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Machine Design

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

0.65
0.35
0.5
0.2

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Machine Design
The property of a material which enables it to be drawn into wires with the application of a tensile force, is called

Ductility
Malleability
Elasticity
Plasticity

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Machine Design
In order to obtain bolt of uniform strength

Tighten die bolt properly
Increase its length
Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread
Increase shank diameter

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Machine Design
A double strap butt joint (with equal straps) is

Either in single shear or double shear
Any one of these
Always in single shear
Always in double shear

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Machine Design
Which of the following welded joint is designed for shear strength?

Parallel fillet welded joint
All of these
Transverse fillet welded joint
Butt welded joint

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Machine Design
The wear load should be __________ the dynamic load.

Greater than
Equal to
Less than
None of these

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