Machine Design In a hydrodynamic lubricated bearing There is a thin film of lubricant between the journal and the bearing There is no lubricant between the journal and the bearing There is a thick film of lubricant between the journal and the bearing The lubricant is forced between the journal and the bearing, by external pressure There is a thin film of lubricant between the journal and the bearing There is no lubricant between the journal and the bearing There is a thick film of lubricant between the journal and the bearing The lubricant is forced between the journal and the bearing, by external pressure ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in cyclic loading is Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Equally serious in both types of materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is 4 kN-m 1 kN-m 3 kN-m 2 kN-m 4 kN-m 1 kN-m 3 kN-m 2 kN-m ANSWER DOWNLOAD EXAMIANS APP
Machine Design A closely coiled helical spring is acted upon by an axial force. The maximum shear stress developed in the spring is τ. The half of the length of the spring if cut off and the remaining spring is acted upon by the same axial force. The maximum shear stress in the spring in new condition will be 4 τ 2 τ τ/2 τ 4 τ 2 τ τ/2 τ ANSWER DOWNLOAD EXAMIANS APP
Machine Design A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be (6V/ π)2 (6V/ π)1/2 (6V/ π)3 (6V/ π)1/3 (6V/ π)2 (6V/ π)1/2 (6V/ π)3 (6V/ π)1/3 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 0.75/ (0.75 + √v) 3/ (3 + v) 6/ (6 + v) 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 3/ (3 + v) 6/ (6 + v) 4.5/ (4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
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