maintain higher than normal jacket water temperature
change the lube oil more frequently than normal
maintain a higher air-box temperature than normal
maintain a higher air-box pressure than normal
第1题：
Obviously, for a given fuel oil, its pour point is ______its cloud point.
A.lower than
B.higher than
C.as same as
D.better than
第2题：
A user reports that their system is starting to run slower, especially when opening large local files. The system has sufficient RAM for the users applications, but the hard drive seems to have higher than normal activity when opening large files. Which of the following would be the BEST tool to diagnose and troubleshoot this problem? （）
第3题：
A smoking exhaust from an operating diesel engine could be caused by( ).
A.low sulfur content in the fuel
B.a loose injector inlet connection
C.late fuel injection
D.high injection pressure
第4题：
The former is cheaper and has higher sulfur content than the latter.
The latter is found closer to the surface and contains more sulfur than the former.
The former can help coal-burning power plants meet limits on sulfur dioxide emissions and costs more than the latter.
The latter generates more energy per pound of coal than the former.
The former is found closer to the surface than the latter and helps coal-burnning power plants meet limits on sulfur dioxide emissions.
第5题：
clogged fuel injection pumps
increased cylinder liner wear
intake valve stem corrosion
varnish deposit on pistons
第6题：
Sweat damage in a hatch full of canned goods in cartons will occur when the ______．
A.Air temperature is higher than the temperature of the cargo
B.Air temperature is lower than the temperature of the cargo
C.Dew point is higher than the temperature of the cargo
D.Dew point is lower than the temperature of the cargo
第7题：
dispersant additives
floc point
alkalinity additives
ignition quality
第8题：
When using a fuel with a higher than normal sulfur content in an auxiliary four stroke diesel engine, you may
A.maintain higher than normal jacket water temperature
B.change the lube oil more frequently than normal
C.maintain a higher air-box temperature than normal
D.maintain a higher air-box pressure than normal
第9题：
Provides for faster loading
Lowers oxygen content in the tank
Provides better fuel economy
All of the above
第10题：
quantity of fuel injected is decreased
quantity of fuel injected will always be increased
start of injection is advanced
duration of injection will always be greater