Mechanical Engineering Exam > Mechanical Engineering Questions > Which of the following statement is wrong?a)L...
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Which of the following statement is wrong?
- a)Locomotive boiler is a water tube boiler
- b)Water tube boilers are internally fired
- c)Lamont boiler is a low pressure water tube boiler
- d)All of the above
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following statement is wrong?a)Locomotive boiler is a wat...
- Fire tube boiler: Hot flue gases are inside the tubes and the water surrounds the tubes. Example: Cochran, Lancashire and Locomotive boilers
- Water tube boiler: The water is inside the tubes and hot gases surround them. Example: Babcock and Wilcox boiler, Stirling boiler
- Externally fired boilers: Fire is outside the shell. Example: Babcock and Wilcox boiler, Stirling boiler (water tube boilers)
- Internally fired boilers: Furnace is located inside the boiler shell. Example: Cochran, Lancashire boiler
- High pressure boilers: It produce steam at a pressure of 80 bar and above. Example: Babcock and Wilcox boiler, Velox, Lamont, Benson Boilers
- Low pressure boilers: It produce steam at a pressure below 80 bar are called low pressure boilers. Example: Cochran, Cornish, Lancashire and Locomotive boilers
Most Upvoted Answer
Which of the following statement is wrong?a)Locomotive boiler is a wat...
Explanation:
The correct answer is option D, which states that all of the above statements are wrong. Let's analyze each statement to understand why it is incorrect.
a) Locomotive boiler is a water tube boiler:
This statement is correct. A locomotive boiler is indeed a water tube boiler. It is a type of boiler commonly used in locomotives to generate steam for propulsion. Water circulates through the tubes, and hot gases from the firebox surround the tubes to heat the water.
b) Water tube boilers are internally fired:
This statement is incorrect. Water tube boilers are externally fired, not internally fired. In a water tube boiler, the hot gases and combustion products flow on the outside of the tubes, while water circulates inside the tubes. This design allows for higher heat transfer rates and a larger heating surface area.
c) Lamont boiler is a low-pressure water tube boiler:
This statement is also incorrect. The Lamont boiler is a high-pressure water tube boiler, not a low-pressure one. It was developed by Walter Douglas Lamont in the early 20th century and is known for its high-pressure and high-temperature capabilities. It is commonly used in power plants and industrial applications.
Conclusion:
Based on the analysis, we can conclude that option D is the correct answer as it states that all of the above statements are wrong. The locomotive boiler is a water tube boiler, water tube boilers are externally fired, and the Lamont boiler is a high-pressure water tube boiler.
The correct answer is option D, which states that all of the above statements are wrong. Let's analyze each statement to understand why it is incorrect.
a) Locomotive boiler is a water tube boiler:
This statement is correct. A locomotive boiler is indeed a water tube boiler. It is a type of boiler commonly used in locomotives to generate steam for propulsion. Water circulates through the tubes, and hot gases from the firebox surround the tubes to heat the water.
b) Water tube boilers are internally fired:
This statement is incorrect. Water tube boilers are externally fired, not internally fired. In a water tube boiler, the hot gases and combustion products flow on the outside of the tubes, while water circulates inside the tubes. This design allows for higher heat transfer rates and a larger heating surface area.
c) Lamont boiler is a low-pressure water tube boiler:
This statement is also incorrect. The Lamont boiler is a high-pressure water tube boiler, not a low-pressure one. It was developed by Walter Douglas Lamont in the early 20th century and is known for its high-pressure and high-temperature capabilities. It is commonly used in power plants and industrial applications.
Conclusion:
Based on the analysis, we can conclude that option D is the correct answer as it states that all of the above statements are wrong. The locomotive boiler is a water tube boiler, water tube boilers are externally fired, and the Lamont boiler is a high-pressure water tube boiler.
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Which of the following statement is wrong?a)Locomotive boiler is a water tube boilerb)Water tube boilers are internally firedc)Lamont boiler is a low pressure water tube boilerd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?
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