Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.4985/ √δS
0.571/ √δS
0.6253/ √δS
0.5615/ √δS

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Theory of Machine
Which of the following statement is correct for involute gears?

The pressure angle is constant throughout the teeth engagement.
A convex flank is always in contact with concave flank.
The interference is inherently absent.
The variation in centre distance of shafts increases radial force.

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