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Mechanical Engineering Objective Questions { Theory of Machines }

106. Tangential acceleration direction is
A.Along the angular velocity
B.Opposite to angular velocity
C.May be any one of these
D.Perpendicular to angular velocity
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107. Corioli's component is eneountered in
A.Quick return mechanism of shaper
B.Four bar chain mechanism
C.Slider crank mechanism
D.(a) and (c) above
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108. Klein's construction gives a graphical construction for
A.Slider-crank mechanism
B.Velocity polygon
C.Acceleration polygon
D.Four bar chain mechanism
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109. The velocity of a slider with reference to a fixed point about which a bar is rotating and slider sliding on the bar will be
A.Parallel to bar
B.Perpendicular to bar
C.Somewhere in between above two
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110. Klein's construction can be used to determine acceleration of various parts when the crank is at
A.Inner dead centre
B.All of the above.
C.Right angles to the link of the stroke
D.At 45? to the line of the stroke
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111. The number of dead centres in a crank driven slider crank mechanism are
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112. Corioli's component acts
A.Perpendicular to sliding surfaces
B.Along sliding surfaces
C.Somewhere in between above two
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