When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil ().
A、viscosity will decrease
B、volume will increase
C、volume will decrease
D、pour point will be reduced
A、viscosity will decrease
B、volume will increase
C、volume will decrease
D、pour point will be reduced
A、maintain higher than normal jacket water temperature B、change the lube oil more frequently than normal C、maintain a higher air-box temperature than normal D、maintain a higher air-box pressure than normal
A、caused by retarded injection timing B、caused by a mechanical defect in one cylinder C、caused by high fuel injection pressures D、normal for these conditions
A、Excessive fuel B、Higher than normal temperatures for star up C、Longer starting periods D、Higher than normal lube oil pressure
A、has continuously for a long period B、suction pressure is below normal C、oil level is below normal D、starts after a long idle period
A、above normal with a below normal exhaust temperature B、above normal with a normal exhaust temperature C、below normal with a normal exhaust temperature D、below normal with an above normal exhaust temperature
A、Every three minutes. B、When a log switch occurs. C、When forces by an administrator. D、When a tablespace is taken offline normal. E、When the redo buffer is one-third full.