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Consider the following statements about gas turbine:
1. The maximum temperature is limited to about 1000 to 1200 K.
2. Rotational speed of turbine blades limits the maximum temperature.
3. Blades are generally made of nickel-cobalt alloy.
4. The blade tip is hottest part.
Which of the above statements are correct?
1. The maximum temperature is limited to about 1000 to 1200 K.
2. Rotational speed of turbine blades limits the maximum temperature.
3. Blades are generally made of nickel-cobalt alloy.
4. The blade tip is hottest part.
Which of the above statements are correct?
- a)1, 2 and 3
- b)1 and 3
- c)1, 2 and 4
- d)2 and 3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Consider the following statements about gas turbine:1. The maximum tem...
(i) Metallurgical limit of turbine blade limits the maximum temperature in a gas turbine cycle.
(ii) The turbine blade has uniform temperature throughout its entire height.
(ii) The turbine blade has uniform temperature throughout its entire height.
Most Upvoted Answer
Consider the following statements about gas turbine:1. The maximum tem...
Gas Turbine:
Gas turbine is a type of internal combustion engine which uses the combustion of fuel and air to power a rotating shaft that drives the generator. It is widely used in power generation, aviation, and other industrial applications.
Correct statements:
1. The maximum temperature is limited to about 1000 to 1200 K.
2. Rotational speed of turbine blades limits the maximum temperature.
3. Blades are generally made of nickel-cobalt alloy.
Explanation:
1. The maximum temperature is limited to about 1000 to 1200 K:
The maximum temperature limit is due to the material limitations of the turbine blades. The gas temperature leaving the combustion chamber is very high, and if it exceeds the maximum temperature limit, it can cause the blade material to fail due to creep, fatigue, or oxidation. Therefore, the maximum temperature limit is set to ensure the safe and reliable operation of the gas turbine.
2. Rotational speed of turbine blades limits the maximum temperature:
The rotational speed of the turbine blades is directly related to the gas temperature at the turbine inlet. Higher rotational speeds mean higher gas temperatures, which can lead to material failure. Therefore, the maximum temperature limit is also indirectly limited by the rotational speed of the turbine blades.
3. Blades are generally made of nickel-cobalt alloy:
The turbine blades are subjected to high temperatures and stresses, and therefore, they are made of materials that can withstand these conditions. Nickel-cobalt alloys are widely used for gas turbine blades due to their high temperature strength, corrosion resistance, and good mechanical properties.
Incorrect statement:
4. The blade tip is the hottest part:
This statement is incorrect because the blade root is usually the hottest part of the blade due to the proximity to the combustion chamber. The blade tip is usually cooler than the blade root due to the cooling air that is injected into the blade to protect it from high temperatures.
Conclusion:
In conclusion, the correct statements about gas turbine are 1, 2, and 3. The maximum temperature limit is set to ensure the safe and reliable operation of the gas turbine. The rotational speed of the turbine blades indirectly limits the maximum temperature, and nickel-cobalt alloys are widely used for gas turbine blades due to their high-temperature strength, corrosion resistance, and good mechanical properties.
Gas turbine is a type of internal combustion engine which uses the combustion of fuel and air to power a rotating shaft that drives the generator. It is widely used in power generation, aviation, and other industrial applications.
Correct statements:
1. The maximum temperature is limited to about 1000 to 1200 K.
2. Rotational speed of turbine blades limits the maximum temperature.
3. Blades are generally made of nickel-cobalt alloy.
Explanation:
1. The maximum temperature is limited to about 1000 to 1200 K:
The maximum temperature limit is due to the material limitations of the turbine blades. The gas temperature leaving the combustion chamber is very high, and if it exceeds the maximum temperature limit, it can cause the blade material to fail due to creep, fatigue, or oxidation. Therefore, the maximum temperature limit is set to ensure the safe and reliable operation of the gas turbine.
2. Rotational speed of turbine blades limits the maximum temperature:
The rotational speed of the turbine blades is directly related to the gas temperature at the turbine inlet. Higher rotational speeds mean higher gas temperatures, which can lead to material failure. Therefore, the maximum temperature limit is also indirectly limited by the rotational speed of the turbine blades.
3. Blades are generally made of nickel-cobalt alloy:
The turbine blades are subjected to high temperatures and stresses, and therefore, they are made of materials that can withstand these conditions. Nickel-cobalt alloys are widely used for gas turbine blades due to their high temperature strength, corrosion resistance, and good mechanical properties.
Incorrect statement:
4. The blade tip is the hottest part:
This statement is incorrect because the blade root is usually the hottest part of the blade due to the proximity to the combustion chamber. The blade tip is usually cooler than the blade root due to the cooling air that is injected into the blade to protect it from high temperatures.
Conclusion:
In conclusion, the correct statements about gas turbine are 1, 2, and 3. The maximum temperature limit is set to ensure the safe and reliable operation of the gas turbine. The rotational speed of the turbine blades indirectly limits the maximum temperature, and nickel-cobalt alloys are widely used for gas turbine blades due to their high-temperature strength, corrosion resistance, and good mechanical properties.
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Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. 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 Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. 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 Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?.
Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. 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 Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. 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 Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. 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 about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following statements about gas turbine:1. The maximum temperature is limited to about 1000 to 1200 K.2. Rotational speed of turbine blades limits the maximum temperature.3. Blades are generally made of nickel-cobalt alloy.4. The blade tip is hottest part.Which of the above statements are correct?a)1, 2 and 3b)1 and 3c)1, 2 and 4d)2 and 3Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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