Machine Design Ball bearing type screws are found in following application Crane Steering mechanism Screw jack Aeroplane engines Crane Steering mechanism Screw jack Aeroplane engines ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which one of the following loading is considered for the design of axles? Combined bending moment and twisting moments Twisting moment only Combined action of bending moment, twisting moment and axial thrust Bending moment only Combined bending moment and twisting moments Twisting moment only Combined action of bending moment, twisting moment and axial thrust Bending moment only 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
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 3.0 2.8 2.5 3.5 3.0 2.8 2.5 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up so that tightening stress Is about yield point divided by safety factor Is 50% of yield point Is just sufficient to hold parts together Approaches yield point Is about yield point divided by safety factor Is 50% of yield point Is just sufficient to hold parts together Approaches yield point ANSWER DOWNLOAD EXAMIANS APP
Machine Design The expansion joint is mostly used for pipes which carry steam at __________ pressures. None of these Medium Low High None of these Medium Low High ANSWER DOWNLOAD EXAMIANS APP
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