Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.

Cylinder lubrication oil for low speed main propulsion diesel engines is admitte

In a trunk engine the cylinder lubrication is done by the oil mist thrown up by_

Most large, low-speed, main propulsion diesel engines use duplex lube oil strain

[单选题]The oil quantity for bearing lubrication should be applied in such an amount as to be sufficient to carry away the （） caused by the friction at the bearings.A . acidsB . additivesC . heatD . gear

[单选题]Mist detectors used on large low-speed main propulsion diesel engines monitor and check for the presence of （）.A . fuel oil vapor at the sludge tank ventB . unburned fuel vapors in the scavenge air receiverC . lube oil vapors in the crank caseD . lub

[单选题]Oil pressure in the lubrication system is （） the static sea water head to ensure that sea water （） the stem-tube.A . lower than；can lubricateB . lower than；can coolC . higher than；can enterD . higher than ；cannot enter

[单选题]Oil is supplied to the cylinder wall and （） by means of mechanical lubricators.A . the cylinder coverB . the piston ringsC . the piston crownD . the piston skirt

[单选题]In addition to lubricating, cylinder oil assists in forming a gas seal and contains （） which clean the cylinder liner.A . additivesB . waterC . greaseD . acid solutio

[单选题]In low - speed network ,it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the(71)between sending the notif

[单选题]The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is （）A . the same, whether at sea, or during maneuveringB . adjusted during each hour of operation while at constant RPMC . higher at sea