Machine Design A feather key is generally Tight in shaft and loose in hub Loose in shaft and tight in hub Tight in both shaft and hub Loose in both shaft and hub Tight in shaft and loose in hub Loose in shaft and tight in hub Tight in both shaft and hub Loose in both shaft and hub ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is Bending stress only A combination of torsional shear stress and bending Direct shear stress only A combination of bending stress and direct shear stress Bending stress only A combination of torsional shear stress and bending Direct shear stress only A combination of bending stress and direct shear stress 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 = 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 P1 / P2 = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 3/ (3 + v) 6/ (6 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 3/ (3 + v) 6/ (6 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In second type of levers, None of these Load is in between the fulcrum and effort Effort is in between the fulcrum and load Fulcrum is in between the load and effort None of these Load is in between the fulcrum and effort Effort is in between the fulcrum and load Fulcrum is in between the load and effort ANSWER DOWNLOAD EXAMIANS APP
Machine Design The contact ratio is the ratio of Length of arc of approach to the circular pitch Length of arc of recess to the circular pitch Length of path of contact to the circular pitch Length of arc of contact to the circular pitch Length of arc of approach to the circular pitch Length of arc of recess to the circular pitch Length of path of contact to the circular pitch Length of arc of contact to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
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