Machine Design In hydrodynamic 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 The stress in the bar when the load is applied suddenly is __________ as compared to the stress induced due to gradually applied loads. Four times Three times Double Same Four times Three times Double Same ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct, for two shafts connected in parallel? Angle of twist of each shaft is the same Torsional stiffness of each shaft is the same Shear stress in each shaft is the same Torque in each shaft is the same Angle of twist of each shaft is the same Torsional stiffness of each shaft is the same Shear stress in each shaft is the same Torque in each shaft is the same ANSWER DOWNLOAD EXAMIANS APP
Machine Design The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub) d/8 d/6 d/2 d/4 d/8 d/6 d/2 d/4 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following material has the maximum ductility? Zinc Mild steel Aluminium Copper Zinc Mild steel Aluminium Copper ANSWER DOWNLOAD EXAMIANS APP
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