Oil is supplied to the cylinder wall and （） by means of mechanical lubricators.

[单选题]Cylinder wall temperature, fuel oil supplier, and oil passage （）.A . are interdependentB . are not interdependentC . have nothing to do with each otherD . are independent

[单选题]Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.A . internal crankshaft passagesB . immersion in oilC . splash lubricationD . injection lubricatio

[单选题]The pistons are cooled by oil supplied from the forced （） system.A . fresh waterB . sea waterC . lubricationD . fuel 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

[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

[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

[单选题]Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.A . the power strokeB . the compression strokeC . low load operation onlyD . periods of standby

[单选题]________is supplied with electricity by main switchboard directly not through sub-board on boardA．Deck machineryB．Little power loadC．Some important load machineryD．Stationary submersible pump

[单选题]The cylinder head, cylinder liner and （） form the combustion chamber.A . frameB . pistonC . crankcaseD . explosion plate

[单选题]（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.A . The fuel oilB . The lube oilC . The sea waterD . The fresh water