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Machine Design

Machine Design
Guest's theory is used for

Brittle materials
Elastic materials
Plastic materials
Ductile materials

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Machine Design
Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is

F + P
F
P
F.P

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Machine Design
For steel, the ultimate strength in shear as compared to ultimate strength in tension is

43834
43864
43833
43832

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Machine Design
The centrifugal tension in belts

Increase the wrap angle
Decreases the power transmitted
Increases the power transmitted
Increases the belt tension without increasing power transmission

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Machine Design
The shear modulus of resilience is proportional to

Shear stress
(Shear stress)3
(Shear stress)⁴
(Shear stress)²

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Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Short bearing
Medium bearing
Square bearing
Long bearing

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