Q. 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

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Q. The acceleration of the particle moving with simple harmonic motion is __________ at the mean position.

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Q. The ratio of height of Porter governor (when length of arms and links are equal) to the height of Watt's governor is (where m = Mass of the ball, and M = Mass on the sleeve)

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Q. The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust lap.

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Q. The stress induced in a body will be shear stress, when it is subjected to

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Q. A machine mounted on a single coil spring has a period of free vibration of tp . If the spring is cut into four equal parts and placed in parallel and the machine is mounted on them, then the period of free vibration of the new system will become

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Q. When a body is subjected to longitudinal vibrations, the stress induced in a body will be tensile or compressive stress.

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Q. Which of the following statement is correct?

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Q. The magnitude of velocities of the points on a rigid link is

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Q. A pendulum type governor is a Watt governor.

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Q. In a single slider crank chain

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Q. The mechanism consisting of three turning pairs and one sliding pair, is called a

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Q. A mechanism __________ for transmitting or transforming motion.

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Q. The distance moved by the valve from one end to the other end is called valve travel.

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Q. The Klein's method of construction for reciprocating engine mechanism

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Q. A Watt's governor is a spring loaded governor.

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Q. The velocity of the rubbing surface __________ with the distance from the axis of the bearing.

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Q. A system of masses rotating in different parallel planes is in dynamic balance if the

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Q. The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called

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Q. A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become

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