Machine Design
According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length)

3 × (π/4) d² × τ × n
(π/4) d² × τ × n
2 × (π/4) d² × τ × n
1.875 × (π/4) d² × τ × n

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Machine Design
In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing

Becomes minimum at an optimum speed and then increases with further increase in speed
Is minimum at zero speed and increases monotonically with increase in speed
Remains constant at all speeds
Is maximum at zero speed and decreases monotonically with increase in speed

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