The greatest detrimental effect on idle electrical equipment, such as cargo pump motors, is the().
A、loss of residual magnetism
B、absorption of moisture in the insulation
C、insulation varnish flaking
D、dirt collecting on the windings
A、loss of residual magnetism
B、absorption of moisture in the insulation
C、insulation varnish flaking
D、dirt collecting on the windings
A、Overcoming sliding friction B、Overcoming rolling friction C、Overcoming fluid friction D、Overcoming oil wedge friction
A、at each frame B、amidships C、one-third the distance from the bow D、one-third the distance from the stern