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Theory of Machine

Theory of Machine
Rectilinear motion of piston is converted into rotary by

Gudgeon pin
Connecting rod
Slider crank
Cross head

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Theory of Machine
For simple harmonic motion of the of follower, a cosine curve represents

All of these
Acceleration diagram
Displacement diagram
Velocity diagram

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

Longitudinal vibration
Torsional vibration
Transverse vibration
None of these

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

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

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing)

²/₃ μWR
½μWR
¾μWR
μwr

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

Spiral gear
Spur gear
Helical gear
Bevel gear

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