Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design Rankine's theory of failure is applicable for following type of materials Plastic Brittle Ductile Elastic Plastic Brittle Ductile Elastic ANSWER DOWNLOAD EXAMIANS APP
Machine Design Failure of a material is called fatigue when it fails At the elastic limit Below the elastic limit Below the yield point At the yield point At the elastic limit Below the elastic limit Below the yield point At the yield point ANSWER DOWNLOAD EXAMIANS APP
Machine Design Whether any core is required in wire ropes Rarely Yes Sometimes No Rarely Yes Sometimes No ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a marine flange coupling, the thickness of flange is taken as d/2 d/3 d/4 3d/4 d/2 d/3 d/4 3d/4 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stretching in a belt can be controlled by __________ the stress in the belt. Both A and B None of these Reducing Increasing Both A and B None of these Reducing Increasing ANSWER DOWNLOAD EXAMIANS APP
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