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) = eᶠα (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 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 3 2.5 3.5 2.8 3 2.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The included angle for the British standard whitworth thread is 55° 29° 47.5° 60° 55° 29° 47.5° 60° ANSWER DOWNLOAD EXAMIANS APP
Machine Design The endurance limit for a mirror polished material will be __________ as compared to unpolished material. Less More None of these Same Less More None of these Same ANSWER DOWNLOAD EXAMIANS APP
Machine Design In cross or regular lay ropes Direction of twist of wires in strands is opposite to the direction of twist of strands Wires are not twisted Direction of twist of wires and strands are same Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires in strands is opposite to the direction of twist of strands Wires are not twisted Direction of twist of wires and strands are same Wires in two adjacent strands are twisted in opposite direction ANSWER DOWNLOAD EXAMIANS APP
Machine Design A spring is used to Apply forces Store energy All of these Measure forces Apply forces Store energy All of these Measure forces ANSWER DOWNLOAD EXAMIANS APP
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