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Machine Design

Machine Design
Rankine's theory is used for

Plastic materials
Elastic materials
Brittle materials
Ductile materials

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Machine Design
A key capable of tilting in a recess milled out in a shaft is known as

Flat saddle key
Hollow saddle key
Feather key
Woodruff key

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Machine Design
The stress induced in the belt is,

Compressive stress
Direct shear stress
Tensile stress
Torsional shear stress

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Machine Design
A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is

3.6 N/mm² tension
7.2 N/mm² compression
3.6 N/mm² compression
7.2 N/mm² tension

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Machine Design
For a bevel gear having the pitch angle θ, the ratio of formative number of teeth (TE) to actual number of teeth (T) is

1/tanθ
1/cosθ
sinθ cosθ
1/sinθ

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the stress induced in the wire is

Compressive stress
Bending stress
Shear stress
Tensile stress

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