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 t.τu π/4 × d².τu π/4 × d² × tτu πd.t.τu t.τu π/4 × d².τu π/4 × d² × tτu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bearing characteristic number in a hydrodynamic bearing depends upon Viscosity, speed and load Viscosity, speed and bearing pressure Length, width and speed Length, width and load Viscosity, speed and load Viscosity, speed and bearing pressure Length, width and speed Length, width and load ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as M8 - 6d M8 M6 - 8d M6 M8 - 6d M8 M6 - 8d M6 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The function of cutting oil when threading a pipe is to Lubricate the dies Help removes chips All of these Provide cooling action Lubricate the dies Help removes chips All of these Provide cooling action ANSWER DOWNLOAD EXAMIANS APP
Machine Design A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, the junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cylinder is 3.6 N/mm² tension 7.2 N/mm² compression 7.2 N/mm² tension 3.6 N/mm² compression 3.6 N/mm² tension 7.2 N/mm² compression 7.2 N/mm² tension 3.6 N/mm² compression ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material generally used for aircraft components is Aluminium High speed steel Stainless steel Mild steel Aluminium High speed steel Stainless steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
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