Spring index is___________________?

Spring index is___________________?

A. ratio of coil diameter to wire diameter
B. load required to produce unit deflection
C. its capability of storing energy
D. indication of quality of spring
E. nothing

In hydrodynamic bearings_____________________?

In hydrodynamic bearings_____________________?

A. the oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease is used for lubrication
E. none of the above

In hydrostatic bearings ____________________?

In hydrostatic bearings ____________________?

A. the Oil film pressure is generated only by the rotation of the journal
B. the oil film is maintained by supplying oil under pressure
C. do not require external supply of lubricant
D. grease is used for lubrication
E. none of the above