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Theory of Machine

Theory of Machine
The type of gears used to connect two non parallel and non intersecting shafts is

Bevel gear
Spur gear
Helical gear
Spiral gear

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Theory of Machine
A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become

4 fn
fn/2
2 fn
8 fn

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Theory of Machine
A Porter governor is a

Inertia governor
Dead weight governor
Pendulum type governor
Spring loaded governor

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Theory of Machine
In a spring controlled governor, when the controlling force ____ as the radius of rotation increases, it is said to be a stable governor.

None of the listed here
Increases
Remains constant
Decreases

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Theory of Machine
The working depth of a gear is the radial distance from the

Top of a tooth to the bottom of a tooth
Addendum circle to the clearance circle
Pitch circle to the bottom of a tooth
Pitch circle to the top of a tooth

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Theory of Machine
Coriolis component acts

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

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