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Machine Design

Machine Design
The size of a gear is usually specified by

Pressure angle
Pitch circle diameter
Diametral pitch
Circular pitch

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Machine Design
All stresses produced in a belt are

Compressive stresses
Shear stresses
Tensile stresses
Both tensile and compressive stresses

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Machine Design
The fatigue life of a part can be improved by

Coating
Polishing
Shot peening
Electroplating

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Machine Design
The design of shafts made of brittle materials is based on

St Venant's theory
Rankine's theory
Von Mises theory
Guest's theory

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Machine Design
When a bolt is subjected to an external load, the stress induced in the bolt will be

Tensile stress
Shear stress
Any one of these
Combined tensile and shear stress

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Machine Design
When a helical compression spring is cut into halves, the stiffness of the resulting spring will be

One-fourth
One-half
Same
Double

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MORE MCQ ON Machine Design

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