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Theory of Machine

Theory of Machine
Typewriter constitutes

Mechanism
Inversion
Structure
Machine

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Theory of Machine
When two pulleys are connected by means of a cross belt drive, then both the pulleys will rotate in _________ directions.

Perpendicular
Opposite
Same
None of these

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Theory of Machine
The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as

Spur gearing
Helical gearing
Spiral gearing
Bevel gearing

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

Gudgeon pin
Slider crank
Connecting rod
Cross head

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Theory of Machine
The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled governor is

Fc = ar
Fc = ar - b
Fc = ar + b
Fc = a/r + b

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Theory of Machine
Efficiency of a screw jack is given by

tan (α - φ)/tanα
tanα/tan (α - φ)
tanα/tan (α +φ)
tan (α + φ)/tanα

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