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The controlling force curve of an spring loaded governor is given by F...

Q.  
The controlling force curve of an spring loaded governor is given by F = ar−c where r is the radius of rotation of the governor balls, and a and c are constants. The governor is


Answer & Explanation

The controlling force curve is passing through r in the positive axis, therefore, the governor is stable.

Thus correct option is: A.

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More Questions Theory of Machines:

Q.  
A Hartnell governor is a governor of

A. Inertia type

B. Pendulum type

C. Centrifugal type

D. Dead weight type


Answer & Explanation

Q.  
A governor is said to be isochronous when the equilibrium speed for all radii or rotation the balls within the working range

A. Is not constant

B. Is constant

C. Varies uniformly

D. Has uniform acceleration


Answer & Explanation

Q.  
A Hartnell governor has its controlling force F given by F = p+qr where r is the radius of 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


Answer & Explanation

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

A. Increasing the spring stiffness

B. Decreasing the spring stiffness

C. Increasing the ball weight

D. Decreasing the ball weight


Answer & Explanation
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