Machine Design The connecting rod bolts are tightened up so that tightening stress 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 Is 50% of yield point Is just sufficient to hold parts together ANSWER DOWNLOAD EXAMIANS APP
Machine Design If a spring is cut down into two springs, the stiffness of cut springs will be Same Double None of these Half Same Double None of these Half ANSWER DOWNLOAD EXAMIANS APP
Machine Design Shaft coupling is used in machinery to All of these Introduce protection against over loads Introduce mechanical flexibility Reduce the transmission of shock loads All of these Introduce protection against over loads Introduce mechanical flexibility Reduce the transmission of shock loads ANSWER DOWNLOAD EXAMIANS APP
Machine Design Tearing resistance required to tear off the plate per pitch length is (where p = Pitch of rivets, d = Dia. of rivet hole, and σt = Permissible tensile stress for plate material) p.d.σt (p - d) t.σt p.t.σt p.d.σt (p - d) t.σt p.t.σt ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given byWhere m = mass of belt per meter (kg/m)v = belt velocity (m/s)f = coefficient of frictiona = angle of wrap (radians) P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a machine member is subjected to torsion, the torsional shear stress set up in the member is Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member Maximum at both the centroidal axis and outer surface of the member Zero at both the centroidal axis and outer surface of the member Zero at the centroidal axis and maximum at the outer surface of the member Maximum at the centroidal axis and zero at the outer surface of the member ANSWER DOWNLOAD EXAMIANS APP
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