Q. In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

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Q. In order to facilitate starting of locomotive in any position, the cranks of a locomotive with two cylinders, are placed at

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Q. The coriolis component of acceleration leads the sliding velocity by

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Q. The length of a simple pendulum which gives the same frequency as the compound pendulum, is

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Q. Which of the following is a spring controlled governor?

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Q. The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the right. The effect of gyroscopic couple on the aeroplane will be to dip the nose and raise the tail.

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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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