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Consider the following statements pertaining to gas turbines:
1. The degree of reaction of a reaction turbine is the ratio of energytransfer in fixed blade to the overall energy transfer across a stage.
2. The overall pressure drop in a turbine is the product of pressure dropper stage and number of stages.
3. Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle forsteam.
Which of the above statements is/are correct? 
  • a)
    1 only
  • b)
    2 only
  • c)
    2 and 3
  • d)
    3 only
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements pertaining to gas turbines:1. The de...
Gas Turbines

Statement 1: Degree of Reaction
- The degree of reaction of a reaction turbine is the ratio of energy transfer in fixed blade to the overall energy transfer across a stage.
- This statement is correct.

Statement 2: Overall Pressure Drop
- The overall pressure drop in a turbine is the product of pressure drop per stage and number of stages.
- This statement is incorrect as the overall pressure drop is the sum of pressure drops across all stages, not the product.

Statement 3: Gas Turbine Cycle Efficiency
- Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle for steam.
- This statement is correct as the Rankine cycle uses a higher working fluid density (water) and has a lower exhaust temperature, leading to higher thermal efficiency.

Conclusion
- The correct statements are 1 and 3.
- Gas turbines are widely used in power generation and propulsion systems.
- The Brayton cycle is the most common gas turbine cycle, consisting of a compressor, combustor, turbine, and heat exchanger.
- Gas turbine efficiency can be improved by using higher compressor and turbine inlet temperatures, and by utilizing combined cycle configurations.
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Consider the following statements pertaining to gas turbines:1. The degree of reaction of a reaction turbine is the ratio of energytransfer in fixed blade to the overall energy transfer across a stage.2. The overall pressure drop in a turbine is the product of pressure dropper stage and number of stages.3. Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle forsteam.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)2 and 3d)3 onlyCorrect answer is option 'D'. Can you explain this answer?
Question Description
Consider the following statements pertaining to gas turbines:1. The degree of reaction of a reaction turbine is the ratio of energytransfer in fixed blade to the overall energy transfer across a stage.2. The overall pressure drop in a turbine is the product of pressure dropper stage and number of stages.3. Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle forsteam.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)2 and 3d)3 onlyCorrect answer is option 'D'. 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 pertaining to gas turbines:1. The degree of reaction of a reaction turbine is the ratio of energytransfer in fixed blade to the overall energy transfer across a stage.2. The overall pressure drop in a turbine is the product of pressure dropper stage and number of stages.3. Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle forsteam.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)2 and 3d)3 onlyCorrect answer is option 'D'. 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 pertaining to gas turbines:1. The degree of reaction of a reaction turbine is the ratio of energytransfer in fixed blade to the overall energy transfer across a stage.2. The overall pressure drop in a turbine is the product of pressure dropper stage and number of stages.3. Gas turbine cycle (Brayton cycle) is not as efficient as Rankine cycle forsteam.Which of the above statements is/are correct?a)1 onlyb)2 onlyc)2 and 3d)3 onlyCorrect answer is option 'D'. Can you explain this answer?.
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