Machine Design The elasticity is the property of a material which enables it to Draw into wires by the application of a tensile force Regains its original shape after deformation when the external forces are removed Retain deformation produced under load permanently Resists fracture due to high impact loads Draw into wires by the application of a tensile force Regains its original shape after deformation when the external forces are removed Retain deformation produced under load permanently Resists fracture due to high impact loads ANSWER DOWNLOAD EXAMIANS APP
Machine Design A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be 12 kN/m 30 kN/m 24 kN/m 6 kN/m 12 kN/m 30 kN/m 24 kN/m 6 kN/m ANSWER DOWNLOAD EXAMIANS APP
Machine Design Screws used for power transmission should have Low efficiency Very fine threads High efficiency Strong teeth Low efficiency Very fine threads High efficiency Strong teeth ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear plane in case of bolts should Be across threaded portion of shank Never be across the threaded portion Be parallel to axis of bolt Be normal to threaded portion of shank Be across threaded portion of shank Never be across the threaded portion Be parallel to axis of bolt Be normal to threaded portion of shank ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is P F + P F.P F P F + P F.P F ANSWER DOWNLOAD EXAMIANS APP
Machine Design Stress concentration factor is defined as the ratio of 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 Nominal stress to the maximum stress Nominal stress to the endurance limit ANSWER DOWNLOAD EXAMIANS APP
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