Machine Design A screw will be self locking, if Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle Friction angle is equal to helix angle Efficiency of screw is 100% Friction angle is more than helix angle Friction angle is less than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by Equating shearing resistance to the crushing resistance of the rivets None of these Equating tearing resistance of the plate to the shearing resistance of the rivets Equating tearing resistance of the plate to the crushing resistance of the rivets Equating shearing resistance to the crushing resistance of the rivets None of these Equating tearing resistance of the plate to the shearing resistance of the rivets Equating tearing resistance of the plate to the crushing resistance of the rivets ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a journal bearing, the load on the bearing is __________ to the axis of the journal. None of these Both A and B Parallel Perpendicular None of these Both A and B Parallel Perpendicular ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a hydrodynamic lubricated bearing There is no lubricant between the journal and the bearing There is a thin film of 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 no lubricant between the journal and the bearing There is a thin film of 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 While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as One end fixed and the other end hinged One end fixed and the other end free Both the ends hinged Both the ends fixed One end fixed and the other end hinged One end fixed and the other end free Both the ends hinged Both the ends fixed 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 Approaches yield point Is just sufficient to hold parts together Is 50% of yield point Is about yield point divided by safety factor Approaches yield point Is just sufficient to hold parts together Is 50% of yield point ANSWER DOWNLOAD EXAMIANS APP
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