Machine Design The helix angle for double helical gears may be made up to 60° 45° 75° 90° 60° 45° 75° 90° ANSWER DOWNLOAD EXAMIANS APP
Machine Design The minimum number of teeth on the pinion which will mesh with any gear without interference for 20° full depth involute teeth will be 12 14 24 18 12 14 24 18 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if the Friction angle is more than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is more than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is less than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design A hot short metal is Brittle under all conditions Brittle when hot Brittle when cold Ductile at high temperature Brittle under all conditions Brittle when hot Brittle when cold Ductile at high temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of belt tensions (p1/p2) considering centrifugal force in flat belt is given by Where m = mass of belt per meter (kg/m) v = belt velocity (m/s) f = coefficient of friction a = angle of wrap (radians) P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design For longitudinal joint in boilers, the type of joint used is Butt joint with double cover plate Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other Butt joint with double cover plate Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other ANSWER DOWNLOAD EXAMIANS APP
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