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) 4μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be (6V/ π)1/3 (6V/ π)2 (6V/ π)3 (6V/ π)1/2 (6V/ π)1/3 (6V/ π)2 (6V/ π)3 (6V/ π)1/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Becomes minimum at an optimum speed and then increases with further increase in speed Is minimum at zero speed and increases monotonically with increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Is minimum at zero speed and increases monotonically with increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ultimate strength of steel in tension in comparison to shear is in the ratio of 0.085416666666667 0.12638888888889 0.084027777777778 0.042361111111111 0.085416666666667 0.12638888888889 0.084027777777778 0.042361111111111 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The crest diameter of a screw thread is same as Pitch diameter Core diameter Major diameter Minor diameter Pitch diameter Core diameter Major diameter Minor diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design Three different weights fall from a certain height under vacuum. They will take None of these Times inversely proportional to weight to reach earth Same time to reach earth Times proportional to weight to reach earth None of these Times inversely proportional to weight to reach earth Same time to reach earth Times proportional to weight to reach earth ANSWER DOWNLOAD EXAMIANS APP
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