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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

43869
43929
44045
44047

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Machine Design
A universal coupling is used to connect two shafts

Which are not in exact alignment
Whose axes intersect at a small angle
Have lateral misalignment
Which are perfectly aligned

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Machine Design
The expression 0.175 - 0.841/T is the Lewis form factor for

20° stub system
20° full depth involute system
None of these
14½° composite and full depth involute system

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Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

0.35
0.5
0.65
0.2

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Machine Design
A bench vice has following type of threads

Acme
Metric
Buttress
Square

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Machine Design
In levers, leverage is the ratio of

Load lifted to the effort applied
Load arm to the effort arm
Effort arm to the load arm
Mechanical advantage to the velocity ratio

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