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Machine Design

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

Back pitch
Margin
Diagonal pitch
Pitch

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Machine Design
The application of third type levers is found in

Hand wheel of a punching press
Lever of a loaded safety valve
A pair of tongs
Handle of a hand pump

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Machine Design
When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a

Medium bearing
Short bearing
Long bearing
Square bearing

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Machine Design
A spring is used to

All of these
Measure forces
Store energy
Apply forces

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Machine Design
Residual stress in materials

Acts when external load is applied
Becomes zero when external load is removed
Is independent of external loads
Is always harmful

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Machine Design
Stress concentration in cyclic loading is more serious in

Equally serious in both cases
Ductile materials
Depends on other factors
Brittle materials

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