Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Is maximum at zero speed and decreases monotonically with increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Is maximum at zero speed and decreases monotonically with increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be 63 to 70% 80 to 90% 45 to 60% 70 to 83% 63 to 70% 80 to 90% 45 to 60% 70 to 83% ANSWER DOWNLOAD EXAMIANS APP
Machine Design In case of pressure vessels having closed ends, the fluid pressure induces Circumferential stress Shear stress Longitudinal stress None of these Circumferential stress Shear stress Longitudinal stress None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The sleeve or muff coupling is designed as a Hollow shaft Solid shaft Thick cylinder Dun cylinder Hollow shaft Solid shaft Thick cylinder Dun cylinder ANSWER DOWNLOAD EXAMIANS APP
Machine Design The centre distance between two meshing involute gears is equal to Sum of base circle radii/cosφ Difference of pitch circle radii/cosφ Sum of pitch circle radii/cosφ Difference of base circle radii/cosφ Sum of base circle radii/cosφ Difference of pitch circle radii/cosφ Sum of pitch circle radii/cosφ Difference of base circle radii/cosφ ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a multiple V-belt drive, if one of the belts break, then The broken belt need not to be replaced The broken belt and the belt on either side of it, is replaced Only the broken belt is replaced The entire set of belts is replaced The broken belt need not to be replaced The broken belt and the belt on either side of it, is replaced Only the broken belt is replaced The entire set of belts is replaced ANSWER DOWNLOAD EXAMIANS APP
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