单选题Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the（）Acooling water leaving each cylinderBfuel oil entering the injectorCexhaust gases at various locationsDlube oil at the bearing supplies
单选题
Thermocouple pyrometers are used on large, main propulsion diesel engines to indicate the temperature of the（）
A
cooling water leaving each cylinder
B
fuel oil entering the injector
C
exhaust gases at various locations
D
lube oil at the bearing supplies
参考解析
解析：
暂无解析
相关考题：
The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.A.large conical springsB.compressed air pressureC.hydraulic pressureD.exhaust gas pressure
单选题The rate of cylinder lubricating oil metered to each cylinder of a large low-speed main propulsion diesel engine is （）Athe same, whether at sea, or during maneuveringBadjusted during each hour of operation while at constant RPMChigher at sea than while maneuveringDlower at sea than while maneuvering
单选题On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）Adial indicatorBoutside caliperCbridge gaugeDtram rod
单选题In large, low-speed, main propulsion diesel engine, position ring groove wear usually occurs at the（）Atop of the ring grooveBback of the ring grooveCbottom of the ring grooveDpiston ring end clearance
单选题While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?（）AManually trip the over-speed deviceBInterrupt the fuel flow to the engineCDisengage the safety interlockDSlide the camshaft to the neutral position
单选题Telescopic pipes to the piston of a large slow-speed main propulsion diesel engine are designed to prevent （）.Aexcessive crankcase pressureBexcessive lube oil temperatureCcontamination of the lube oil by waterDcontamination of the cooling water by lube oil
单选题The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by （）.Adirect action of cam shaftBcompressed air pressureChydraulic “push rods”Ddirect action of the main piston moving down
单选题The power developed by a large slow-speed main propulsion diesel engine is dependent upon the （）Aquantity of air it takes in and retains in the cylinders during a given time periodBproportion of trapped air that is utilized in the combustion processCthermodynamic efficiency of the engine cycleDall of the above
单选题In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the （）Afuel must be preheatedBintake air should be preheatedClube oil outlet temperature should be increased 20℃ above normalDnone of the above
单选题The （） engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.Afour-strokeBtwo-strokeCslow speedDreversible
单选题The （） engine is used for alternators and sometimes for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm.Afour-strokeBtwo-strokeCslow speedDreversible
单选题Following the failure of one turbocharger on a large, crosshead, main propulsion diesel engine, fitted with multiple turbochargers, which of the following actions should be taken prior to further operation of the engine? （）ABlank off the exhaust gas inlet to the damaged turbochargerBSecure cooling and lubrication to the damaged turbochargerCLock the rotor of the damaged turbochargerDAll of the above
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?（）AFlywheel inertiaBAdmission of starting airCThe way of the vesselDsecuring of fuel to the cylinders
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?（）ABed plateBColumnCEntablatureDTie rod
单选题Large, two-stroke/cycle, main propulsion, diesel engine cylinders can be successfully pressure charged during normal operation, by using the （）.Aexhaust gas temperature systemBexhaust load systemCconstant or pulse pressure systemDconstant volume system
单选题A large, low-speed, main propulsion diesel engine uses sea water to directly cool the （）.Acylinder headsBexhaust valvesCscavenging airDinjectors
单选题A large, low-speed, crosshead, main propulsion diesel engine using residual fuel oils must have a cylinder oil having a （）Alow TBN valueBhigh alkaline reserveClow flash pointDhigh pour point
单选题If it becomes necessary to cutout an individual cylinder of a large, low-speed, main propulsion diesel engine, the fuel to that cylinder should be secured and its （）Afuel pump should be removed and all connections blanked offBcylinder oil feed rate should be increased slightly above that used at normal sea speedCcylinder oil feed rate should be reducedDcylinder oil feed rate should be increased to the maximum flow capable of the metering pump
单选题The four-stroke engine is used for （） and sometimes for main propulsion with a gearbox to provide a propeller speed of between 90 to 120 rev/min.AalternatorBturbo-chargerCremote controllerDwindlass
单选题Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?（）AElectricBHydraulicCAirDAll of the above
单选题Cast iron pistons used in large propulsion diesel engines are constructed with （）Anot taper what so everBthe skirt being tapered and smaller than the crownCthe skirt being tapered and larger than the crownDthe crown being tapered and smaller than the skirt
单选题When the engine room is put in standby condition, the engineer in charge of the watch need not to（）Aensure all machinery which may be used during maneuvering is in readyBensure an adequate reserve of power is available for steering gear and other requirementsCkeep the main propulsion unit controls continuously attended when in the manual mode of operationDensure all machinery which may be used during maneuvering is running stably
单选题The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.Alarge conical springsBcompressed air pressureChydraulic pressureDexhaust gas pressure
单选题In some modern large diesel engines, which of the following is used as the support for the main bearings?（）ABedplateBBlockCBaseDSump
单选题Most large, low-speed, main propulsion diesel engines use duplex lube oil strainer to （）Adecrease the time required between cleaningsBremoves all large and small foreign objectsCensure a positive flow of oil at all timesDensure that all lube oil has been treated twice