单选题A diesel engine cranks properly during starting but immediately stallsWhich of the following systems is most likely at fault?（）AHydraulic startingBElectric startingCIgnitionDFuel
单选题
A diesel engine cranks properly during starting but immediately stallsWhich of the following systems is most likely at fault?（）
A
Hydraulic starting
B
Electric starting
C
Ignition
D
Fuel
参考解析
解析：
暂无解析
相关考题：
Cold weather starting of a diesel engine is more difficult than warm weather starting due toA.use of low viscosity oil in cold weatherB.increased moisture content of inlet air in cold weatherC.increased drag of pistons and bearings due to increased oil viscosityD.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
In an operating diesel engine, which of the following conditions is an indication of a leaking air starting valve?A.Noise coming from that air starting valveB.Continuous operation of the starting air compressorC.Zero air pressure in the air starting systemD.Overheated starting air pipe to the cylinder head
单选题The starting of a marine diesel engine is generally carried out with the assistance of （）.Acompressed airBelectricityChydraulic oilDcompressing air
单选题Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can be made easier by （）Aincreasing the quantity of starting airBincreasing the lube oil pressureCheating the engine fuel supplyDheating the engine jacket water
单选题Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an（）Aincrease in starting air pressureBincrease in lube oil viscosityCcompression expansion deviceDjacket water heater
单选题When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）Aintake strokeBcompression strokeCpower strokeDexhaust stroke
单选题Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.Aopen the bypass lineBcut in the lube oil coolerCpressurize the lube oil systemDtop off the expansion tank
单选题Diesel engine cylinder head test cocks are used to（）Acheck cylinder lubrication prior to starting engineBconnect exhaust gas analyzers to determine engine efficiencyCpressure test cylinder heads to check for leaksDremove moisture accumulations from cylinder prior to starting
单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）Aincreasing the quantity of starting airBincreasing the lube oil pressureCheating the engine fuel supplyDheating the engine coolant
单选题Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?（）AHolding the valve open for a long periodBIncreasing the starting air pressure usedCOpening the stating air valve quicklyDReducing the starting air valve size
单选题Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to（）Ahigher speed requiredBflywheel-effectClower starting temperaturesDhigher compression pressures
单选题Before starting any diesel or gasoline engine，which of the following must be checked? （）AOil levelBFlow of cooling waterCExhaust dischargeDAll of the above
单选题Cold weather starting of a diesel engine is more difficult than warm weather starting due to（）Ause of low viscosity oil in cold weatherBincreased moisture content of inlet air in cold weatherCincreased drag of pistons and bearings due to increased oil viscosityDhigher compression pressures reached due to smaller clearances existing in the engine during cold weather
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The is employed to warm up a large diesel engine before its starting（）Ahot airBhot boiler waterCcylinder waterDhot seawater
单选题Cold weather starting of a diesel engine may be made easier by（）Adecreasing the compression ratioBusing a special fuel having a high ignition temperatureCincreasing the starting air supplyDheating the jacket water
单选题A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must （）Aline up the engine fore restarting with light diesel oilBreposition the fuel injection camCchange the intake and exhaust valve cam positionsDplace the starting cam in the intermediate position
单选题Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to （）Atest the starting systemBremove condensation from the cylindersCcheck the compressionDcheck for proper lube oil pressure
单选题Maximum horsepower of a diesel engine is attained （）.Awhen the engine RPM is pulled down by overloadBat rated engine RPMCat 95 % of rated engine RPMDat 95 % of a properly adjusted governor RPM with the engine under full load
单选题A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）Ahas little or no internal frictionBhas a lower effective compression ratioCoperates with scavenge air under a positive pressureDoperates without energy absorbing intake and exhaust strokes
单选题How would the exhaust of a properly operating diesel engine appear?（）.ALight blue hazeBLight brown hazeCLight gray hazeDPerfectly clear
单选题Which of the following should always be checked prior to starting a diesel engine?（）AAir filtersBFuel oil strainersCCrank case oil levelDPyrometer readings
单选题When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）Aan obstruction in an cylinderBwater accumulation in some engine cylindersClow starting air pressureDlow scavenge air pressure
单选题In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?（）Anoise coming from that air starting valveBcontinuous operation of the starting air compressorCzero air pressure in the air starting systemDoverheated starting air pipe to the cylinder head
单选题The highest pressure in a diesel engine cylinder normally occurs （）.Aat TDCBbefore TDCCafter TDCDduring air starting
单选题The diesel engine must be started before it can run by it self For this purpose （） has to be used.Aa starting systemBthe starting airCa starting operationDA, B and C
单选题A six-cylinder, two-stroke/cycle diesel engine is fitted with a rotary distributing air starting systemThe speed of the rotating distributor disc is （）Aone-half engine speedBthe same as engine speedCtwice engine speedDfour times engine speed