A Hartnell governor is a

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A Hartnell governor is a

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For a Hartnell governor which of the following relation regarding r₁/r₂ is true for isochronisms?

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A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation and a and b are constants. The governor becomes isochronous when

asked Sep 22, 2022 in Machine Dynamics by Grayson (34.3k points)

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In a Hartnell governor, the stiffness of the spring is given by

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In a Hartnell governor, the lift of the sleeve is given by

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In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be

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In a Hartnell governor, the compression of the spring is ______________ the lift of the sleeve.

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For isochronous Hartnell governor

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Controlling force in the Hartnell governors is due to which of the following components?

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A spring controlled governor is found unstable. It can be made stable by

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A Porter governor has equal arms each of length 250 mm and pivoted on the axis of rotation. Each ball has a mass of 5 kg and the central load has a mass on the sleeve of 25 kg. The radius of rotation of the ball is 150 mm when the governor begins to lift and 200 mm when the governor is at maximum speed. Considering friction at the sleeve of 10N, find the power of the governor in N-m

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The power of a Porter governor is equal to

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For a porter governor, Each arm has a length of 250mm and pivoted on the axis of rotation. Sleeves carry a mass of 25kg and each ball’s mass is 5Kg. Radius of rotation: 150mm at the beginning of lift and 200mm at the maximum speed of governor. Find range in speed neglecting friction in rpm.

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When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled governor is Fc = ar + b, then the governor will be

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For a governor, the sensitivity is 0.5 and the mean speed is 20 rpm, find the minimum speed.

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A Pickering governor is driving a gramophone. Each disc attached to the centre of a leaf spring has a mass of 20 g. The width of each spring is 5 mm and thickness of 0.125 mm. The effective length of each spring is 40 mm. The distance from the spindle axis to the centre of gravity of the mass when the governor is at rest, is 10 mm, find the speed of the turntable in rpm if ratio of the governor speed to the turntable speed is 10.5.

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A centrifugal Watt governor is fitted with two balls, each of mass 2.5 kg. Find the height of the governor, when it is running at 75 r.p.m.

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A governor is said to be isochronous when the equilibrium speed is

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For driving a gramophone, which of the following governor is used?

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For the isochronous Porter governor, the controlling force curve is a straight line passing through the origin.

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Let r represent the radius of rotation, then for an isochronous spring controlled governor, which of the following relation regarding controlling force is true? (a,b are constants)

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If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be unstable.

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If the controlling force line for a spring controlled governor when produced intersects the Y-axis at the origin, then the governor is said to be

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A centrifugal Watt governor is fitted with two balls, each of mass 2.5 kg. Find the sped of the governor, when the balls rise by 20 mm.

asked Sep 23, 2022 in Machine Dynamics by Grayson (34.3k points)

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A Pickering governor is driving a gramophone. Each disc attached to the centre of a leaf spring has a mass of 20 g. The width of each spring is 5 mm and thickness of 0.125 mm. The effective length of each spring is 40 mm. The distance from the spindle axis to the centre of gravity of the mass when the governor is at rest, is 10 mm. Find the speed of the governor in rpm when the sleeve has risen to a height of 0.8 mm. (E = 210kN/mm^2)

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The controlling force diagram for a spring controlled governor is a curve passing through the origin.

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Fred · Answer 1 · 2022-10-14T03:21:11+0000

Correct option is (b) spring loaded governor

For explanation: Since in hartnell governor spring is used, therefore it is the spring loaded governor.

A Hartnell governor is a

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