Machine Design Stress concentration factor is defined as the ratio of Nominal stress to the maximum stress Nominal stress to the endurance limit Maximum stress to the endurance limit Maximum stress to the nominal stress Nominal stress to the maximum stress Nominal stress to the endurance limit Maximum stress to the endurance limit Maximum stress to the nominal stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in cyclic loading is Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Seriousness would depend on other factors ANSWER DOWNLOAD EXAMIANS APP
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.τu πd.t.τu t.τu π/4 × d² × tτu π/4 × d².τu πd.t.τu t.τu π/4 × d² × tτu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear plane in case of bolts should Never be across the threaded portion Be parallel to axis of bolt Be across threaded portion of shank Be normal to threaded portion of shank Never be across the threaded portion Be parallel to axis of bolt Be across threaded portion of shank Be normal to threaded portion of shank ANSWER DOWNLOAD EXAMIANS APP
Machine Design The spring mostly used in gramophones is Helical spring Conical spring Flat spiral spring Volute spring Helical spring Conical spring Flat spiral spring Volute spring ANSWER DOWNLOAD EXAMIANS APP
Machine Design A connecting rod should be Equally strong in buckling about X-axis and Y-axis Strong in buckling about X-axis Any one of the above Strong in buckling about Y-axis Equally strong in buckling about X-axis and Y-axis Strong in buckling about X-axis Any one of the above Strong in buckling about Y-axis ANSWER DOWNLOAD EXAMIANS APP
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