Machine Design Factor of safety for fatigue loading is the ratio of Elastic limit to the yield point Elastic limit to the working stress Endurance limit to the working stress Young's modulus to the ultimate tensile strength Elastic limit to the yield point Elastic limit to the working stress Endurance limit to the working stress Young's modulus to the ultimate tensile strength ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is 0.65 0.35 0.5 0.2 0.65 0.35 0.5 0.2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft) 2d + 20 mm d + 17 mm 3.5 d 2d + 13 mm 2d + 20 mm d + 17 mm 3.5 d 2d + 13 mm 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 If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by Z/pN p/ZN ZN/p N/Zp Z/pN p/ZN ZN/p N/Zp ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that Joint may not open up Bolts are weakest elements Bolts will not loosen during service The resultant load on the bolt would not be affected by the external cyclic load Joint may not open up Bolts are weakest elements Bolts will not loosen during service The resultant load on the bolt would not be affected by the external cyclic load ANSWER DOWNLOAD EXAMIANS APP
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