lube oil
fuel oil
turbine oil
grease
第1题：
The separation of impurities and water from ______is essential for good combustion of diesel engines.
A.lube oil
B.fuel oil
C.turbine oil
D.grease
第2题：
______ is not likely to be a methods of Traffic Separation．
A.Separation of opposing streams of traffic by separation zones or lines
B.The separation of through traffic from local traffic by provision of inshore traffic zones
C.Division of traffic from several different direction into sectors
D.Control of routing traffic through shipping routes
第3题：
29． The writer thinks that people in large cities should __________ ．
A． stop the used water from getting into underground
B． only use the water from the rivers
C． make their used water clean again
D． use as much sea water as possible
第4题：
Receives saturated steam from the generating tubes
Serves as a reservoir of boiler feed water
Holds internal fittings for separation of moisture from steam
Collects steam exhausted from the turbines
第5题：
main stern stop valve
auxiliary steam stop valve
scum valve
blow down valve
第6题：
When a clarifier is running the impurities and water collect at the bowl _____.
A.center
B.periphery
C.inlet
D.upper parts
第7题：
第8题：
A high rate of separation between oil and water is favored by ______.
A.large size of oil globule(小球)
B.low temperature
C.high viscosity
D.high flow rate
第9题：
large size of oil globule
low temperature
high viscosity
high flow rate
第10题：
engine
sea water pump
cylinder cooler
fresh water generator