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) π/4 × d² × tτu πd.t.τu π/4 × d².τu t.τu π/4 × d² × tτu πd.t.τu π/4 × d².τu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design In static loading, stress concentration is more serious in Brittle as well as ductile materials Ductile materials Brittle materials Elastic materials Brittle as well as ductile materials Ductile materials Brittle materials Elastic materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To prevent the lubricant from flowing out To facilitate slipping of balls To reduce friction To maintain the balls at a fixed distance apart To prevent the lubricant from flowing out To facilitate slipping of balls To reduce friction To maintain the balls at a fixed distance apart ANSWER DOWNLOAD EXAMIANS APP
Machine Design The taper on cotter varies from 1 in 32 to 1 in 24 1 in 48 to 1 in 24 1 in 24 to 1 in 20 1 in 15 to 1 in 10 1 in 32 to 1 in 24 1 in 48 to 1 in 24 1 in 24 to 1 in 20 1 in 15 to 1 in 10 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in static loading is Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Seriousness would depend on other factors Equally serious in both types of materials Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Seriousness would depend on other factors Equally serious in both types of materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design The pitch diameter is the __________ diameter of an external or internal screw thread. Largest None of these Smallest Effective Largest None of these Smallest Effective ANSWER DOWNLOAD EXAMIANS APP
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