It is possible that the equilibrium speed of the governor decreases with an increase of the radius of rotation of balls.

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How should the equilibrium speed vary with the increase of radius of rotation of the governor balls for stability?

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

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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)

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

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

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

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When the radius of rotation of balls ______________ as the equilibrium speed increases, the governor is said to be unstable.

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

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

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

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In the given figure x axis is the radius of rotation and y axis is the controlling force, identify the correct option. (For a spring controlled governor)

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

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For a stable governor, if the equilibrium speed increases, the radius of governor balls must also increase.

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

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In a governor, if the equilibrium speed is constant for all radii of rotation of balls, the governor is said to be

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

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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.

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

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In the given figure x axis is the radius of rotation and y axis is the controlling force, identify the correct option.

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

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If the line intersects the Controlling force axis in positive direction in the controlling force diagram of the spring controlled governor, then it is stable.

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

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A governor is said to be isochronous when range of speed is zero for all radii of rotation of the balls within the working range, neglecting friction.

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

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The sensitivity of a governor is 0, and the mean speed is 25 rpm, then it is not possible that the governor will be ________

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 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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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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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.

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

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In a spring controlled governor, when the controlling force _____________ as the radius of rotation increases, it is said to be a stable governor.

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

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For a more sensitive governor, the change in angle between OA and the x axis with change in radius of rotation should be? (the x – axis represents radius of rotation and the y axis represents the controlling force.)

asked Sep 23, 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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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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When the speed of the governor decreases, which of the following effect does friction causes?

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

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