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Which one of the following statements with regard to belt drives is NOT correct?
- a)Increase in the angle of wrap of the belt enables more power transmission
- b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension
- c)Wide and thin belt is preferable for better life than a thick and narrow one
- d)Crown is provided on the pulley to make the belt run centrally on the pulley
Correct answer is option 'B'. Can you explain this answer?
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Which one of the following statements with regard to belt drives is NO...
Explanation:
The correct answer is option 'B' - Maximum power is transmitted when the centrifugal tension is three times the tight side tension.
Belt Drives:
Belt drives are used to transmit power from one shaft to another by means of a flexible element such as a belt. They are widely used in various applications as they are simple, cost-effective, and efficient.
Angle of Wrap:
The angle of wrap is the angle subtended by the belt as it wraps around the pulley. Increasing the angle of wrap increases the friction between the belt and the pulley, resulting in more power transmission. This statement is correct.
Centrifugal Tension:
Centrifugal tension is the tension in the belt that is caused by the centrifugal force acting on the belt due to its rotation. It is directly proportional to the speed of the belt. However, the maximum power transmission occurs when the centrifugal tension is equal to the tight side tension, not three times the tight side tension. Therefore, this statement is incorrect.
Belt Width and Thickness:
The width and thickness of the belt have an impact on its life and performance. A wide and thin belt is preferable for better life than a thick and narrow one. A wide belt distributes the load over a larger area, reducing the stress on the belt and increasing its life. Additionally, a thin belt is more flexible and can wrap around smaller pulleys, allowing for a more compact design. Therefore, this statement is correct.
Crowning of Pulleys:
Crowning is the process of shaping the pulley's surface to have a slight curve. This curve helps the belt to run centrally on the pulley, preventing it from slipping off. The crowning of pulleys is necessary to ensure proper alignment and efficient power transmission. Therefore, this statement is correct.
In conclusion, option 'B' is the correct answer as the maximum power transmission occurs when the centrifugal tension is equal to the tight side tension, not three times the tight side tension.
The correct answer is option 'B' - Maximum power is transmitted when the centrifugal tension is three times the tight side tension.
Belt Drives:
Belt drives are used to transmit power from one shaft to another by means of a flexible element such as a belt. They are widely used in various applications as they are simple, cost-effective, and efficient.
Angle of Wrap:
The angle of wrap is the angle subtended by the belt as it wraps around the pulley. Increasing the angle of wrap increases the friction between the belt and the pulley, resulting in more power transmission. This statement is correct.
Centrifugal Tension:
Centrifugal tension is the tension in the belt that is caused by the centrifugal force acting on the belt due to its rotation. It is directly proportional to the speed of the belt. However, the maximum power transmission occurs when the centrifugal tension is equal to the tight side tension, not three times the tight side tension. Therefore, this statement is incorrect.
Belt Width and Thickness:
The width and thickness of the belt have an impact on its life and performance. A wide and thin belt is preferable for better life than a thick and narrow one. A wide belt distributes the load over a larger area, reducing the stress on the belt and increasing its life. Additionally, a thin belt is more flexible and can wrap around smaller pulleys, allowing for a more compact design. Therefore, this statement is correct.
Crowning of Pulleys:
Crowning is the process of shaping the pulley's surface to have a slight curve. This curve helps the belt to run centrally on the pulley, preventing it from slipping off. The crowning of pulleys is necessary to ensure proper alignment and efficient power transmission. Therefore, this statement is correct.
In conclusion, option 'B' is the correct answer as the maximum power transmission occurs when the centrifugal tension is equal to the tight side tension, not three times the tight side tension.
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Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. Can you explain this answer?
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Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. 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 Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. 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 Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. Can you explain this answer?.
Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. 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 Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. 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 Which one of the following statements with regard to belt drives is NOT correct?a)Increase in the angle of wrap of the belt enables more power transmission b)Maximum power is transmitted when the centrifugal tension is three times the tight side tension c)Wide and thin belt is preferable for better life than a thick and narrow one d)Crown is provided on the pulley to make the belt run centrally on the pulleyCorrect answer is option 'B'. Can you explain this answer?.
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