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Consider the following statements regarding a Cl engine:
1. Cl engine known can be reduced by increasing compression ratio.
2. Thermal efficiency of Cl is lower relative to a SI engine.
3. Cl engine has a higher specific output relative to SI engine.
4. Cl engines use leaner mixture relative to SI engine.
Q. Which of the above statements are correct?
1. Cl engine known can be reduced by increasing compression ratio.
2. Thermal efficiency of Cl is lower relative to a SI engine.
3. Cl engine has a higher specific output relative to SI engine.
4. Cl engines use leaner mixture relative to SI engine.
Q. Which of the above statements are correct?
- a)1 and 3
- b)2 and 4
- c)1 and 4
- d)1, 2, 3 and 4
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regarding a Cl engine:1. Cl engine k...
Cl Engine Characteristics
Compression-Ignition (Cl) engines are also known as diesel engines. These engines operate on the principle of compression ignition, where the air is compressed to a high temperature, and fuel is injected into the cylinder, which ignites due to the high temperature. The Cl engine has the following characteristics:
1. Cl engine known can be reduced by increasing compression ratio.
The Cl engine has a higher compression ratio than a Spark-Ignition (SI) engine. The higher compression ratio in the Cl engine leads to a higher temperature and pressure in the cylinder, which results in better combustion. The Cl engine's compression ratio can be further increased to reduce its Cl, leading to better fuel economy and lower emissions.
2. Thermal efficiency of Cl is lower relative to a SI engine.
The thermal efficiency of an engine is the ratio of the work output to the heat input. The Cl engine's thermal efficiency is lower than that of an SI engine due to the following reasons:
- The Cl engine operates at a higher compression ratio, which leads to higher heat losses to the cylinder walls and exhaust.
- The Cl engine has a higher fuel consumption rate than an SI engine due to the leaner mixture used in the Cl engine.
3. Cl engine has a higher specific output relative to SI engine.
The specific output of an engine is the power output per unit displacement. The Cl engine has a higher specific output than an SI engine due to the following reasons:
- The Cl engine has a higher compression ratio than an SI engine, which leads to better combustion and higher power output.
- The Cl engine has a higher fuel consumption rate than an SI engine due to the leaner mixture used in the Cl engine.
4. Cl engines use leaner mixture relative to SI engine.
The Cl engine uses a leaner mixture than an SI engine. The leaner mixture in the Cl engine leads to better fuel economy and lower emissions. The leaner mixture in the Cl engine also leads to lower power output than an SI engine.
Conclusion
From the above discussion, we can conclude that statements 1 and 4 are correct. The Cl engine's compression ratio can be increased to reduce its Cl, and it uses a leaner mixture than an SI engine. However, statement 2 is incorrect as the Cl engine's thermal efficiency is lower than that of an SI engine. Statement 3 is correct as the Cl engine has a higher specific output than an SI engine.
Compression-Ignition (Cl) engines are also known as diesel engines. These engines operate on the principle of compression ignition, where the air is compressed to a high temperature, and fuel is injected into the cylinder, which ignites due to the high temperature. The Cl engine has the following characteristics:
1. Cl engine known can be reduced by increasing compression ratio.
The Cl engine has a higher compression ratio than a Spark-Ignition (SI) engine. The higher compression ratio in the Cl engine leads to a higher temperature and pressure in the cylinder, which results in better combustion. The Cl engine's compression ratio can be further increased to reduce its Cl, leading to better fuel economy and lower emissions.
2. Thermal efficiency of Cl is lower relative to a SI engine.
The thermal efficiency of an engine is the ratio of the work output to the heat input. The Cl engine's thermal efficiency is lower than that of an SI engine due to the following reasons:
- The Cl engine operates at a higher compression ratio, which leads to higher heat losses to the cylinder walls and exhaust.
- The Cl engine has a higher fuel consumption rate than an SI engine due to the leaner mixture used in the Cl engine.
3. Cl engine has a higher specific output relative to SI engine.
The specific output of an engine is the power output per unit displacement. The Cl engine has a higher specific output than an SI engine due to the following reasons:
- The Cl engine has a higher compression ratio than an SI engine, which leads to better combustion and higher power output.
- The Cl engine has a higher fuel consumption rate than an SI engine due to the leaner mixture used in the Cl engine.
4. Cl engines use leaner mixture relative to SI engine.
The Cl engine uses a leaner mixture than an SI engine. The leaner mixture in the Cl engine leads to better fuel economy and lower emissions. The leaner mixture in the Cl engine also leads to lower power output than an SI engine.
Conclusion
From the above discussion, we can conclude that statements 1 and 4 are correct. The Cl engine's compression ratio can be increased to reduce its Cl, and it uses a leaner mixture than an SI engine. However, statement 2 is incorrect as the Cl engine's thermal efficiency is lower than that of an SI engine. Statement 3 is correct as the Cl engine has a higher specific output than an SI engine.
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Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer?
Question Description
Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct 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 Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct 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 Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer?.
Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct 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 Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct 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 Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer?.
Solutions for Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Consider the following statements regarding a Cl engine:1. Cl engine known can be reduced by increasing compression ratio.2. Thermal efficiency of Cl is lower relative to a SI engine.3. Cl engine has a higher specific output relative to SI engine.4. Cl engines use leaner mixture relative to SI engine.Q.Which of the above statements are correct?a)1 and 3b)2 and 4c)1 and 4d)1, 2, 3 and 4Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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