Machine Design The acme threads are usually found on Screw cutting lathes Railway carriage couplings Feed mechanism of machine tools Spindles of bench vices Screw cutting lathes Railway carriage couplings Feed mechanism of machine tools Spindles of bench vices ANSWER DOWNLOAD EXAMIANS APP
Machine Design For longitudinal joint in boilers, the type of joint used is Butt joint with double cover plate Any one of the above Butt joint with single cover plate Lap joint with one ring overlapping the other Butt joint with double cover plate Any one of the above Butt joint with single cover plate Lap joint with one ring overlapping the other ANSWER DOWNLOAD EXAMIANS APP
Machine Design The efficiency of a square threaded screw is maximum if the helix angle is equal to(Where φ = Angle of friction) 45° - φ 45° + φ/2 90° - φ 45° - φ/2 45° - φ 45° + φ/2 90° - φ 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In hydrodynamic bearings The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant Grease is used for lubrication The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Do not require external supply of lubricant Grease is used for lubrication ANSWER DOWNLOAD EXAMIANS APP
Machine Design The railway carriage couplings have Buttress threads Acme threads Knuckle threads Square threads Buttress threads Acme threads Knuckle threads Square threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design Surface endurance limit of gear material is dependent upon its Toughness Yield strength Elastic strength Brinell hardness number Toughness Yield strength Elastic strength Brinell hardness number ANSWER DOWNLOAD EXAMIANS APP
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