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A Hartnell governor has its controlling force F given by
F = p + qr
Where, is the radius of the balls and p and q are constants.
The governor becomes isochronous when
Where, is the radius of the balls and p and q are constants.
The governor becomes isochronous when
- a)P = 0 and q is positive
- b)p is positive and q = 0
- c)p is negative and q is positive
- d)P is positive and q is also positive
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
A Hartnell governor has its controlling force F given byF = p + qrWher...
For isochronous governor F = qr
So P should be zero and q be + ve.
So P should be zero and q be + ve.
Most Upvoted Answer
A Hartnell governor has its controlling force F given byF = p + qrWher...
Explanation:
A Hartnell governor is a type of centrifugal governor that is used to control the speed of an engine or a machine. It consists of two rotating balls that are connected to the throttle valve of the engine. As the speed of the engine increases, the balls move outwards and reduce the throttle opening, thereby reducing the speed of the engine.
The controlling force of a Hartnell governor is given by the equation F = p * q * r, where r is the radius of the balls and p and q are constants.
In order for the governor to be isochronous, the speed of the engine must remain constant regardless of the load. This means that the controlling force of the governor must be zero.
Analysis of the options:
a) P = 0 and q is positive: If p = 0, then the controlling force becomes zero regardless of the value of q. This satisfies the condition for the governor to be isochronous.
b) p is positive and q = 0: If q = 0, then the controlling force becomes zero regardless of the value of p. This satisfies the condition for the governor to be isochronous.
c) p is negative and q is positive: If p is negative, then the controlling force can never be zero, regardless of the value of q. This does not satisfy the condition for the governor to be isochronous.
d) P is positive and q is also positive: If both p and q are positive, then the controlling force can never be zero, regardless of the value of r. This does not satisfy the condition for the governor to be isochronous.
Conclusion:
Based on the analysis of the options, it can be concluded that the correct answer is option 'A'. In order for the Hartnell governor to be isochronous, the value of p must be zero and q can be positive.
A Hartnell governor is a type of centrifugal governor that is used to control the speed of an engine or a machine. It consists of two rotating balls that are connected to the throttle valve of the engine. As the speed of the engine increases, the balls move outwards and reduce the throttle opening, thereby reducing the speed of the engine.
The controlling force of a Hartnell governor is given by the equation F = p * q * r, where r is the radius of the balls and p and q are constants.
In order for the governor to be isochronous, the speed of the engine must remain constant regardless of the load. This means that the controlling force of the governor must be zero.
Analysis of the options:
a) P = 0 and q is positive: If p = 0, then the controlling force becomes zero regardless of the value of q. This satisfies the condition for the governor to be isochronous.
b) p is positive and q = 0: If q = 0, then the controlling force becomes zero regardless of the value of p. This satisfies the condition for the governor to be isochronous.
c) p is negative and q is positive: If p is negative, then the controlling force can never be zero, regardless of the value of q. This does not satisfy the condition for the governor to be isochronous.
d) P is positive and q is also positive: If both p and q are positive, then the controlling force can never be zero, regardless of the value of r. This does not satisfy the condition for the governor to be isochronous.
Conclusion:
Based on the analysis of the options, it can be concluded that the correct answer is option 'A'. In order for the Hartnell governor to be isochronous, the value of p must be zero and q can be positive.
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A Hartnell governor has its controlling force F given byF = p + qrWher...
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A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. Can you explain this answer?
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A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. 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 A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. 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 A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. Can you explain this answer?.
A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. 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 A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. 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 A Hartnell governor has its controlling force F given byF = p + qrWhere, is the radius of the balls and p and q are constants.The governor becomes isochronous whena)P = 0 and q is positiveb)p is positive and q = 0c)p is negative and q is positived)P is positive and q is also positiveCorrect answer is option 'A'. Can you explain this answer?.
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