Machine Design The anti-friction bearings All of these Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads Have high initial cost All of these Have low starting and low running friction at moderate speeds Can carry both radial and thrust loads Have high initial cost ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.8 2.5 3.5 3.0 2.8 2.5 3.5 3.0 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 2136 N-m 2000 N-m 2050 N-m 2100 N-m 2136 N-m 2000 N-m 2050 N-m 2100 N-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design The circumferential and longitudinal strains in a cylindrical boiler under internal steam pressure are εc and εl respectively. The change in volume of the boiler cylinder per unit volume will be εc + 2εl εc² + εl 2εc + εl εc + εl² εc + 2εl εc² + εl 2εc + εl εc + εl² ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Indian standards, total numbers of fundamental deviations are 15 25 10 20 15 25 10 20 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 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα (P1 - mv²)/ (P2 - mv²) = e–ᶠα P1 / P2 = e–ᶠα P1 / P2 = eᶠα (P1 - mv²)/ (P2 - mv²) = eᶠα ANSWER DOWNLOAD EXAMIANS APP
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