Machine Design The railway carriage couplings have Acme threads Buttress threads Square threads Knuckle threads Acme threads Buttress threads Square threads Knuckle threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design When an open coiled helical compression spring is subjected to an axial compressive load, the maximum shear stress induced in the wire is (where D = Mean diameter of the spring coil, d = Diameter of the spring wire, K = Wahl's stress factor, and W = Axial compressive load on the spring) (WD/ πd3) × K (4WD/ πd3) × K (2WD/ πd3) × K (8WD/ πd3) × K (WD/ πd3) × K (4WD/ πd3) × K (2WD/ πd3) × K (8WD/ πd3) × K 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 3.5 3.0 2.5 2.8 3.5 3.0 2.5 2.8 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 or external load, whichever is greater Initial tension External load applied Sum of the initial tension and external load applied Initial tension or external load, whichever is greater Initial tension External load applied Sum of the initial tension and external load applied ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bearing characteristic number in a hydrodynamic bearing depends upon Length, width and speed Viscosity, speed and bearing pressure Viscosity, speed and load Length, width and load Length, width and speed Viscosity, speed and bearing pressure Viscosity, speed and load Length, width and load ANSWER DOWNLOAD EXAMIANS APP
Machine Design The contact ratio for gears is None of these Less than one Zero Greater than one None of these Less than one Zero Greater than one ANSWER DOWNLOAD EXAMIANS APP
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