In order to start a large, low-speed, main propulsion diesel

第1题

单选题Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the（）A cooling water leaving each cylinderB fuel oil entering the injectorC exhaust gases at various locationsD lube oil at the bearing supplies

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第2题

单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）A increasing the quantity of starting airB increasing the lube oil pressureC heating the engine fuel supplyD heating the engine coolant

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第3题

单选题The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）A quantity of air it takes in and retains in the cylinders during a given time periodB proportion of trapped air that is utilized in the combustion processC thermodynamic efficiency of the engine cycleD all of the above

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第4题

单选题Which of the conditions listed could cause the cylinder relief valves on a large, low-speed, propulsion diesel engine to lift?（）A Plugged injector nozzlesB Excessive fuel injectionC Very late injection timingD Incorrect crankshaft clearance

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第5题

单选题When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）A starting air pressureB scavenge air pressureC over-speed tripD banjo oiler line

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第6题

单选题During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）A Flywheel inertiaB Admission of starting airC The way of the vesselD securing of fuel to the cylinders

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第7题

单选题In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?（）A Bed plateB ColumnC EntablatureD Tie rod

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