单项选择题

The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）

A.the rotate speed fluctuation
B.the ventilation tube clogged
C.the main engine accelerate so fast
D.stormy waves

相关考题

The tailshaft sealing arrangement found a little lube o...

单项选择题The tailshaft sealing arrangement found a little lube oil leaky and caused a lot of seawater into the bearing, the step should be taken as a makeshift is（）

A.dropping lube oil for lubrication, reducing the pollution to the sea
B.setting a temporary gravity oil tank and enhanced the position properly
C.lubricating with the used lube oil
D.lubricating with the fresh water and navigation in a lower speed

When the vessel shafting are installed, the slightly in...

单项选择题When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by（）

A.adjusting the position of the intermediate bearing
B.changing the position of the main engine installation
C.adjusting the center line of the propeller
D.changing the position of the thrust block

Setting a sealing equipment astern on the tailshaft can...

单项选择题Setting a sealing equipment astern on the tailshaft can’t （）

A.prevent the seawater from intergrating
B.prevent the lube oil from running out of the outside aboard
C.strengthen the intencity of the sterntube
D.prevent the mud and sand from entering the lube oil system

船舶电气与船舶安全

The bearing of tailshaft sealing equipment, which adopting the oil nature circulation is hot, the reason is（）