Machine Design Which of the following material has the maximum ductility? Zinc Copper Mild steel Aluminium Zinc Copper Mild steel Aluminium ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to obtain bolt of uniform strength Tighten die bolt properly Increase shank diameter Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase its length Tighten die bolt properly Increase shank diameter Drill an axial hole through head up to threaded portion so that shank area is equal to root area of thread Increase its length ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? The efficiency of Acme (trapezoidal) thread is less than that of a square thread The efficiency of a self locking screw can not be more than 50% If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% Both (A) and (B) The efficiency of Acme (trapezoidal) thread is less than that of a square thread The efficiency of a self locking screw can not be more than 50% If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Increase with increase in y Depend on other considerations 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 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 When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced will be 6F/ πd² 16F/ 3πd² 8F/ πd² 4F/ πd² 6F/ πd² 16F/ 3πd² 8F/ πd² 4F/ πd² ANSWER DOWNLOAD EXAMIANS APP
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