Related Questions

A point B on a rigid link AB moves with respect to A with angular velocity $$\omega $$ rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)
A vBA × AB
B $$\frac{{{\text{vBA}}}}{{{\text{AB}}}}$$
C v2BA
D $$\frac{{{{\text{v}}^2}{\text{BA}}}}{{{\text{AB}}}}$$
A point B on a rigid link AB moves with respect to A with angular velocity $$\omega $$ rad/s. The total acceleration of B with respect to A will be equal to
A Vector sum of radial component and Coriolis component
B Vector sum of tangential component and Coriolis component
C Vector sum of radial component and tangential component
D Vector difference of radial component and tangential component
The direction of linear velocity of any point on a link with respect to another point on the same link is
A parallel to the link joining the points
B perpendicular to the link joining the points
C at 450 to the link joining the points
D none of the mentioned
In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is
A equal to sum of other two
B greater than sum of other two
C less than sum of other two
D none of the mentioned
In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative motion of other links
A will remain same
B will change
C will not occur
D none of the mentioned
In a rigid link OA, velocity of 'A' w.r.t. 'O' will be
A Parallel to OA
B Perpendicular to OA
C At 45° to OA
D Along AO
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.
A Equal to
B Equal and opposite to
C Less than
D Greater than
In impulse turbines, when friction is neglected, the relative velocity of steam at outlet tip of the blade is _________ the relative velocity of steam at inlet tip of the blade.
A Equal to
B Less than
C Greater than
D None of these
If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity
A Vi = Vo
B Vt > Vo
C U
D V = Uo
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at
A the centre of the disc
B the point of contact
C an infinite distance on the plane surface
D the point on the circumference situated vertically opposite to the contact point

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