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Select the wrong statement;
  • a)
    The coefficient of fluctuation of speed remains same with any change in the mean speed of the prime mover.
  • b)
    The maximum fluctuation of energy of a flywheel is directly proportional to coefficient of fluctuation of speed.
  • c)
    For the same fluctuation of energy, the size of the flywheel is reduced at higher mean speed of rotation.
  • d)
    For the same mass of flywheel, the rim type and disc type flywheels are equally preferable
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Select the wrong statement;a)The coefficient of fluctuation of speed r...
For the same mass of flywheel, the rim type is preferable over disk type flywheels.
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Most Upvoted Answer
Select the wrong statement;a)The coefficient of fluctuation of speed r...
Explanation:

The wrong statement in this case is option 'D' which states that for the same mass of flywheel, the rim type and disc type flywheels are equally preferable. This statement is incorrect.

Reason:

The selection of flywheel type depends on various factors such as the application, space availability, cost, and specific requirements. The rim type and disc type flywheels have different characteristics and advantages.

Rim Type Flywheel:
- Rim type flywheels have a large diameter and a relatively small thickness.
- They are designed with most of the mass concentrated at the periphery or rim of the flywheel.
- The rim type flywheels provide high energy storage capacity due to their larger diameter.
- They are suitable for applications where the speed fluctuation is relatively low and a large amount of energy storage is required.
- Rim type flywheels are commonly used in reciprocating engines, gas turbines, and other applications where the speed variation is small.

Disc Type Flywheel:
- Disc type flywheels have a smaller diameter and a larger thickness compared to rim type flywheels.
- They are designed with most of the mass distributed in the form of discs, stacked together to form the flywheel.
- The disc type flywheels provide lower energy storage capacity compared to rim type flywheels due to their smaller diameter.
- They are suitable for applications where the speed fluctuation is relatively high and compact size is required.
- Disc type flywheels are commonly used in automobiles, motorcycles, and other applications where space is limited and high-speed fluctuations occur.

Conclusion:

The selection of flywheel type depends on the specific requirements of the application. For the same mass of flywheel, the rim type and disc type flywheels are not equally preferable as they have different characteristics and advantages. The choice between the two types of flywheels should be based on the desired energy storage capacity, speed fluctuation, available space, and other factors specific to the application.
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Select the wrong statement;a)The coefficient of fluctuation of speed remains same with any change in the mean speed of the prime mover.b)The maximum fluctuation of energy of a flywheel is directly proportional to coefficient of fluctuation of speed.c)For the same fluctuation of energy, the size of the flywheel is reduced at higher mean speed of rotation.d)For the same mass of flywheel, the rim type and disc type flywheels are equally preferableCorrect answer is option 'D'. Can you explain this answer?
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Select the wrong statement;a)The coefficient of fluctuation of speed remains same with any change in the mean speed of the prime mover.b)The maximum fluctuation of energy of a flywheel is directly proportional to coefficient of fluctuation of speed.c)For the same fluctuation of energy, the size of the flywheel is reduced at higher mean speed of rotation.d)For the same mass of flywheel, the rim type and disc type flywheels are equally preferableCorrect 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 Select the wrong statement;a)The coefficient of fluctuation of speed remains same with any change in the mean speed of the prime mover.b)The maximum fluctuation of energy of a flywheel is directly proportional to coefficient of fluctuation of speed.c)For the same fluctuation of energy, the size of the flywheel is reduced at higher mean speed of rotation.d)For the same mass of flywheel, the rim type and disc type flywheels are equally preferableCorrect 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 Select the wrong statement;a)The coefficient of fluctuation of speed remains same with any change in the mean speed of the prime mover.b)The maximum fluctuation of energy of a flywheel is directly proportional to coefficient of fluctuation of speed.c)For the same fluctuation of energy, the size of the flywheel is reduced at higher mean speed of rotation.d)For the same mass of flywheel, the rim type and disc type flywheels are equally preferableCorrect answer is option 'D'. Can you explain this answer?.
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