Resistance in a sleeve which results in opposing the motion is caused by _______

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Power of a governor is the work done by the sleeve for a given percentage change in speed.

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

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If the sleeve lift is 80 mm and Power generated by the governor is 6 N-m, then find the mean effort.

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

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The effort of a governor is the _________ force exerted at the sleeve for a given percentage change of speed.

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

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Find the power of the governor if the Mean effort is 50 N and sleeve lift is 100 mm.

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

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When there is no force on the sleeve, then the governor must be running steadily.

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

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If the mean effort is doubled and the sleeve lift is halved, If P was the original power then what will be the power post the changes?

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

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Power of a governor depends on which of the following factor?

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

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Consider two governors A and B running at the same speed. When this speed increases or decreases by a certain amount, the lift of the sleeve of governor A is greater than the lift of the sleeve of governor B. Which of the following statement is true for the above situation?

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

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

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

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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

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)

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

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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 range of speed in rpm.

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

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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. Neglecting friction at the sleeve, find the power of the governor in N-m.

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

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For two governors A and B, the lift of sleeve of governor A is more than that of governor B, for a given fractional change in speed. It indicates that

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

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

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

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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. Neglecting friction at the sleeve, find the governor effort.

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

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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. Neglecting friction at the sleeve, find the sleeve lift.

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

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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 governor effort.

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

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When the sleeve of a Porter governor moves upwards, the governor speed

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

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For a given lift of the sleeve, the sensitiveness of the governor increases as the speed range decreases

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

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When the sleeve of a Porter governor moves downwards, the governor speed

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

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When the sleeve of a porter governor moves upwards, the governor speed

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

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The sensitiveness of a governor depends upon the lift of the sleeve.

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

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Which of the following part of the spring is attached to the sleeve?

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

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When friction acts at the sleeve the maximum angular velocity increases?

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

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