单选题Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ().Aincreasing the volume of intake airBshutting off the fuel supplyCincreasing the engine back pressureDover-speeding the engine

单选题
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ().
A

increasing the volume of intake air

B

shutting off the fuel supply

C

increasing the engine back pressure

D

over-speeding the engine


参考解析

解析: 暂无解析

相关考题:

Power operated cranes used on a ship must not be powered by ______.A.diesel engineB.chargeable batteriesC.electric motorsD.gasoline engines

The fuel oil supply system to an automatic auxiliary boiler, will automatically shutdown if the boiler ______.A.steam demand is highB.salinity is highC.safety valve simmers(爆发)D.burner flame is extinguished

Before the seas get rough, it is a good safety practice to ______.A.secure loose gearB.move quickly about the shipC.increase lightingD.shutdown auxiliary equipment

The proper safety guidelines for handling any device specific consumables can be found in which of the following documentation?()A、Material Safety Data SheetsB、Installation GuidesC、Consumer ReportsD、Devices Parts Catalog

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Worn main bearing will cause the compression ratio of an auxiliary diesel engine to()AincreaseBdecreaseCremain the sameDincrease on compression decrease on expansion

单选题The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the () cycle.Atwo-strokeBfour-stokeClong-strokeDshort-stroke

单选题Which of the following is NOT true according to the passage?()ABoth the main steering gear and the auxiliary steering gear should be operatedBThe alarms fitted to the remote control system should be operatedCThe emergency generator compartment should be checkedDThe communication system between the bridge and the steering gear compartment should be operated

单选题High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by ().Aengine overloadBlow combustion temperatureCplugged fuel nozzle holesDexcessive compression pressure

单选题A diesel engine should not be operated at low loads for long periods of time because()Aheavy carbon deposits will buildup on the valves and in the exhaustBfuel dilution is increased at low loadCexhaust valves may be damagedDall of the above

单选题What harmful condition can result if a diesel engine is operated at very light loads for long periods of time?()Aincreased carbon buildupBburning of intake valvesCexcessive firing pressuresDincreased fuel consumption

单选题Excessive valve lash in an auxiliary diesel engine will cause the valves to open()Alater and close soonerBsooner and close laterCsooner and close soonerDlater and close later

单选题Which of the following actions should normally be taken during each watch when the auxiliary boilers is in operation?()Aclean the flame scanner photocell windowBInspect and clean all solenoid valvesClift the safety valves by handDInspect for oil or water leaks

单选题()does not belong to the mooring trial item.Agenerator sets running trialBshafting intensity trialCthe trail for pumps that working for MEDME safety devices trial

单选题Before the seas get rough, it is a good safety practice to ().Asecure loose gearBmove quickly about the shipCincrease lightingDshutdown auxiliary equipment

单选题The booster pump, which supplies diesel oil to() , should have a possibility of being powered by compressed air or by emergency power.Athe main enginesBthe auxiliary enginesCthe emergency generator engineDthe auxiliary engines and the main engine(s)

单选题In an auxiliary diesel engine, the reason for knurling the piston skirt is to()Aimprove skirt lubricationBallow for expansionCtransmit forces evenlyDimprove the piston seal

单选题If an auxiliary diesel engine frequently stalls, the trouble may be caused by ()Alow exhaust back pressureBair in the fuel systemCgasket blow-by or leakageDincorrect assembly of idler springs

单选题If the turbocharger failed on an auxiliary diesel engine, which of the following conditions would probably occur?()AFull power cannot be developedBThe exhaust will contain black smokeCComplete combustion will be impossibleDAll of the above

单选题If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an ()Acavitation erosion in the water jacketsBexcess corrosion inhibitor in the coolantCdirty jacket water coolerDdefective turbocharger

问答题Critics of the ban say cell phones are important safety devices for kids during an emergency.

单选题With reference to rules governing steering gear, which one of the following rules is incorrect? ()AIt is required that all ships are provided with two independent steering gear systems that is one main and one auxiliaryBThe auxiliary gear could be power operated in passenger shipsCThe auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speedDAll moving parts of the steering gear must be guarded against any possible damage

单选题An electrically driven automatically operating auxiliary blower is provided for slow speed and () of a low speed diesel engine.Amanoeuvring operationsBbad combustionCcoolingDmooring trial

单选题After a normal, or safety shutdown, automatic combustion control systems for an auxiliary boiler are designed to prevent the immediate refiring of a burner in order for the ().Afurnace to be re-purgedBelectric charge to buildup in the igniterCfuel pump to restartDdram level to stabilize