Q141
Open questionWhen the nature of contact between the elements of a pair is such that it can only slide relative to the other, the pair is known as a
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Q142
Open questionWhen the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a
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Q143
Open questionThe main disadvantage of the sliding pair is that it is
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Q144
Open questionThe mechanism in which two are turning pairs and two are sliding pairs, is called a
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Q145
Open questionIn a pantograph, all the pairs are
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Q146
Open questionFrequency of vibrations is usually expressed in
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Q147
Open questionIn a steam engine, the distance by which the outer edge of the D-slide valve overlaps the steam port is called
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Q148
Open questionIf the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be
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Q149
Open questionA rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
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Q150
Open questionThe frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.
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Q151
Open questionA system in dynamic balance implies that
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Q152
Open questionFor dynamic balancing of a shaft
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Q153
Open questionCross head and guides form a
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Q154
Open questionA slider crank chain consists of following numbers of turning and sliding pairs
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Q155
Open questionA body of weight W is required to move up the rough inclined plane whose angle of inclination with the horizontal is . The effort applied parallel to the plane is given by (where = = Coefficient of friction between the plane and the body)
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Q156
Open questionThe Scott-Russell mechanism consists of
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Q157
Open questionThe number of links in pantograph mechanism is equal to
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Q158
Open questionThe indicator using Watt mechanism is known as
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Q159
Open questionWhich is the false statement about the properties of instantaneous center?
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Q160
Open questionIn 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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