Machine Design Screws used for power transmission should have Very fine threads High efficiency Strong teeth Low efficiency Very fine threads High efficiency Strong teeth Low efficiency ANSWER DOWNLOAD EXAMIANS APP
Machine Design Three different weights fall from a certain height under vacuum. They will take Times proportional to weight to reach earth Same time to reach earth None of these Times inversely proportional to weight to reach earth Times proportional to weight to reach earth Same time to reach earth None of these Times inversely proportional to weight to reach earth ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cross-section of the arm of a bell crank lever is Any one of these Elliptical Rectangular I-section Any one of these Elliptical Rectangular I-section ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be 2 times more Same in both cases 4 times more 3 times more 2 times more Same in both cases 4 times more 3 times more 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 = 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 P1 / P2 = eᶠα ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to Decrease the key length Increase the key depth Increase the key width Increase the key length Decrease the key length Increase the key depth Increase the key width Increase the key length ANSWER DOWNLOAD EXAMIANS APP
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