high-pressure pipelines, condenser, receiver-drier, and liquid lines. The low-pressure side comprises the evaporator, accumulator, suction lines, compressor input, and compressor oil sump. Car Air Conditioning Refrigeration System: The refrigeration system consists of the compressor, condenser, receiver-drier, expansion valve, evaporator, and blower. These components are connected via copper (or aluminum) pipes and high-pressure rubber hoses to form a sealed system. During operation, refrigerant circulates through this closed system in different states, undergoing four basic processes: compression, heat dissipation, throttling, and heat absorption. These cycles continuously repeat to lower the air temperature around the evaporator.

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Should the throttle be held steady or completely released when upshifting?

Will a car be penalized with demerit points for speeding less than 10%?

What to Do If You Fail the Subject 4 Test 5 Times?

What to Do When Your Parked Car Gets Scratched?

What Causes the Gurgling Sound in the Radiator After the Engine Shuts Off?

What is an Automotive Air Conditioning Pressure Gauge?

What Causes Low High Pressure and High Low Pressure in Car Air Conditioning?

Why does the car not cool when idling but works fine while driving?

Are Highway Ramp Cameras for Speed Detection?

What Are the Reasons Why the Engine Won't Start?

What Causes Brake Pulsation and Vibration?