Mechanical Engineering :: Theory of Machine
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Which of the following statement is correct?
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The magnitude of velocities of the points on a rigid link is
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In a single slider crank chain
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The mechanism consisting of three turning pairs and one sliding pair, is called a
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A system of masses rotating in different parallel planes is in dynamic balance if the
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The velocity of sliding __________ the distance of the point of contact from the pitch point.
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The radial distance from the top of a tooth to the bottom of a tooth in a meshing gear, is called
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A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become
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The frictional torque transmitted in a truncated conical pivot bearing, considering uniform pressure, is
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A.
The primary unbalanced force is less than the secondary unbalanced force.
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B.
The primary unbalanced force is maximum twice in one revolution of the crank.
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C.
The unbalanced force due to reciprocating masses varies in magnitude and direction both.
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D.
The magnitude of swaying couple in locomotives is inversely proportional to the distance between the two cylinder centre lines
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A.
directly proportional to the distance from the points to the instantaneous centre and is parallel to the line joining the point to the instantaneous centre
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B.
directly proportional to the distance from the points to the instantaneous centre and is perpendicular to the line joining the point to the instantaneous centre
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C.
inversely proportional to the distance from the points to the instantaneous centre and is parallel to the line joining the point to the instantaneous centre
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D.
inversely proportional to the distance from the points to the instantaneous centre and is perpendicular to the line joining the point to the instantaneous centre
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μ W cosec α (r1 + r2) 
μ W cosec α (r1 + r2) 