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Theory of Machine

Theory of Machine
In S.H.M., acceleration is proportional to

Rate of change of velocity
Velocity
Displacement
All of these

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Theory of Machine
Two systems shall be dynamically equivalent when

G. of two coincides
M.I. of two about an axis through e.g. is equal
All of these
The mass of two are same

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Theory of Machine
Critical damping is a function of

Mass and stiffness
Mass and natural frequency
Damping coefficient and natural frequency
Mass and damping coefficient

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Theory of Machine
When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be

ω² r {(n - 1)/n}
ω² r {n/(n - 1)}
ω² r {(n + 1)/n}
ω² r {n/(n + 1)}

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Theory of Machine
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

Swaying couple
None of these
Hammer blow
Tractive force

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Theory of Machine
Whitworth quick return mechanism is obtained by inversion of

Five link mechanism
Kinematic chain
Slider crank mechanism
Roller cam mechanism

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