海船船员考试
单选题The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated （）A for atomizingB for centrifugingC in a storage tankD in the re-circulating line
题目
for atomizing
for centrifuging
in a storage tank
in the re-circulating line
相似问题和答案
第1题：
When an auxiliary boiler is panting and emitting(发出) black smoke, you should______.
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
第2题：
Which product is most likely to accumulate static electricity ________．
A.Crude oil
B.Hard asphalt
C.Lubricating oil
D.Residual fuel oil
第3题：
The desirable properties of a marine fuel oil should include .
A.high flash point and high viscosity
B.low flash point and high viscosity
C.low heating value and high sulphur content
D.high heating value and low sulphur content
第4题：
regulate the fuel supply
maintain a constant fuel viscosity at the fuel valves
maintain efficient cooling
alter the fuel density
第5题：
check the pyrometer readings
check the crankcase oil level
check the fuel oil strainers
clean the fuel system
第6题：
Which lubricating oil additive is used in diesel engines to reduce the tendency(倾向)for sludge and varnish to form on the engine parts?
A.Flash point improvers
B.Pour point improvers
C.Inhibitors
D.Foam suppressors(抑制物)
第7题：
close the static leg filling valve
close the overflow tank falling valve
reduce the fuel oil pumping rate
stop the fuel oil pumping operation
第8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9题：
high flash point and high viscosity
low flash point and high viscosity
low heating value and high sulphur content
high heating value and low sulphur content
第10题：
secure the ventilation
find a soda acid extinguisher
shut off the fuel oil supply
secure the generator