Machine Design
Which of the following statement is correct, for two shafts connected in parallel?

Torque in each shaft is the same
Torsional stiffness of each shaft is the same
Shear stress in each shaft is the same
Angle of twist of each shaft is the same

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Machine Design
In case of thick cylinders, the tangential stress across the thickness of cylinder is

Maximum at the inner surface and zero at the outer surface
Maximum at the outer surface and minimum at the inner surface
Maximum at the inner surface and minimum at the outer surface
Maximum at the outer surface and zero at the inner surface

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Machine Design
Plastic flow in ductile materials

Has no effect on it
Increases the seriousness of static loading stress concentration
Depends on other considerations
Lessens the seriousness of static loading stress concentration

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