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The tendency of knocking in C I engine reduces by
- a)High self - ignition temperature of fuel
- b)Decrease in jacket water temperature
- c)Injection of fuel just before TDC
- d)Decrease in injection pressure
Correct answer is option 'C'. Can you explain this answer?
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The tendency of knocking in C I engine reduces bya)High self - ignitio...
Ans. (c)
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The tendency of knocking in C I engine reduces bya)High self - ignitio...
Explanation:
Knocking is a phenomenon in the internal combustion engine where the fuel mixture in the combustion chamber ignites prematurely and causes a sharp sound. It is caused by the auto-ignition of the fuel due to high pressure and temperature in the combustion chamber.
Injection of fuel just before TDC:
When the fuel is injected just before the top dead center (TDC), the combustion process starts at the spark plug and propagates towards the piston. This causes a controlled burning of the fuel mixture, reducing the tendency of knocking.
Other factors:
High self-ignition temperature of fuel and a decrease in jacket water temperature can also reduce the tendency of knocking. However, injection of fuel just before TDC is the most effective method for reducing knocking in the internal combustion engine.
Decrease in injection pressure:
Decreasing the injection pressure can actually increase the tendency of knocking in the engine. This is because a lower injection pressure leads to poor atomization of the fuel, causing uneven burning and hot spots in the combustion chamber.
Conclusion:
In conclusion, the most effective method for reducing knocking in the internal combustion engine is by injecting the fuel just before TDC. Other factors such as high self-ignition temperature of fuel and decrease in jacket water temperature can also help to reduce knocking. However, decreasing injection pressure can actually increase the tendency of knocking in the engine.
Knocking is a phenomenon in the internal combustion engine where the fuel mixture in the combustion chamber ignites prematurely and causes a sharp sound. It is caused by the auto-ignition of the fuel due to high pressure and temperature in the combustion chamber.
Injection of fuel just before TDC:
When the fuel is injected just before the top dead center (TDC), the combustion process starts at the spark plug and propagates towards the piston. This causes a controlled burning of the fuel mixture, reducing the tendency of knocking.
Other factors:
High self-ignition temperature of fuel and a decrease in jacket water temperature can also reduce the tendency of knocking. However, injection of fuel just before TDC is the most effective method for reducing knocking in the internal combustion engine.
Decrease in injection pressure:
Decreasing the injection pressure can actually increase the tendency of knocking in the engine. This is because a lower injection pressure leads to poor atomization of the fuel, causing uneven burning and hot spots in the combustion chamber.
Conclusion:
In conclusion, the most effective method for reducing knocking in the internal combustion engine is by injecting the fuel just before TDC. Other factors such as high self-ignition temperature of fuel and decrease in jacket water temperature can also help to reduce knocking. However, decreasing injection pressure can actually increase the tendency of knocking in the engine.
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The tendency of knocking in C I engine reduces bya)High self - ignition temperature of fuelb)Decrease in jacket water temperaturec)Injection of fuel just before TDCd)Decrease in injection pressureCorrect answer is option 'C'. Can you explain this answer?
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The tendency of knocking in C I engine reduces bya)High self - ignition temperature of fuelb)Decrease in jacket water temperaturec)Injection of fuel just before TDCd)Decrease in injection pressureCorrect answer is option 'C'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about The tendency of knocking in C I engine reduces bya)High self - ignition temperature of fuelb)Decrease in jacket water temperaturec)Injection of fuel just before TDCd)Decrease in injection pressureCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The tendency of knocking in C I engine reduces bya)High self - ignition temperature of fuelb)Decrease in jacket water temperaturec)Injection of fuel just before TDCd)Decrease in injection pressureCorrect answer is option 'C'. Can you explain this answer?.
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