too little seal water
improper gravity disc
oil discharging pump not working very well
low water level of the working water
第1题:
overhauling every two year
working at intervals
renewing filtration material
pumping bilge water from different layers respectively
第2题:
to repair
to be repaired
repairing
being repaired
第3题:
The requirement to carry an Oil Record Book does not apply to a ship that ______.
A.is not equipped to discharge overboard any oil or oily mixture
B.is on an international voyage to a country that is a party to MARPOL
C.has an International Oil Pollution Prevention Certificate
D.has an oily water separator of sufficient capacity for the oil wastes generated
第4题:
has learnt
have learnt
learn
are learning
第5题:
a separator
oil
water
an oil collecting space
第6题:
working at intervals and properly heating
warming up to 70℃, increase water supply flow
improving impulse of water supply
reducing water supply flow
第7题:
filter
hole
pollution
content
第8题:
did work
would work well
didnt work
wouldnt work
第9题:
sliding bowl bottom
gravity disc
separating disc
scum valve
第10题:
filled with clean water before operation
keep air cushion in oil collecting space during running
check oil level during running
clean inner separator with low pressure stream