Machine Design In hydrodynamic bearings Grease is used for lubrication Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal Grease is used for lubrication Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure The oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Is minimum at zero speed and increases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed Is minimum at zero speed and increases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is maximum at zero speed and decreases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for Reducing stress concentration Safety Fullering and caulking Ease of manufacture Reducing stress concentration Safety Fullering and caulking Ease of manufacture ANSWER DOWNLOAD EXAMIANS APP
Machine Design The form factor of a helical gear __________ with the increase in the helix angle. Remains constant None of these Increases Decreases Remains constant None of these Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Machine Design Taper on the cotter and slot is provided On both the sides On none of the sides May be provided anywhere On one side only On both the sides On none of the sides May be provided anywhere On one side only ANSWER DOWNLOAD EXAMIANS APP
Machine Design A transmission shaft includes All of these Counter shaft Line shaft Over head shaft All of these Counter shaft Line shaft Over head shaft ANSWER DOWNLOAD EXAMIANS APP
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