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Mechanical Engineering Hydraulics And Fluid Mechanics In Me Difficulty: Medium

A channel is said to be of most economical cross-section, if

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Quenching is not necessary when hardening is done by Two shafts will have equal strength, if The deformation of a bar under its own weight is _________ the deformation, if the same body is subjected to a direct load equal to weight of the body. The interchangeability can be achieved by A round is a rounded surface on the ________ corner of a part.