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Machine Design

Machine Design
Shear stress theory is applicable for

Ductile materials
Elastic materials
All of these
Brittle materials

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Machine Design
When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

3F/2bh
2F/bh
4F/bh
F/bh

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Machine Design
The groove angle of pulleys for V-belt is

420 to 450
300 to 320
More than 400
340 to 360

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Machine Design
Rankine Gordon formula for buckling is valid for

Short and long column
Long column
Very long column
Short column

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Machine Design
The cam follower generally used in automobile engines is

Spherical faced follower
Roller follower
Flat faced follower
Knife edge follower

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Machine Design
For applications involving high stresses in one direction only the following type of thread would be best suited

Acme thread
Buttress thread
ISO metric thread
Square thread

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