What does Subject 2 test?

What are the reasons for the failure of the BAIC New Energy air conditioning compressor?

Here are the reasons for the failure of the BAIC New Energy air conditioning compressor: 1. Circuit system failure: A circuit system failure can effectively prevent the car air conditioning compressor from working properly. After encountering this issue, the owner can check whether the circuit is unobstructed and inspect the temperature sensor and solenoid valve. The compressor is mainly used to compress and deliver refrigerant. If there is a problem, check for any refrigerant leaks. Without refrigerant to compress or deliver, the compressor naturally will not work. 2. Internal wear: Severe internal wear of the compressor makes it impossible to operate normally. Since the compressor plays a crucial role in the air conditioning system, its primary function is to compress and deliver refrigerant, which means the compressor is in a high-speed rotation state for long periods. This is also one of the reasons why the compressor cannot work properly. 3. Loose control line plug: A loose plug in the air conditioning compressor control line can cause poor contact, resulting in unstable voltage and current supply to the electromagnetic coil. This leads to intermittent engagement and disengagement of the air conditioning compressor's electromagnetic clutch.

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How many true or false questions are there in Subject 1?

There are a total of 40 true or false questions in Subject 1. Below is the extended content: 1. The Subject 1 exam consists of 100 questions in total, with two types of questions: multiple-choice and true or false. Each question is worth 1 point, totaling 100 points, and a passing score is 90. 2. Subject 1 refers to the theoretical driving test, conducted at the vehicle management office, which all driver's license applicants must pass. The exam content includes the most basic knowledge such as driving theory fundamentals, road safety laws and regulations, traffic signals, traffic rules, as well as local regulations. The scheduling of the theoretical driving test is arranged by the local vehicle management offices. 3. Subject 1 is part of the teaching and examination outline for motor vehicle driver training. The examination section of this outline is divided into three subjects, organized by the traffic management department of the public security authority. The examination sequence proceeds in the order of Subject 1, Subject 2, and Subject 3. After passing the previous subject, the applicant can proceed to the next subject; if the previous subject is not passed, the applicant must continue to take that subject's exam.

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Does Three-Way Catalytic Converter Cleaner Damage Cars?

Three-way catalytic converter cleaner does not damage cars, but using inferior quality cleaners can cause harm. Poor-quality cleaners may damage the fuel supply system, leading to insufficient fuel supply to the vehicle's engine and causing abnormal engine operation. Below is an extended introduction: Introduction to the Three-Way Catalytic Converter: The three-way catalytic converter is an important external purification device installed in the vehicle's exhaust system. It converts harmful gases such as CO, HC, and NOx emitted from vehicle exhaust into harmless carbon dioxide, water, and nitrogen through oxidation and reduction reactions. It features stable performance, reliable quality, and a long lifespan.

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What are the methods for removing paint from a car body?

Here is a detailed introduction to the methods for handling paint on a car body: 1. Banana oil: Dip a towel in banana oil and gently wipe the paint spots. It can be used to dilute the paint and is very effective in cleaning paint spots. However, banana oil is toxic, volatile, and somewhat corrosive, which can damage the car paint, so extra caution is required when using it. 2. Alcohol: Paint can be removed by wiping with alcohol (industrial alcohol). Use a soft cotton cloth dipped in alcohol and gently wipe the paint. 3. Tar remover/paint thinner: Tar remover can also dissolve paint. Spray it evenly on the paint spots and wait for a while to allow the paint spots to soften and dissolve.

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Is the BMW 5 Series a C-Class Car?

The BMW 5 Series is a C-Class car. Below is a relevant introduction to the BMW 5 Series: 1. Powertrain: The powertrain of the BMW 5 Series has been further enhanced. The top version, the 545i, is equipped with a V8 engine from the 7 Series, delivering a maximum power of 245 kW/333 hp (at 6100 rpm) and a maximum torque of 450 Nm (at 3600 rpm). It has a top speed of 250 km/h and can accelerate from 0 to 100 km/h in just 5.9 seconds. 2. Body Dimensions: The BMW 5 Series is the most advanced luxury sedan produced domestically to date. The exterior dimensions of the new-generation BMW 5 Series are 4841×1846×1468 (mm), with a wheelbase of 2888 mm. The new 5 Series is 66 mm longer than the previous generation model.

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What are the symptoms of a faulty car evaporator sensor?

When the evaporator temperature sensor is damaged or fails, it prevents the refrigeration system from maintaining normal temperature control. Car evaporator sensor overview: 1. Working principle of evaporator temperature sensor: After turning on the air conditioning, the evaporator continuously cools. When the temperature reaches the set value, it sends a signal to stop the compressor. If it keeps sending signals to the compressor, the compressor will work continuously. The sensor disconnects the compressor circuit when the temperature meets requirements and reconnects it when temperature rises above a certain threshold. 2. Function of evaporator sensor: It protects the air conditioning system by preventing frost formation on the evaporator surface which would reduce heat exchange efficiency. Typically, when the evaporator surface temperature reaches 2-4°C (considered frost-forming temperature), it sends feedback to the AC switch to control circuit operation. While high/low pressure switch signals are sent to the vehicle ECU for compressor control, both mechanisms serve to protect the car's air conditioning system.

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What does Subject 2 test?

What are the reasons for the failure of the BAIC New Energy air conditioning compressor?

How many true or false questions are there in Subject 1?

Does Three-Way Catalytic Converter Cleaner Damage Cars?

What are the methods for removing paint from a car body?

Is the BMW 5 Series a C-Class Car?

What are the symptoms of a faulty car evaporator sensor?

Is it generally the low beam or high beam that gets modified when upgrading headlights?

What does 'brake pads should not be repaired' mean?

How Many Liters Can Actually Be Filled in a 50-Liter Fuel Tank?

What documents are required for vehicle green book release?