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Machine Design

Machine Design
The draw of cotter need not exceed

3 mm
10 mm
5 mm
20 mm

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Machine Design
A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be

2.8
3.0
3.5
2.5

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Machine Design
Which one of the following loading is considered for the design of axles?

Bending moment only
Combined action of bending moment, twisting moment and axial thrust
Combined bending moment and twisting moments
Twisting moment only

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Machine Design
In radial bearings, the load acts __________ to the axis of rotation.

None of these
Parallel
Both A and B
Perpendicular

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Machine Design
The material commonly used for crane hooks is

Cast iron
Wrought iron
Mild steel
Aluminium

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Machine Design
The design of shafts made of brittle materials is based on

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

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