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Assertion (A): The efficiency of a pump is generally less than that of aturbine.
Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.
Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.
- a)Both A and R are individually true and R is the correct explanation of A
- b)Both A and R are individually true but R is not the correct explanation of A
- c)A is true but R is false
- d)A is false but R is true
Correct answer is option 'A'. Can you explain this answer?
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Assertion (A): The efficiency of a pump is generally less than that of...
Ans. (a) The order of efficiency in pump is 65% but in turbine efficiency is about to
90%. Assertion A is correct. Pump is against nature that so why efficiency is
low.
90%. Assertion A is correct. Pump is against nature that so why efficiency is
low.
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Assertion (A): The efficiency of a pump is generally less than that of...
Assertion (A): The efficiency of a pump is generally less than that of a turbine.
Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.
The given assertion and reason state that the efficiency of a pump is generally less than that of a turbine, and the reason for this is that the losses in pumps are more due to eddy and turbulence. Let's analyze this statement in detail.
Efficiency of a Pump:
- A pump is a device used to transfer fluids from one place to another by increasing the fluid's pressure.
- The efficiency of a pump is defined as the ratio of the useful work done by the pump to the input power supplied to the pump.
- The useful work done by the pump is the work done on the fluid to increase its pressure and overcome the resistance to flow.
- The input power supplied to the pump is the power required to drive the pump, usually in the form of mechanical energy.
Efficiency of a Turbine:
- A turbine is a device used to convert the energy of a fluid (such as steam or water) into mechanical work.
- The efficiency of a turbine is defined as the ratio of the useful work done by the turbine to the energy content of the fluid entering the turbine.
- The useful work done by the turbine is the mechanical work produced by the turbine, which can be used to drive a generator or perform other tasks.
- The energy content of the fluid entering the turbine is the energy available in the fluid in the form of pressure and velocity.
Comparison of Pump and Turbine Efficiency:
- Both pumps and turbines have losses due to various factors such as friction, leakage, and turbulence.
- However, the losses in pumps are generally higher compared to turbines due to the nature of their operation.
- Pumps work by increasing the pressure of the fluid, and this requires overcoming resistance to flow. The resistance causes losses due to friction and eddy formation.
- The eddies and turbulence in pumps result in additional energy losses, reducing the efficiency of the pump.
- On the other hand, turbines work by extracting energy from the fluid, and the losses in turbines are primarily due to friction and leakage.
- While both pumps and turbines have losses of the same kind (friction and leakage), the losses in pumps are generally more significant due to the additional losses caused by eddy and turbulence.
Conclusion:
The given assertion (A) is true, as the efficiency of a pump is generally less than that of a turbine. The reason (R) is also true, as the losses in pumps are more significant due to eddy and turbulence. Furthermore, the reason (R) correctly explains why the efficiency of a pump is generally less than that of a turbine. Therefore, both the assertion and reason are true, and the reason is the correct explanation of the assertion.
Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.
The given assertion and reason state that the efficiency of a pump is generally less than that of a turbine, and the reason for this is that the losses in pumps are more due to eddy and turbulence. Let's analyze this statement in detail.
Efficiency of a Pump:
- A pump is a device used to transfer fluids from one place to another by increasing the fluid's pressure.
- The efficiency of a pump is defined as the ratio of the useful work done by the pump to the input power supplied to the pump.
- The useful work done by the pump is the work done on the fluid to increase its pressure and overcome the resistance to flow.
- The input power supplied to the pump is the power required to drive the pump, usually in the form of mechanical energy.
Efficiency of a Turbine:
- A turbine is a device used to convert the energy of a fluid (such as steam or water) into mechanical work.
- The efficiency of a turbine is defined as the ratio of the useful work done by the turbine to the energy content of the fluid entering the turbine.
- The useful work done by the turbine is the mechanical work produced by the turbine, which can be used to drive a generator or perform other tasks.
- The energy content of the fluid entering the turbine is the energy available in the fluid in the form of pressure and velocity.
Comparison of Pump and Turbine Efficiency:
- Both pumps and turbines have losses due to various factors such as friction, leakage, and turbulence.
- However, the losses in pumps are generally higher compared to turbines due to the nature of their operation.
- Pumps work by increasing the pressure of the fluid, and this requires overcoming resistance to flow. The resistance causes losses due to friction and eddy formation.
- The eddies and turbulence in pumps result in additional energy losses, reducing the efficiency of the pump.
- On the other hand, turbines work by extracting energy from the fluid, and the losses in turbines are primarily due to friction and leakage.
- While both pumps and turbines have losses of the same kind (friction and leakage), the losses in pumps are generally more significant due to the additional losses caused by eddy and turbulence.
Conclusion:
The given assertion (A) is true, as the efficiency of a pump is generally less than that of a turbine. The reason (R) is also true, as the losses in pumps are more significant due to eddy and turbulence. Furthermore, the reason (R) correctly explains why the efficiency of a pump is generally less than that of a turbine. Therefore, both the assertion and reason are true, and the reason is the correct explanation of the assertion.
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Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?
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Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. 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 Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
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ample number of questions to practice Assertion (A): The efficiency of a pump is generally less than that of aturbine.Reason (R): Although the losses in the two types of machines are of the same kind, the losses in pumps are more due to eddy and turbulence.a)Both A and R are individually true and R is the correct explanation of Ab)Both A and R are individually true but R is not the correct explanation of Ac)A is true but R is falsed)A is false but R is trueCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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