Theory of Machine
When the particles of a body moves perpendicular to its axis, then the body is said to have

Torsional vibration
None of these
Longitudinal vibration
Transverse vibration

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Theory of Machine
Inertia force acts

Opposite to the direction of acceleration force
Perpendicular to the acceleration force
Along the direction of acceleration force
None of the listed here

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Theory of Machine
A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will

Become equal to 2R
Become equal to R/4
Remain same as before
Become equal to R/2

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