He write exhaust gas released form engine is indicated?
I'm sorry, but I'm not sure I understand your question. Are you asking how the exhaust gas released from an engine is indicated or measured?
The exhaust gas released from an engine can be indicated by various means. Here are the steps to determine the indication of exhaust gas:
1. Visual Inspection: Start by visually inspecting the exhaust pipe of the engine. If you see a continuous stream of gas coming out, it usually indicates that the engine is running and producing exhaust gases.
2. Smell: If the engine is operating, you can try to smell the exhaust gas. Different fuels and engine conditions produce distinct odors. For example, gasoline engines often have a strong odor of unburned fuel, while diesel engines typically have a heavier smell of burnt diesel.
3. Color: Observe the color of the exhaust gas. It can provide insights into the engine's condition. Here are some common exhaust colors and their indications:
- Clear/Transparent: Typically indicates a properly functioning engine.
- White/Gray: Could indicate coolant or water vapor entering the combustion chamber, possibly due to a blown head gasket or other cooling system issues.
- Black: Often indicates a rich fuel mixture, suggesting an issue with the fuel system, such as a clogged air filter, faulty fuel injectors, or a malfunctioning carburetor.
- Blue: May indicate oil burning, which could be a sign of worn piston rings, valve seals, or other internal engine problems.
- Yellow/Brown: Could indicate the presence of engine oil, indicating potential oil leaks.
4. Exhaust Gas Analyzer: For a more accurate measurement of the exhaust gases released, an exhaust gas analyzer can be used. This device analyzes the composition of the exhaust gases, measuring levels of carbon dioxide (CO2), carbon monoxide (CO), oxygen (O2), nitrogen oxides (NOx), and hydrocarbons (HC). These measurements provide useful information about the engine's combustion efficiency and emissions.
Note: It's important to exercise caution when inspecting exhaust gases, as they can be toxic and harmful. Always ensure the engine is properly ventilated and follow safety protocols when conducting such inspections. If you suspect any issues with your vehicle's exhaust gas, it's recommended to consult a qualified mechanic or automotive technician for proper diagnosis and repairs.