Q. The lower pairs are __________ pairs.

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Q. The arrangement is called bevel gearing, when two __________ are connected by gears.

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Q. The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the

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Q. The maximum fluctuation of speed is the

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Q. A single degree of freedom system is given by , with usual notations. It represents

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Q. In a Hartnell governor, the lift of the sleeve is given by (where r1 and r2 = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever)

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Q. When a mechanism is required to transmit power or to do some particular type of work, then it becomes a machine.

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Q. The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is

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Q. When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than

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Q. When the nature of contact between the elements of a pair is such that it can turn or revolve about a fixed axis, the pair is known as a rolling pair.

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Q. Creep in belt drive is due to

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Q. Which of the following statement is wrong?

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Q. A watt's governor can work satisfactorily at speeds from

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Q. The displacement of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r1 = Minimum radius of the cam, and θ = Angle turned through by the cam)

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Q. The contact ratio is the ratio of

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Q. An exact straight line motion mechanism is a

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Q. A body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is α. The effort applied parallel to the plane is given by (where μ = tan φ = Coefficient of friction between the plane and the body)

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Q. In vibration isolation system, if ω/ωn > 2, then for all values of damping factor, the trans-missibility (i.e. the ratio of the force transmitted to the force applied) will be less than unity.

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Q. The acceleration of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by

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Q. In a four bar chain or quadric cycle chain

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