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) μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 2μ sinθ/(θ + sinθ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the levers of __________ type, the mechanical advantage is less than one. Second None of these First Third Second None of these First Third ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is 2100 N-m 2136 N-m 2000 N-m 2050 N-m 2100 N-m 2136 N-m 2000 N-m 2050 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design The expression 0.175 - 0.841/T is the Lewis form factor for 14½° composite and full depth involute system 20° stub system None of these 20° full depth involute system 14½° composite and full depth involute system 20° stub system None of these 20° full depth involute system ANSWER DOWNLOAD EXAMIANS APP
Machine Design Coaxing is the procedure of increasing Fatigue limit by over-stressing the metal by successively increasing loadings Metal hardness by surface treatment Metal resistance to corrosion by coating Metal strength by cycling Fatigue limit by over-stressing the metal by successively increasing loadings Metal hardness by surface treatment Metal resistance to corrosion by coating Metal strength by cycling ANSWER DOWNLOAD EXAMIANS APP
Machine Design The contact ratio is the ratio of Length of arc of recess to the circular pitch Length of arc of approach to the circular pitch Length of arc of contact to the circular pitch Length of path of contact to the circular pitch Length of arc of recess to the circular pitch Length of arc of approach to the circular pitch Length of arc of contact to the circular pitch Length of path of contact to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
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