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Machine Design

Machine Design
Crushing resistance required to crush the rivet per pitch length is

p.d.σc
n.d.t.σc
p.t.σc
(p - d) t.σc

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Machine Design
The function of cutting oil when threading a pipe is to

Help removes chips
Provide cooling action
Lubricate the dies
All of these

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Machine Design
The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given by (where T = Number of teeth on the sprocket)

p = D sin (180°/T)
p = D sin (90°/T)
p = D sin (120°/T)
p = D sin (360°/T)

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Module
Diametral pitch
Axial pitch
Normal pitch

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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

Bending stress
Compressive stress
Shear stress
Tensile stress

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Machine Design
Allen bolts are

Used in aircraft application
Designed for shock load
Provided with hexagonal depression in head
Self locking bolts

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