Machine Design The load cup of a screw jack is made separate from the head of the spindle to Enhance the load carrying capacity of the jack Prevent the rotation of load being lifted Reduce the value of frictional torque Reduce the effort needed for lifting the working load Enhance the load carrying capacity of the jack Prevent the rotation of load being lifted Reduce the value of frictional torque Reduce the effort needed for lifting the working load ANSWER DOWNLOAD EXAMIANS APP
Machine Design In block brakes, the ratio of shoe width to wheel diameter is taken between 0.25 and 0.50 0.75 and 1 0.50 and 0.75 0.1 and 0.25 0.25 and 0.50 0.75 and 1 0.50 and 0.75 0.1 and 0.25 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is equal to helix angle Friction angle is less than helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is equal to helix angle Friction angle is less than helix angle 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 π/4 × d² × tτu t.τu π/4 × d².τu πd.t.τu π/4 × d² × tτu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design In case of V belt drive The belt should not touch the sides of groove in the pulley The belt should touch the bottom of groove in the pulley None of these The belt should not touch the bottom of groove in the pulley The belt should not touch the sides of groove in the pulley The belt should touch the bottom of groove in the pulley None of these The belt should not touch the bottom of groove in the pulley ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to remove internal stresses produced by hardening the steel, the process usually adopted is Tempering Normalizing Annealing Spheroidizing Tempering Normalizing Annealing Spheroidizing ANSWER DOWNLOAD EXAMIANS APP
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