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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44045
44047
43869
43929

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Machine Design
The bending stress in a curved beam is

Zero at the centroidal axis
None of these
Zero at the point other than centroidal axis
Maximum at the neutral axis

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Machine Design
According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as

M8 - 6d
M6
M8
M6 - 8d

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Machine Design
The taper on a rectangular sunk key is

1 in 16
1 in 32
1 in 48
1 in 100

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Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

25°
8°
5°
15°

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Machine Design
The centre distance between two meshing involute gears is equal to

Sum of pitch circle radii/cosφ
Difference of base circle radii/cosφ
Difference of pitch circle radii/cosφ
Sum of base circle radii/cosφ

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