Q. At the nodal point in a shaft, the amplitude for torsional vibration will be

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Q. When a body is subjected to transverse vibrations, the stress induced in a body will be

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Q. The magnitude of linear velocity of a point B on a link AB relative to point A is (where ω = Angular velocity of the link AB)

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Q. A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is

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Q. The mechanism in which two are turning pairs and two are sliding pairs, is called a

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Q. In a multiple V-belt drive, all the belts should stretch at the same rate.

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Q. In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

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Q. The cam follower generally used in air-craft engines is

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Q. In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

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Q. If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

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Q. The factional torque for square thread at the mean radius r while raising load W is given by

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Q. Whitworth quick return motion mechanism is an inversion of a double slider crank chain.

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Q. The maximum gyroscopic couple acting on the ship tends to shear the holding down bolts.

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Q. In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

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Q. A force acting in the opposite direction to the motion of the body is called force of friction.

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Q. A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

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Q. When two pulleys are connected by means of an open belt drive, then both the pulleys will rotate is opposite directions.

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Q. A mechanism consisting of four links is called a __________ mechanism.

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Q. The amplitude of vibration is always __________ the radius of the circle.

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Q. An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

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