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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
The design of shafts made of brittle materials is based on

Von Mises theory
Rankine's theory
St Venant's theory
Guest's theory

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

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

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Machine Design
The resistance to fatigue of a material is measured by

Ultimate tensile strength
Elastic limit
Endurance limit
Young's modulus

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Machine Design
A screw is said to be over hauling screw, if the

Friction angle is more than helix angle
Friction angle is equal to helix angle
Friction angle is less than helix angle
Efficiency of screw is 100%

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Machine Design
Multiple threads are used to secure

Low efficiency
High efficiency
High mechanical advantage
High load lifting capacity

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