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Machine Design

Machine Design
The centre to centre distance between two consecutive rivets in a row, is called

Diagonal pitch
Back pitch
Margin
Pitch

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Machine Design
The product of the diametral pitch and circular pitch is equal to

1/π
π × number of teeth
π
1

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Machine Design
In testing a material for endurance strength, it is subjected to

Completely reversed load
Dynamic load
Impact load
Static load

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Machine Design
Auto frettage is the method of

Joining thick cylinders
Increasing the life of thick cylinders
Calculating stresses in thick cylinders
Pre-stressing thick cylinders

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Machine Design
In thrust bearings, the load acts

In any direction
Perpendicular to the axis of rotation
Along the axis of rotation
Parallel to the axis of rotation

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Machine Design
A plate with an elliptical hole in the centre, with semi-major axis (a) perpendicular to the direction of loading and semi-minor axis (b) along the direction of loading, is subjected to a pull P. The maximum stress induced at the edge of the hole is equal to (where σ = Stress for a plate with no hole i.e. nominal stress)

σ [1 + (b/3a)]
σ [1 + (b/2a)]
σ [1 + (2a/b)]
σ [1 + (3a/b)]

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