Machine Design In hydrodynamic bearings The oil film is maintained by supplying oil under pressure Grease is used for lubrication Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Grease is used for lubrication Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will Move towards right of the bearing making the metal to metal contact Move towards right of the bearing making no metal to metal contact Have contact at the bottom most of the bearing Move towards left of the bearing making metal to metal contact Move towards right of the bearing making the metal to metal contact Move towards right of the bearing making no metal to metal contact Have contact at the bottom most of the bearing Move towards left of the bearing making metal to metal contact ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if its efficiency is More than 50% Equal to 50% None of these Less than 50% More than 50% Equal to 50% None of these Less than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design Ball bearing type screws are found in following application Steering mechanism Aeroplane engines Screw jack Crane Steering mechanism Aeroplane engines Screw jack Crane ANSWER DOWNLOAD EXAMIANS APP
Machine Design A chain drive transmits __________ power as compared to belt drive. Less More Same None of these Less More Same None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to Diameter of bolt 1.25 × diameter of bolt 0.75 × diameter of bolt 1.5 × diameter of bolt Diameter of bolt 1.25 × diameter of bolt 0.75 × diameter of bolt 1.5 × diameter of bolt ANSWER DOWNLOAD EXAMIANS APP
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