Machine Design A screw will be self locking, if Friction angle is equal to helix angle Friction angle is more than helix angle Friction angle is less than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is more than helix angle Friction angle is less than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a full journal bearing, the angle of contact of the bearing with the journal is 180° 270° 360° 120° 180° 270° 360° 120° ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the Initial tension External load applied Initial tension or external load, whichever is greater Sum of the initial tension and external load applied Initial tension External load applied Initial tension or external load, whichever is greater Sum of the initial tension and external load applied ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads. Four times Double Same Three times Four times Double Same Three times ANSWER DOWNLOAD EXAMIANS APP
Machine Design For unequal width of butt straps, the thicknesses of butt straps are 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside 0.625 t for both the straps on the inside and outside 0.75 t for both the straps on the inside and outside 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside 0.75 t for narrow strap on the inside and 0.625 t for wide strap on the outside 0.625 t for both the straps on the inside and outside 0.75 t for both the straps on the inside and outside 0.75 t for wide strap on the inside and 0.625 t for narrow strap on the outside ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating force P (P < F) is applied to the lower plate, which in turn acts on the nut. The tension in the both after this is F + P P F.P F F + P P F.P F ANSWER DOWNLOAD EXAMIANS APP
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