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
Corrosion and grooving on the blade of an exhaust driven turbocharger is caused by certain components of residual fuel oilsThese components are vanadium,sodium, and（）
A
copper
B
carbon
C
hydrogen
D
sulfur
参考答案
参考解析
解析：
暂无解析
更多 “单选题Corrosion and grooving on the blade of an exhaust driven turbocharger is caused by certain components of residual fuel oilsThese components are vanadium,sodium, and（）A copperB carbonC hydrogenD sulfur” 相关考题
考题
Which of the following would be an advantage to using a blade server as opposed to a rack mount server?()
A. Blade servers allow for internal tape drivesB. Blade servers offer more rack densityC. Blade servers are typically fasterD. Blade servers allow for more RAM
考题
A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.A.corrosion at low engine loadsB.erosion at high engine loadsC.overload at high engine loadsD.scaling at all exhaust temperatures
考题
Which of the following would be an advantage to using a blade（刀片） server（服务器） as opposed to a rack（机架式） mount server？（）A、 Blade servers allow for internal tape drivesB、 Blade servers offer more rack densityC、 Blade servers are typically fasterD、 Blade servers allow for more RAM
考题
Which of the following would be an advantage to using a blade server as opposed to a rack mount server?（）A、Blade servers allow for internal tape drivesB、Blade servers offer more rack densityC、Blade servers are typically fasterD、Blade servers allow for more RAM
考题
单选题Vessel constrained by her draught is（）.A
a non-power driven vesselB
a sailing vesselC
a power driven vesselD
a power driven vessel or a non-power driven vessel
考题
单选题The burning of fuel oil in a diesel engine having a high sodium content, will cause （）A
corrosion and grooving of exhaust valvesB
corrosion and gumming of the fuel injection pumpC
salt deposits in the exhaust manifoldD
slag deposits in the fuel injection equipment
考题
单选题The diesel engine exhaust gas bypass, as fitted with some waste heat boilers, is installed to （）A
prevent engine back pressure at heavy loadsB
increase total engine efficiency at low loadsC
prevent boiler corrosion at low engine loadsD
improve engine fuel consumption at any load
考题
单选题Diesel engine mufflers or silencers reduce the engine exhaust noise by （）A
passing the exhaust through long head pipesB
diffusing exhaust vibrations through activated carbon bafflesC
increasing the exhaust gas velocityD
reducing the exhaust gas velocity
考题
单选题Modem engines make use of exhaust gas driven turbo-chargers to supply pressurized fresh air for （） and supercharging.A
scavengingB
startingC
coolingD
blowing
考题
单选题Diesel engine exhaust noise can be reduced in an exhaust muffler by （）A
changing the direction of exhaust gas flowB
increasing the exhaust gas velocityC
changing the exhaust gas weightD
increasing the exhaust gas static pressure
考题
单选题The exhaust system of a diesel engine is usually designed to remove exhaust gases and to （）A
provide exhaust back pressureB
prevent exhaust smoke emissionsC
power a reciprocating superchargerD
muffle exhaust gas noise
考题
单选题Chafing gear（）.A
reduces and prevents corrosion of standing riggingB
prevents corrosion of running riggingC
reduces and prevents wear caused by the rubbing of one object against anotherD
protects the body against extreme cold
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Each journal and pin should be examined for （） and grooving.A
bridgesB
recessesC
rearsD
ridging
考题
单选题To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.A
reduce the engine driven fuel pump outlet pressureB
retard the fuel injector timing to reduce powerC
increase the fuel rack settingD
reduce the load on the engine
考题
单选题In a diesel engine exhaust system, the cooling of the exhaust gases below their dew point, will result in （）A
increased engine back pressureB
sulfuric acid corrosionC
surface pitting of the turbochargerD
moisture impingement on the turbocharger compressor blade
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Which of the following would be an advantage to using a blade（刀片） server（服务器） as opposed to a rack（机架式） mount server？（）A
Blade servers allow for internal tape drivesB
Blade servers offer more rack densityC
Blade servers are typically fasterD
Blade servers allow for more RAM
考题
单选题Modern engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.A
are made ofB
are made fromC
make use ofD
are used to
考题
单选题A substance found in residual fuels which tends to cause exhaust valve corrosion and grooving, is（）A
carbonB
vanadiumC
calciumD
hydrogen
考题
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（）A
a modern diesel engine；a turbine wheelB
a modem diesel engine；exhaust gasesC
a compressor；an exhaust gas turbochargerD
a compressor；a turbine wheel
考题
单选题Modem engines （） exhaust gas driven turbo-chargers to supply pressurized fresh air for scavenging and supercharging.A
make use ofB
have made the use ofC
by means ofD
make advantage of
考题
单选题The exhaust ports are located around the lower part of the cylinder liner, （）the products of combustion are driven by scavenging air.A
in whichB
by whichC
through whichD
from which
热门标签
最新试卷