Q. The time taken by a particle for one complete oscillationis known as periodic time.

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Q. The danger of breakage and vibration is maximum

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Q. The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the lengm of connecting rod to radius of crank)

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Q. 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

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Q. The component of the acceleration, parallel to the velocity of the particle, at the given instant is called

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Q. In a multiple V-belt drive, if one of the belt is broken, then we should replace

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Q. Most of the engines, generally, do not require balancing of secondary forces and couples.

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Q. The secondary unbalanced force is maximum __________ in one revolution of the crank.

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

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Q. In order to have a good grip on the pulley, the V-belt should touch the bottom of the groove in the pulley.

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Q. In order to double the period of a simple pendulum, the length of the string should be

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Q. When a slider moves on a fixed link having curved surface, their instantaneous centre lies

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Q. Scotch yoke mechanism is used to generate

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Q. The unbalanced primary forces in a reciprocating engine are

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Q. The balancing of a rigid rotor can be achieved by appropriately placing balancing masses in

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Q. The frictional torque transmitted in a conical pivot bearing with assumption of uniform pressure is __________ as compared to uniform wear.

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Q. In a cam drive with uniform velocity follower, the sharp corners of the displacement diagram are rounded off at the beginning and at the end of each stroke. This is done

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Q. In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the angle of advance of the eccentric but reducing the throw of the eccentric and keeping the steam lap and exhaust lap constant. This method will cause withdrawing or throttling of steam.

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Q. A governor is said to be stable, if the

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Q. In a Proell governor, the balls are attached to the extension of lower links.

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