单选题Dirty oil must be () before being used again.A mixed with clean oilB purifiedC heatedD strained

题目
单选题
Dirty oil must be () before being used again.
A

mixed with clean oil

B

purified

C

heated

D

strained

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相似问题和答案

第1题:

According to the passage, it is recommended that the heat exchanger side be cleaned by .

A.flushing with chemical solvent without being dismantled

B.brushing mechanically after being disassembled

C.flushing with flesh water only

D.flushing with clean oil only


正确答案:B

第2题:

Dirty oil must be ______before being used again .

A.mixed with clean oil

B.purified

C.heated

D.strained


正确答案:B

第3题:

- Must we clean the room before we leave?- No , you_____

A.mustn't

B.can't

C.needn't


参考答案:C

第4题:

An oil tanker operating with dedicated clean ballast tanks shall be equipped with ______,approved by the Administration on the basis of specification recommended by the Organization,to enable supervision of the oil content in ballast water being discharged.

A.An oil content meter

B.An oil checker

C.An analyzer of oil content

D.A mixer of oily water


正确答案:A

第5题:

Which of the following is NOT on the list items to be recorded in Oil Record Book Part I (machinery space operation)?

A.accidental discharge of oil

B.disposal of oil residues

C.quantity of water produced by F.W.G

D.discharge of dirty ballast or cleaning water from fuel oil tanks


正确答案:C

第6题:

When started, a complete oily water separating unit is first filled ______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.

A.with dirty water

B.with clean water

C.by oily water

D.by mixed water


正确答案:B

第7题:

Which of the following can be used in hydraulic transmission system?

A.Hydraulic oil

B.Animal oil

C.Light oil

D.Fuel oil


正确答案:A

第8题:

___ the clean water in this area is being used up.

A.It is decided

B.It is reported

C.It is demanded that

D.It is happened that


正确答案:B

第9题:

Which substance is NOT considered to be Oil under the pollution prevention regulations?

A.Petroleum and fuel oil

B.Sludge

C.Oil mixed with dredge spoil

D.Oil refuse and oil mixed with wastes


正确答案:C

第10题:

When collecting condensation for drinking water,______.

A.A sponge used to mop up and store condensation must be kept salt free

B.Only condensation on the bottom of the canopy should be collected

C.It should be strained through a finely woven cloth

D.Chlorine tablets should be used to make it drinkable


正确答案:A

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