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Machine Design

Machine Design
The number of slots in a 25 mm castle nut is

2
8
4
6

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Machine Design
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

Maximum principal stress theory
Maximum shear stress theory
Maximum strain energy theory
Maximum distortion energy theory

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Machine Design
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

Head
Thread
Shank
Middle

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Machine Design
In helical bevel gearing, the axes of shafts are __________ and the teeth are curved.

Intersecting
None of these
Intersecting and non-parallel
Non-intersecting and non-parallel

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Diametral pitch
Module
Axial pitch
Normal pitch

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Machine Design
The coefficient of friction in belt drive depends upon

Belt velocity
Materials of belt and pulley
Material of pulley
Material of belt

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