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Theory of Machine

Theory of Machine
The periodic time of one oscillation for a simple pendulum is

2π. √(g/l)
2π. √(l/g)
(1/2π). √(l/g)
(1/2π). √(g/l)

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Theory of Machine
Coriolis component acts

None of these
Along sliding surfaces
Somewhere in between above two
Perpendicular to sliding surfaces

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Theory of Machine
A point on a connecting link (excluding end points) of a double slider crank mechanism traces a

Parabolic path
Elliptical path
Straight line path
Hyperbolic path

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Theory of Machine
A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be

80 RPM
100 RPM
90 RPM
data are insufficient

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Theory of Machine
A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is

529.2 N-s/m
52.92 N-s/m
18.52 N-s/m
1.4 N-s/m

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Theory of Machine
The driving and driven shafts connected by a Hooke's joint will have equal speeds, if

sinθ = ± tanα
cosθ = sinα
tanθ = ± cosα
cotθ = cosα

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