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Consider the following statements:
1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines
2. Gas turbine plants are heavier and larger in size than steam turbineplants
3. Gas turbines require 'cooling water for its operations
4. Almost any kind of fuel can be used with gas turbines
Which of the statements given above are correct?
- a)1 and 2
- b)1 and 3
- c)1 and 4
- d)3 and 4
Correct answer is option 'C'. Can you explain this answer?
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Consider the following statements:1. The speed of rotation of the movi...
Statement 1: The speed of rotation of the moving elements of gas turbines is much higher than those of steam turbines.
Gas turbines typically operate at much higher speeds compared to steam turbines. This is because gas turbines have a higher power-to-weight ratio and are designed to rotate at higher speeds to achieve greater efficiency. The moving elements of gas turbines, such as the compressor and turbine blades, are designed to withstand high rotational speeds. In contrast, steam turbines operate at lower speeds due to the limitations imposed by the steam cycle and the need for larger components to handle the mass flow of steam.
Statement 2: Gas turbine plants are heavier and larger in size than steam turbine plants.
This statement is incorrect. Gas turbine plants are generally lighter and smaller in size compared to steam turbine plants. Gas turbines have a compact design, with the combustion chamber, compressor, and turbine all housed in a single casing. This compact design allows gas turbines to have a smaller footprint and lower weight compared to steam turbines, which typically have separate casings for the turbine and generator. Additionally, gas turbine plants do not require a boiler or condenser, which further reduces their size and weight.
Statement 3: Gas turbines require cooling water for its operations.
This statement is incorrect. Gas turbines do not require cooling water for their operations. Gas turbines are air-cooled, meaning they use ambient air to remove heat from the hot gas stream. The compressor and turbine sections of the gas turbine are designed with internal cooling passages that circulate air to cool the components. This eliminates the need for external cooling water and simplifies the design and operation of gas turbine plants. In some cases, gas turbines can also utilize waste heat from the exhaust gases to produce steam, which can be used for various purposes including district heating or power generation in a steam turbine.
Statement 4: Almost any kind of fuel can be used with gas turbines.
This statement is correct. Gas turbines are known for their fuel flexibility. They can burn a wide range of fuels including natural gas, diesel, kerosene, biofuels, and even hydrogen. This versatility makes gas turbines suitable for various applications and allows them to adapt to changing fuel availability and price. Gas turbines can also operate with different fuel compositions and qualities, making them a preferred choice for power generation in different regions and industries. The ability to use multiple fuels also provides operational flexibility and can help optimize the cost and efficiency of gas turbine plants.
Gas turbines typically operate at much higher speeds compared to steam turbines. This is because gas turbines have a higher power-to-weight ratio and are designed to rotate at higher speeds to achieve greater efficiency. The moving elements of gas turbines, such as the compressor and turbine blades, are designed to withstand high rotational speeds. In contrast, steam turbines operate at lower speeds due to the limitations imposed by the steam cycle and the need for larger components to handle the mass flow of steam.
Statement 2: Gas turbine plants are heavier and larger in size than steam turbine plants.
This statement is incorrect. Gas turbine plants are generally lighter and smaller in size compared to steam turbine plants. Gas turbines have a compact design, with the combustion chamber, compressor, and turbine all housed in a single casing. This compact design allows gas turbines to have a smaller footprint and lower weight compared to steam turbines, which typically have separate casings for the turbine and generator. Additionally, gas turbine plants do not require a boiler or condenser, which further reduces their size and weight.
Statement 3: Gas turbines require cooling water for its operations.
This statement is incorrect. Gas turbines do not require cooling water for their operations. Gas turbines are air-cooled, meaning they use ambient air to remove heat from the hot gas stream. The compressor and turbine sections of the gas turbine are designed with internal cooling passages that circulate air to cool the components. This eliminates the need for external cooling water and simplifies the design and operation of gas turbine plants. In some cases, gas turbines can also utilize waste heat from the exhaust gases to produce steam, which can be used for various purposes including district heating or power generation in a steam turbine.
Statement 4: Almost any kind of fuel can be used with gas turbines.
This statement is correct. Gas turbines are known for their fuel flexibility. They can burn a wide range of fuels including natural gas, diesel, kerosene, biofuels, and even hydrogen. This versatility makes gas turbines suitable for various applications and allows them to adapt to changing fuel availability and price. Gas turbines can also operate with different fuel compositions and qualities, making them a preferred choice for power generation in different regions and industries. The ability to use multiple fuels also provides operational flexibility and can help optimize the cost and efficiency of gas turbine plants.
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Consider the following statements:1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines2. Gas turbine plants are heavier and larger in size than steam turbineplants3. Gas turbines require cooling water for its operations4. Almost any kind of fuel can be used with gas turbinesWhich of the statements given above are correct?a)1 and 2b)1 and 3c)1 and 4d)3 and 4Correct answer is option 'C'. Can you explain this answer?
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Consider the following statements:1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines2. Gas turbine plants are heavier and larger in size than steam turbineplants3. Gas turbines require cooling water for its operations4. Almost any kind of fuel can be used with gas turbinesWhich of the statements given above are correct?a)1 and 2b)1 and 3c)1 and 4d)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:1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines2. Gas turbine plants are heavier and larger in size than steam turbineplants3. Gas turbines require cooling water for its operations4. Almost any kind of fuel can be used with gas turbinesWhich of the statements given above are correct?a)1 and 2b)1 and 3c)1 and 4d)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:1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines2. Gas turbine plants are heavier and larger in size than steam turbineplants3. Gas turbines require cooling water for its operations4. Almost any kind of fuel can be used with gas turbinesWhich of the statements given above are correct?a)1 and 2b)1 and 3c)1 and 4d)3 and 4Correct answer is option 'C'. Can you explain this answer?.
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ample number of questions to practice Consider the following statements:1. The speed of rotation of the moving elements of gas turbines is muchhigher than those of steam turbines2. Gas turbine plants are heavier and larger in size than steam turbineplants3. Gas turbines require cooling water for its operations4. Almost any kind of fuel can be used with gas turbinesWhich of the statements given above are correct?a)1 and 2b)1 and 3c)1 and 4d)3 and 4Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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