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Theory of Machine

Theory of Machine
The acceleration of the particle moving with simple harmonic motion is _________ at the mean position.

Minimum
Zero
None of these
Maximum

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Theory of Machine
When a body is subjected to transverse vibrations, the stress induced in a body will be

Bending stress
Tensile stress
Shear stress
Compressive stress

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Theory of Machine
The height of a Watt's governor is

Directly proportional to speed
Inversely proportional to (speed)²
Directly proportional to (speed)²
Inversely proportional to speed

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Theory of Machine
Rectangular bar in a rectangular hole is the following type of pair

Incompletely constrained motion
Partially constrained motion
Freely constrained motion
Completely constrained motion

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Theory of Machine
The indicator using Watt mechanism is known as

Thompson indicator
Thomson indicator
Richard indicator
Simplex indicator

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Theory of Machine
When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle)

[(r² + R²) cosφ]/2
[(r + R) cosφ]/2
[(r + R) sinφ]/2
[(r² + R²) sinφ]/2

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