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The method of determination of indicated power of multi-cylinder SI engine is by the use of
- a)morse test
- b)prony brake test
- c)fanno line test
- d)heat balance test
Correct answer is option 'A'. Can you explain this answer?
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The method of determination of indicated power of multi-cylinder SI en...
Morse test is used for determining indicated power in multi-cylinder engine from which friction power is calculated.
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The method of determination of indicated power of multi-cylinder SI en...
Understanding Indicated Power in Multi-Cylinder SI Engines
Indicated Power (IP) is a crucial measure of an engine's performance, representing the power produced by combustion before any losses due to friction or other factors. For multi-cylinder Spark Ignition (SI) engines, a common method to determine IP is the Morse Test.
What is the Morse Test?
- The Morse Test involves running the engine with one or more cylinders disabled while measuring the power output.
- By comparing the power output of the full engine to that of the engine with one cylinder cut out, the indicated power can be accurately calculated.
How Does the Morse Test Work?
- Setup: The engine operates normally, and measurements of power are taken.
- Cylinder Deactivation: One cylinder is deactivated, and the engine is allowed to run. Power is again measured.
- Calculation: The difference in power output enables the calculation of the indicated power for the engine.
Advantages of the Morse Test
- Accuracy: It provides a direct measure of indicated power without needing complex instrumentation.
- Simplicity: The test can be performed with relatively simple equipment, making it accessible for many testing facilities.
- Applicability: Suitable for multi-cylinder engines, allowing for accurate assessments across various configurations.
Other Methods Explained
- Prony Brake Test: Measures brake power, not indicated power, by assessing the resistance to rotation.
- Fanno Line Test: Related to compressible flow, not directly applicable to indicated power.
- Heat Balance Test: Focuses on energy balance rather than directly measuring indicated power.
In summary, the Morse Test is the preferred method for determining the indicated power of multi-cylinder SI engines due to its accuracy, simplicity, and direct applicability.
Indicated Power (IP) is a crucial measure of an engine's performance, representing the power produced by combustion before any losses due to friction or other factors. For multi-cylinder Spark Ignition (SI) engines, a common method to determine IP is the Morse Test.
What is the Morse Test?
- The Morse Test involves running the engine with one or more cylinders disabled while measuring the power output.
- By comparing the power output of the full engine to that of the engine with one cylinder cut out, the indicated power can be accurately calculated.
How Does the Morse Test Work?
- Setup: The engine operates normally, and measurements of power are taken.
- Cylinder Deactivation: One cylinder is deactivated, and the engine is allowed to run. Power is again measured.
- Calculation: The difference in power output enables the calculation of the indicated power for the engine.
Advantages of the Morse Test
- Accuracy: It provides a direct measure of indicated power without needing complex instrumentation.
- Simplicity: The test can be performed with relatively simple equipment, making it accessible for many testing facilities.
- Applicability: Suitable for multi-cylinder engines, allowing for accurate assessments across various configurations.
Other Methods Explained
- Prony Brake Test: Measures brake power, not indicated power, by assessing the resistance to rotation.
- Fanno Line Test: Related to compressible flow, not directly applicable to indicated power.
- Heat Balance Test: Focuses on energy balance rather than directly measuring indicated power.
In summary, the Morse Test is the preferred method for determining the indicated power of multi-cylinder SI engines due to its accuracy, simplicity, and direct applicability.
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The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer?.
The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2025 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The method of determination of indicated power of multi-cylinder SI engine is by the use ofa)morse testb)prony brake testc)fanno line testd)heat balance testCorrect answer is option 'A'. Can you explain this answer?.
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