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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

44047
43869
43929
44045

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.7 times
0.6 times
0.8 times
0.4 times

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

Both ends hinged
One end fixed and the other end free
Both ends fixed
One end fixed and the other end hinged

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Machine Design
For applications involving high stresses in one direction only the following type of thread would be best suited

Square thread
Acme thread
Buttress thread
ISO metric thread

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Machine Design
A cotter joint is used to connect two __________ rods.

Perpendicular
Co-axial
Parallel
None of these

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Machine Design
The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical stress concentration factor Kt as

(Kt + 1)/ (Kf + 1)
(Kt - 1)/ (Kf - 1)
(Kf - 1)/ (Kt - 1)
(Kf + 1)/ (Kt + 1)

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