Machine Design The maximum bending stress in a curved beam having symmetrical section always occur at the Centroidal axis Neutral axis Inside fiber Outside fiber Centroidal axis Neutral axis Inside fiber Outside fiber 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 × tτu πd.t.τu π/4 × d².τu t.τu π/4 × d² × tτu πd.t.τu π/4 × d².τu t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up so that tightening stress Is 50% of yield point Is just sufficient to hold parts together Is about yield point divided by safety factor Approaches yield point Is 50% of yield point Is just sufficient to hold parts together Is about yield point divided by safety factor Approaches yield point ANSWER DOWNLOAD EXAMIANS APP
Machine Design Coaxing is the procedure of increasing Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling Metal hardness by surface treatment Fatigue limit by over-stressing the metal by successively increasing loadings Metal resistance to corrosion by coating Metal strength by cycling Metal hardness by surface treatment ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to 1 T 2 T T/2 4 T 1 T 2 T T/2 4 T ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a load W is applied instantaneously on a bar; Then the stress induced in bar will Decrease with decrease in y Depend on other considerations Increase with increase in y Be independent of ratio of mass of load W to mass of bar (y) Decrease with decrease in y Depend on other considerations Increase with increase in y Be independent of ratio of mass of load W to mass of bar (y) ANSWER DOWNLOAD EXAMIANS APP
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