Machine Design
In second type of levers,

Load is in between the fulcrum and effort
None of these
Effort is in between the fulcrum and load
Fulcrum is in between the load and effort

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Machine Design
Coaxing is the procedure of increasing

Metal strength by cycling
Fatigue limit by over-stressing the metal by successively increasing loadings
Metal resistance to corrosion by coating
Metal hardness by surface treatment

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