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Machine Design

Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.5 d
0.8 d
1.2 d
d

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

Young's modulus
Elastic limit
Ultimate tensile strength
Endurance limit

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Machine Design
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.

Three times
Equal to
Twice
Four times

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Machine Design
The railway carriage couplings have

Knuckle threads
Buttress threads
Acme threads
Square threads

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Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Working depth
Addendum
Clearance
Dedendum

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Machine Design
When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is

A combination of bending stress and direct shear stress
A combination of torsional shear stress and bending
Bending stress only
Direct shear stress only

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