当前位置： 找题吧 >  船舶动力装置 海船船员
[单选题]

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

A . the power stroke

B . the compression stroke

C . low load operation only

D . periods of standby

参考答案与解析：

相关试题

The oil quantity for bearing lubrication

[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

  • 查看答案

    • Mist detectors used on large low-speed m

    [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

  • 查看答案

    • Oil pressure in the lubrication system i

    [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

  • 查看答案

    • Oil is supplied to the cylinder wall and

    [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

  • 查看答案

    • In addition to lubricating, cylinder oil

    [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

  • 查看答案

    • In low £­ speed network ,it is usually a

    [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

  • 查看答案

    • In some designs the cylinder oil is time

    [单选题]In some designs the cylinder oil is timed so that the oil injects only on the （）.A . piston crownB . piston grooveC . piston skirtD . piston ring belt

  • 查看答案

    • The rate of cylinder lubricating oil met

    [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

  • 查看答案

    • In low£­speed network,it is usually ade

    [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 notificat

  • 查看答案

    • In low£­speed network, it is usually ade

    [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 notificat

  • 查看答案

    • Cylinder lubrication oil for low speed m