网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
What is the harmful effect of sulfur in a fuel?（）
A
It causes excessive smoking and soot at low firing rates
B
It doesn’t readily burn when combined with oxygen
C
It clogs fuel oil strainers more often
D
It forms a corrosive acid when mixed with water or water vapor
参考答案
参考解析
解析：
暂无解析
更多 “单选题What is the harmful effect of sulfur in a fuel?（）A It causes excessive smoking and soot at low firing ratesB It doesn’t readily burn when combined with oxygenC It clogs fuel oil strainers more oftenD It forms a corrosive acid when mixed with water or water vapor” 相关考题
考题
Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel engine?A.ViscosityB.Sulfur contentC.Pour pointD.Cetane number
考题
The author suggests in the last paragraph that the effect of peer pressure is[A] harmful[B] desirable[C] profound[D] questionable
考题
A smoking exhaust from an operating diesel engine could be caused by( ).A.low sulfur content in the fuelB.a loose injector inlet connectionC.late fuel injectionD.high injection pressure
考题
When using a fuel with a higher than normal sulfur content in an auxiliary four stroke diesel engine, you mayA.maintain higher than normal jacket water temperatureB.change the lube oil more frequently than normalC.maintain a higher air-box temperature than normalD.maintain a higher air-box pressure than normal
考题
when the fuel is provided by the supplier ,what specifications of the oil can you get from the supplier receipt ?
考题
Heavy fuel oils when spilled are ______.A.more harmful to sea life than lighter oilsB.easier to clean up than lighter refined oilsC.less harmful to sea life than lighter oilsD.not a real threat to marine life
考题
--What you said is not__________with what you do, which has a bad effect on our kids.
--Sorry, I will change my ways.
A．consistent
B．controversial
C．confident
D．considerate
考题
单选题The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in （）A
clogged fuel injection pumpsB
increased cylinder liner wearC
intake valve stem corrosionD
varnish deposit on pistons
考题
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?（）A
Move the fuel control mechanism to the no fuel positionB
Block the fuel supply by closing the master fuel valveC
Shut off the fuel supply and block the flow of intake airD
Relieve all pressure in the fuel system
考题
单选题A smoking exhaust from an operating diesel engine could be caused by （）A
low sulfur content in the fuelB
a loose injector inlet connectionC
late fuel injectionD
high injection pressure
考题
单选题Burning fuel with a high sulfur content in a diesel engine will （）A
increase thermal efficiencyB
cause clogging of the fuel systemC
increase the ability of the engine to start in cold weatherD
produce corrosion in the cylinder and exhaust system at low loads
考题
单选题Heavy fuel oils when spilled are（）.A
more harmful to sea life than lighter oilsB
easier to clean up than lighter refined oilsC
less harmful to sea life than lighter oilsD
not a real threat to marine life
考题
单选题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What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）A
WhiteB
BlackC
BlueD
Clear
考题
单选题Cylinder oil is a high viscosity mineral oil, with a （） machined to the anticipated sulfur content of the fuel.A
TANB
TBNC
SAND
SBN
考题
单选题What harmful condition can result if a diesel engine is operated at very light loads for long periods of time?（）A
increased carbon buildupB
burning of intake valvesC
excessive firing pressuresD
increased fuel consumption
考题
单选题What is one effect of running a diesel engine at too cool a temperature? （）A
Buildup of sludge in the lubricating systemB
Excessive fuel consumptionC
Severe heat stresses on mechanical partsD
Foaming of the lubricating oil
考题
单选题What you do in your spare time is your own _____. However it should not be harmful to others.A
businessB
purchaseC
bargainD
sale
考题
单选题When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）A
Secure all engine room doors，hatches，and ventsB
Close the fuel line valveC
Check the spread of the fire with foamD
Cast the barge off the wharf
考题
单选题Exhaust valve grooving and corrosion is caused by certain components of residual fuel oilThese components are sodium, sulfur, and （）.A
vanadiumB
carbonC
copperD
ash
考题
单选题（）is harmful for fuel pumps, fuel valves, cylinder liner, exhaust valve seats, and the turbocharger blades as well.A
Bad combustion of the fuelB
Bad atomization of the fuelC
Liquid contaminantsD
Solid contaminants
考题
单选题What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）A
ElectricityB
Chain reactionC
PressureD
Smoke
考题
单选题What you said is not________with what you do, which has a bad effect on our kids.A
consistentB
controversialC
confidentD
considerate
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When using a fuel with a higher than normal sulfur content in an auxiliary diesel engine, you should（）A
maintain higher than normal jacket water temperatureB
change the lube oil more frequently than normalC
maintain a higher air-box temperature than normalD
maintain a higher air-box pressure than normal
热门标签
最新试卷
