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Diesel fuel的中文含义是（）。
- A、汽油
- B、柴油
- C、煤油
- D、机油
参考答案
更多 “Diesel fuel的中文含义是（）。A、汽油B、柴油C、煤油D、机油” 相关考题
考题
_______can be a direct cause of faulty operation of diesel engine fuel injection nozzles.A.Excessive fuel nozzle holder coolingB.Sediment in the fuel supplyC.Distortion of the fuel spray patternD.Improper atomization of the fuel
考题
When fuel is injected late into a diesel engine cylinder_______.A.the exhaust will be clearB.fuel consumption will be lowC.all the fuel will be burned at top dead centerD.fuel consumption will be high
考题
What is an advantage of diesel over steam turbine propulsion ________．A.Less fuel consumption per SHPB.Diesel fuel costs less than bunker C or its equivalentC.Less routine maintenance requiredD.Less weight per SHP
考题
单选题Problems with the diesel engine fuel injection pump are usually caused by（）A
improper adjustmentB
contaminated fuelC
kinked fuel linesD
excessive engine vibration
考题
单选题Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）A
increasing the quantity of starting airB
increasing the lube oil pressureC
heating the engine fuel supplyD
heating the engine coolant
考题
单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
filter to remove the fuel oilB
use the settler to remove the fuel oilC
remove the fuel oil by centrifugingD
drain and then renew the lube oil supply
考题
单选题Duty officer informs us that the vessel is out of harbor and in “Full Ahead”We are going to run （）.A
diesel oil instead of fuel oilB
fuel oil instead of diesel oilC
diesel oil instead fuel oilD
fuel oil instead diesel oil
考题
单选题Which of the following conditions could be a cause of excessive fuel dilution of diesel engine lube oil?（）A
Leaking fuel injectorsB
Lower than normal compressionC
Delayed fuel injectionD
All of the above are correct
考题
单选题Injection lag in a diesel engine may be caused by（）A
a higher cetane number of fuel oilB
the diesel fuel used having a high viscosityC
mechanical rigidity in the lube pump mechanismD
a decrease rigidity in the fuel pump delivery pressure
考题
单选题The purpose of the delivery check valve used in a diesel fuel injection jerk pump is to （）.A
assist in a quick cutoff of fuel injectionB
allow oil backflow from the injector to the helixC
reduce fuel oil pressure between injection strokesD
meter the quantity of fuel delivered
考题
单选题Significant retardation of a diesel engine fuel injection timing will result in （）A
smoother engine operationB
advanced fuel ignitionC
increased fuel economyD
reduced engine power
考题
单选题Faulty operation of diesel engine fuel injection nozzles can be a direct cause of（）.A
excessive fuel nozzle holder coolingB
sediment in the fuel supplyC
distortion of the fuel spray patternD
improper atomization of the fuel
考题
单选题Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.A
water in the fuel oil supplyB
excessive fuel nozzle holder coolingC
a distorted fuel spray patternD
leakage past the plunger into the oil drain
考题
单选题What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）A
Spark plugB
Heat of compressionC
CarburetorD
Glow plug
考题
单选题After the ship is out of the harbour and in “Full Speed”, well change （）.A
to fuel oil instead of diesel oilB
for fuel oil instead of diesel oilC
to diesel oil into fuel oilD
for diesel oil into fuel oil
考题
单选题Fuel droplets injected into a diesel engine cylinder must have adequate penetration to （）A
prolong the ignition delay periodB
ensure the beginning of fuel injectionC
thoroughly utilize the air chargeD
allow controlled fuel combustion
考题
单选题Fuel injected into a diesel engines cylinder is ignited by （）.A
the heat compressed fuel/air mixture in the cylinderB
the fuel igniterC
the fuel injectorD
the fuel pump
考题
单选题The most common diesel engine fuel system problems are caused by （）.A
incorrect adjustmentsB
dirty fuelC
broken fuel linesD
excessive vibration
考题
单选题A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.A
as much fuel asB
less fuel thanC
less fuel asD
more fuel than
考题
单选题When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）A
The diesel oil must never be allowed to mix with the heavy fuelB
The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valveC
The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valveD
The heating steam must be secured before the diesel oil passes through the three-way valve
考题
单选题Turbulence in a diesel engine cylinder is of major importance in providing （）.A
proper fuel meteringB
complete fuel/air mixingC
minimal fuel penetrationD
proper fuel timing
考题
单选题The most effective method in removing water from diesel fuel oil is by（）A
centrifuging the fuelB
using it in the engineC
heating the fuel tanksD
starting the fuel
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