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Machine Design

Machine Design
The belt slip occurs due to

Loose belt
Any one of the above
Driving pulley too small
Heavy load

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Machine Design
The shear modulus of resilience is proportional to

(Shear stress)²
(Shear stress)⁴
(Shear stress)3
Shear stress

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Machine Design
When compared to the rod of the same diameter and material, a wire rope

Provides much greater time for remedial action before failure
Has a much smaller load carrying capacity
Does not provide much warning before failure
Is less flexible

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Machine Design
When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt)

1.25 d
0.75 d
d
0.5 d

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

Endurance limit
Elastic limit
Young's modulus
Ultimate tensile strength

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Machine Design
Basic hole is one

Whose upper deviation is zero
Does not exist
Whose lower as well as upper deviations are zero
Whose lower deviation is zero

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