Gasoline fuel tank vents should terminate ______．A.In the engine compartmentB.In the fuel tank spaceC.Above or outside the hullD.At the most convenient location
Gasoline fuel tank vents should terminate ______．
A.In the engine compartment
B.In the fuel tank space
C.Above or outside the hull
D.At the most convenient location
相关考题：
If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at theA.fuel line connections to the cylinder injection valvesB.gasket surfaces of the fuel oil filtersC.discharge fittings of the fuel injector pumpsD.suction side of the fuel oil transfer pump
A safe fuel system must ______.A.prevent engine overheatingB.have proper air/gasoline fuel mixture ratioC.be liquid- and vapor-tightD.supply sufficient air to the intake manifold
What is NOT a requirement for the preparation of used，gasoline-propelled cars if they are to be carried as ordinary cargo and not as hazardous cargo ________．A.The engine must be run until it dies from lack of fuelB.The fuel tank must be inerted with CO2C.The ignition key may not be in the ignitionD.The vehicle must be inspected for fuel leaks
The tops of vents from gasoline tanks should terminate ______．A.in open airB.inside cabinsC.in machinery spaceD.underwater
单选题If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.Aclose the static leg filling valveBclose the overflow tank falling valveCreduce the fuel oil pumping rateDstop the fuel oil pumping operation
单选题Before starting a diesel engine, you should always（）Acheck the pyrometer readingsBcheck the crankcase oil levelCcheck the fuel oil strainersDclean the fuel system
单选题A fuel line breaks, sprays fuel on the hot exhaust manifold, and catches fire. Your first action should be to（）.ABatten down the engine roomBstart the fire pumpCapply carbon dioxide to the fireDshut off the fuel supply
单选题Gasoline tanks should be filled（）.Ato the top to expel all vapors from the tanksBto the top so the operator is certain how much fuel he has aboardCwith only sufficient fuel for the planned trip so excess gasoline is not carriedDto near the top with some space allowed for gasoline expansion
单选题While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should （）Areduce the fuel feeding of main engine of inner propellerBreduce the fuel feeding of main engine of outer propellerCfirstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propellerDreduce fuel feeding of two engines at the same time
单选题The tops of vents from gasoline tanks should terminate（）.Ain open airBinside cabinsCin machinery spaceDunderwater
单选题Fuel oil tank vents are fitted with a screen which will stop（）.Aoil from flowing out of the tank ventBair from entering the tank ventCvapors from leaving the tank ventDflames on deck from entering the tank vent
单选题If a tow-stroke/diesel engine is over-speeding due to leakage of lube oil into the cylinders, what should you do to stop the engine?（）AMove the fuel control mechanism to the no fuel positionBBlock the fuel supply by closing the master fuel valveCShut off the fuel supply and block the flow of intake airDRelieve all pressure in the fuel system
单选题Your vessel has run aground and upon taking fuel oil tank soundings, you find that a fuel tank level has increasedYou therefore should suspect （）.Acondensation in the fuel tankBa crack in the hull portion of the fuel tankCa load of bad fuelDcontamination from the saltwater flushing system
单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.Afilter to remove the fuel oilBuse the settler to remove the fuel oilCremove the fuel oil by centrifugingDdrain and then renew the lube oil supply
单选题Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）ACommence draining that tank as quickly as possibleBSeal off all vents to that tankCActivate the CO2 system to that tankDShut off the steam heating coils
单选题To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.Areduce the engine driven fuel pump outlet pressureBretard the fuel injector timing to reduce powerCincrease the fuel rack settingDreduce the load on the engine
单选题A safe fuel system must（）.Aprevent engine overheatingBhave proper air/gasoline fuel mixture ratioCbe liquid- and vapor-tightDsupply sufficient air to the intake manifold
单选题Where should the tops of vents from gasoline tanks terminate?（）.AIn open airBInside cabins near the overheadCIn the machinery space near the engine air intakeDUnderwater
单选题Permitting a diesel engine fuel oil day tank to run dry can cause （）Aoverheated injection pumpsBwater condensation in the cylindersCfuel dilution of the lube oilDair in the fuel system
单选题When fueling has been completed（）.Athe fuel tank fill pipe should be left open to allow vapors to vent from the tankBthe engine should be started immediately to prevent vapor lock in the fuel lineCall hatches should be opened and all compartments should be ventilatedDopen the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
单选题Gasoline fuel tank vents should terminate（）.Ain the engine compartmentBin the fuel tank spaceCabove or outside the hullDat the most convenient location
单选题If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the （）Afuel line connections to cylinder injection valvesBgasket surfaces of the fuel oil filtersCdischarge fitting of the fuel injector pumpsDsuction side of the fuel oil tran
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When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）Aincrease the starting air pressureBuse a higher than normal cranking speedCincrease the fuel injection pressureDuse a fuel having a lower ignition temperature
单选题In fighting a fire in a fuel tank, the FIRST action you should attempt is to （）.Asecure all sources of fresh air to the tankBbegin transferring the fuel to other tanksCtop off the tank to force out all vaporsDstation someone at the fixed CO2 release controls
单选题A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.Aas much fuel asBless fuel thanCless fuel asDmore fuel than
单选题To find the cause of a gasoline engine’s failure to start，you should（）.ABreak the joint in the fuel line at the engine and let the gas run in the bilgesBDisconnect the wires at the spark plugs and make the spark jump the gapCPrime the engine with ether through spark plug openingsDVentilate the space，then check the battery，spark plugs，carburetor，and fuel line