Machine Design The lead angle of a worm is 22.5°. Its helix angle will be 22.5° 90° 45° 67.5° 22.5° 90° 45° 67.5° 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 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = eᶠα P1 / P2 = e–ᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To facilitate slipping of balls To maintain the balls at a fixed distance apart To reduce friction To prevent the lubricant from flowing out To facilitate slipping of balls To maintain the balls at a fixed distance apart To reduce friction To prevent the lubricant from flowing out ANSWER DOWNLOAD EXAMIANS APP
Machine Design A saddle key __________ power through frictional resistance only. Does not transmit Either A or B None of these Transmits Does not transmit Either A or B None of these Transmits ANSWER DOWNLOAD EXAMIANS APP
Machine Design A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called Elasticity Plasticity Ductility Malleability Elasticity Plasticity Ductility Malleability ANSWER DOWNLOAD EXAMIANS APP
Machine Design A universal coupling is used to connect two shafts Have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment Have lateral misalignment Whose axes intersect at a small angle Which are perfectly aligned Which are not in exact alignment ANSWER DOWNLOAD EXAMIANS APP
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