单选题On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?()AEngine is hard to startBEngine missesCSurges at governed RPMDCoolant temperature is too low

单选题
On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?()
A

Engine is hard to start

B

Engine misses

C

Surges at governed RPM

D

Coolant temperature is too low


参考解析

解析: 暂无解析

相关考题:

On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).A.a spindle lubricatorB.an oil jetC.internal splashingD.drilled passages in the crankshaft

单选题Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()AImpellerBCompressorCAfter-coolerDExhaust differ

单选题As a heat engine,() energy is the source of power by which the diesel engine can be operated.AelectricBheatCmechanicalDexhaust

单选题Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are ().Aoperated manually once an hourBoperated until the engine has startedCplaced into operation only at maximum loadDadjustable to meet lubrication requirements

单选题A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a ().Aslow-speed dieselBmedium-speed dieselChigh-speed dieselDconstant-speed diesel

单选题The diesel engine consumes considerably less fuel than the steam engine for equal output, () enables a motor-ship to load more cargo.AwhyBwhichCin whichDon which

单选题Which of the listed diesel engine systems is likely to create the problem of a cylinder regularly misfiring?()ALubricationBCoolingCFuelDElectric ignition

单选题Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?()AExhaust temperatureBLube oil levelCLube oil pressureDWater level in the expansion tank

单选题Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?()ACarbon dioxideBCarbon monoxideCCarbon trioxideDHydrogen sulfide

单选题Why a gearbox is needed in a ship driven by a medium-speed diesel engine?()ATo reduce the main engine speedBTo increase the main engine speedCTo govern the main engine speedDTo fix the propeller shaft

单选题If a diesel engine runs roughly, which of the systems listed is most likely to be at fault?()AFuelBLubricatingCCoolingDIgnition

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If over a period of weeks the air-box pressure of a turbo-charged, diesel engine, operating at full load, appears to be dropping off, the cause can be ().Aopen air-box drainsBloss of cooling water to the diffuserCgradual fouling of the air filtersDimproperly timed exhaust valves

单选题On a medium-speed main propulsion diesel engine, the crank-pin or crank journal bearings receive lubricating oil from ().Aa spindle lubricatorBan oil jetCinternal splashingDdrilled passages in the crankshaft

单选题Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle turbo-charged diesel engine?()AClogged air intake faltersBPiston blow-byCA defective after-coolerDFaulty exhaust valves

单选题Which of the combustion parameters listed is used in a diesel engine, but NOT related to the injection system?()AAtomizationBMeteringCEffective strokeDPenetration

单选题Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel engine?()AViscosityBSulfur contentCPour pointDCetane number

单选题When used with reversing reduction gears, medium-speed diesel engines should be bolted to their foundations with fitted bolts at the drive end and clearance(loosely fitted) bolts in other locations √This is done to ()Amaintain alignment when the ship’s hull is working in heavy seasBensure engine vibrations correspond to the natural frequency of the hullCpermit the engine to expand away from the driven equipment as the engine heats up and expandsDmaintain engine thrust bearing clearances

单选题Poor quality fuel being used in a turbocharged medium-speed, diesel engine could result in ()Ahard startingBexcessive fuel consumptionCloss of powerDall of the above

单选题Prior to starting most medium-speed propulsion diesel engines, which of the procedures listed should be observed?()AThe expansion tank should be topped offBThe thermostatic water regulating valves should be manually openedCThe fuel filters should be changedDThe engine should be turned over slowly with the indicator cocks open

单选题Lubricating oil systems for diesel engine journal bearings are usually lubricated by which of the following types of lubricating oil systems?()ASplashBGravityCPressureDBypass

单选题Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except()Aopen the indicator cocksBsupply some CYL Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)Cput the fuel handle in the “stop” positionDpump up the air bottle

单选题“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density(), drives the compressor directly()Aa modern diesel engine;a turbine wheelBa modem diesel engine;exhaust gasesCa compressor;an exhaust gas turbochargerDa compressor;a turbine wheel