Machine Design For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to Static as well as dynamic load Completely reversed load Dynamic load Static load Static as well as dynamic load Completely reversed load Dynamic load Static load ANSWER DOWNLOAD EXAMIANS APP
Machine Design The objective of caulking in a riveted joint is to make the joint Leak-proof Free from stress Free from corrosion Stronger in tension Leak-proof Free from stress Free from corrosion Stronger in tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a connecting rod, it is considered like __________ for buckling about Y-axis. One end fixed and the other end hinged Both ends hinged One end fixed and the other end free Both ends fixed One end fixed and the other end hinged Both ends hinged One end fixed and the other end free Both ends fixed 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 t.τu π/4 × d².τu π/4 × d² × tτu πd.t.τu t.τu π/4 × d².τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by Equating tearing resistance of the plate to the shearing resistance of the rivets Equating shearing resistance to the crushing resistance of the rivets None of these Equating tearing resistance of the plate to the crushing resistance of the rivets Equating tearing resistance of the plate to the shearing resistance of the rivets Equating shearing resistance to the crushing resistance of the rivets None of these Equating tearing resistance of the plate to the crushing resistance of the rivets ANSWER DOWNLOAD EXAMIANS APP
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