Machine Design In hydrostatic bearings Grease is used for lubrication The Oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure Grease is used for lubrication The Oil film pressure is generated only by the rotation of the journal Do not require external supply of lubricant The oil film is maintained by supplying oil under pressure ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a metal or alloy is cold worked, None of these Its hardness and strength increases Both (A) and (B) It is worked below recrystallization temperature None of these Its hardness and strength increases Both (A) and (B) It is worked below recrystallization temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of driving tensions in V-belt drives is __________ flat belt drives. sin α times less than cosec α times more than sin α times more than Equal to sin α times less than cosec α times more than sin α times more than Equal to ANSWER DOWNLOAD EXAMIANS APP
Machine Design The largest diameter of an external or internal screw thread is known as Minor diameter Pitch diameter None of these Major diameter Minor diameter Pitch diameter None of these Major diameter ANSWER DOWNLOAD EXAMIANS APP
Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension) ⅟₂× (P1 + P2) [⅟₂ × (P1 + P2)] + Pc [(√P1 + √P2)/2]² P1 + P2 ⅟₂× (P1 + P2) [⅟₂ × (P1 + P2)] + Pc [(√P1 + √P2)/2]² P1 + P2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is less than helix angle Friction angle is equal to helix angle Friction angle is more than helix angle Efficiency of screw is 100% ANSWER DOWNLOAD EXAMIANS APP
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