单选题In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）A build up the piston crown by metal sprayingB build up the cylinder head by metal sprayingC

题目

单选题

In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）

build up the piston crown by metal spraying

build up the cylinder head by metal spraying

insert shims between the crankpin bearing box and the connecting rod foot

install a thinner head gasket

更多“In a large, low-speed diesel engine the clearance between th”相关问题

第1题

单选题As to the bearing, of the following, which statement is not true?（）A ff overheat is found, the engine must be stopped for inspectionB Much heat of the crankcase door indicates that the bearing is overheatedC If bearing clearance is too large, knocking will be heard in the crankcaseD If bearing clearance is too large or too small, the white metal may be melted

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第2题

单选题The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.A direct action of cam shaftB compressed air pressureC hydraulic “push rods”D direct action of the main piston moving down

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第3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4题

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 lube oil vapors in the engine room

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第5题

单选题Which of the following procedures should be carried out when a large, low-speed, diesel engine is operated with one cylinder secured?（）A Lubrication to the defective cylinder should be increasedB Cooling water temperature to the engine should be increasedC Only the turbocharger speed should be reducedD Engine speed should be reduced

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第6题

单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）A fuel must be preheatedB intake air should be preheatedC lube oil outlet temperature should be increased 20℃ above normalD none of the above

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第7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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海船船员考试

单选题In a large, low-speed diesel engine the clearance between the piston crown and cylinder head is found to be excessiveIn order to correct for this, you should（）A build up the piston crown by metal sprayingB build up the cylinder head by metal sprayingC

题目

更多“In a large, low-speed diesel engine the clearance between th”相关问题

第1题

第2题

第3题

第4题

第5题

第6题

第7题

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