Q. Frequency of vibrations is usually expressed in

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Q. The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

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Q. The ratio of the number of teeth to the pitch circle diameter in millimetres, is called

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Q. The ratio of the pitch circle diameter in millimetres to the number of teeth, is called circular pitch.

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Q. The rotating shafts tend to vibrate violently at whirling speeds because

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Q. Which of the following is an inversion of a double slider crank chain?

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Q. The unbalanced force due to revolving masses

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Q. Which of the following statement is correct for gears ?

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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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