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Consider the following statements:
1. Induced draught fans require water-cooled bearings.
2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.
Q. Which of the statements given is/are correct?
1. Induced draught fans require water-cooled bearings.
2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.
Q. Which of the statements given is/are correct?
- a)1 only
- b)2 only
- c)both 1 and 2
- d)neither 1 nor 2
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider the following statements:1. Induced draught fans require wate...
Induced draught fans are bigger in size as compared to forced draught hence requires more power.
Most Upvoted Answer
Consider the following statements:1. Induced draught fans require wate...
Statement 1: Induced draught fans require water-cooled bearings.
- Induced draught fans are used in various industrial applications such as power plants, chemical plants, and refineries.
- These fans are typically installed at the outlet of a system to create negative pressure and draw out the exhausted gases or air.
- The high temperatures and corrosive gases present in the exhaust stream can pose challenges to the fan components, including the bearings.
- To overcome these challenges, induced draught fans often require water-cooled bearings.
- Water-cooled bearings help in maintaining the temperature of the bearings within acceptable limits, preventing overheating and subsequent damage.
- The cooling water circulates through the bearings, absorbing the heat and dissipating it to a cooling medium.
- This ensures that the bearings operate at a suitable temperature and prolongs their lifespan.
- Therefore, statement 1 is correct.
Statement 2: For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.
- Forced draught fans are used to supply air or gases into a system, creating positive pressure.
- In contrast, induced draught fans pull the air or gases out of the system, creating negative pressure.
- Forced draught fans are typically installed at the inlet of a system, while induced draught fans are installed at the outlet.
- Due to the difference in their operating principles, the size and power requirements of induced draught fans are generally lower than those of forced draught fans.
- Forced draught fans need to overcome the resistance offered by the system and distribute the air or gases evenly, requiring larger fan sizes and higher power.
- On the other hand, induced draught fans primarily need to create negative pressure and draw out the exhaust gases, resulting in smaller fan sizes and lower power requirements.
- Therefore, statement 2 is also correct.
Conclusion:
Based on the above analysis, both statements 1 and 2 are correct.
- Induced draught fans are used in various industrial applications such as power plants, chemical plants, and refineries.
- These fans are typically installed at the outlet of a system to create negative pressure and draw out the exhausted gases or air.
- The high temperatures and corrosive gases present in the exhaust stream can pose challenges to the fan components, including the bearings.
- To overcome these challenges, induced draught fans often require water-cooled bearings.
- Water-cooled bearings help in maintaining the temperature of the bearings within acceptable limits, preventing overheating and subsequent damage.
- The cooling water circulates through the bearings, absorbing the heat and dissipating it to a cooling medium.
- This ensures that the bearings operate at a suitable temperature and prolongs their lifespan.
- Therefore, statement 1 is correct.
Statement 2: For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.
- Forced draught fans are used to supply air or gases into a system, creating positive pressure.
- In contrast, induced draught fans pull the air or gases out of the system, creating negative pressure.
- Forced draught fans are typically installed at the inlet of a system, while induced draught fans are installed at the outlet.
- Due to the difference in their operating principles, the size and power requirements of induced draught fans are generally lower than those of forced draught fans.
- Forced draught fans need to overcome the resistance offered by the system and distribute the air or gases evenly, requiring larger fan sizes and higher power.
- On the other hand, induced draught fans primarily need to create negative pressure and draw out the exhaust gases, resulting in smaller fan sizes and lower power requirements.
- Therefore, statement 2 is also correct.
Conclusion:
Based on the above analysis, both statements 1 and 2 are correct.
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Consider the following statements:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. 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:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. 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:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
Consider the following statements:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. 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:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. 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:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct answer is option 'A'. Can you explain this answer?.
Solutions for Consider the following statements:1. Induced draught fans require water-cooled bearings.2. For an induced draught fan installation, the fan size and power requirements are less than those of a forced draught fan installation.Q.Which of the statements given is/are correct?a)1 onlyb)2 onlyc)both 1 and 2d)neither 1 nor 2Correct 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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