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Machine Design

Machine Design
The draw of cotter need not exceed

5 mm
10 mm
20 mm
3 mm

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Machine Design
In thrust bearings, the load acts

Perpendicular to the axis of rotation
Parallel to the axis of rotation
In any direction
Along the axis of rotation

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Machine Design
If two springs are in parallel then their overall stiffness will be

Double
None of these
Half
Same

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Machine Design
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

Sawn nut
Castle nut
Jam nut
Ring nut

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Machine Design
A double fillet welded joint with parallel fillet weld of length 'l' and leg 's' is subjected to a tensile force 'P'. Assuming uniform stress distribution, the shear stress in the weld is given by

2P/s.l
P/2.s.l
P/√2.s.l
√2P/s.l

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Machine Design
The endurance limit of a material with finished surface in comparison to rough surface is

Less
Same
More
More or less depending on quantum of load

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