When separating the lube oil without a

1、Lube oil pumps taking suction from the

Lube oil pumps taking suction from the sump of most small marine engines are usually （）.Aof the diaphragm typeBof the centrifugal typeCof the positive displacement typeDindependently driven by electric motor

2、Waste oil from the lube oil sumps of m

Waste oil from the lube oil sumps of machinery may NOT be （）.Adrained into the vessels bilgesBreclaimed for other usesCheld in a slop tankDpurified and then reused

3、I remember （）the oil separator the day

I remember （）the oil separator the day before yesterday But it failed again.Ato repairBto be repairedCrepairingDbeing repaired

4、The separating effect of oil separator

The separating effect of oil separator is not very good, the reason may be（）Atoo little seal waterBimproper gravity discCoil discharging pump not working very wellDlow water level of the working water

5、For a main diesel engine the lube oil

For a main diesel engine the lube oil in the bearings is drawn from （）, usually located in the bedplate.Aa gravity tankBa sumpCa vesselDa bottle

6、When a vessel violates the oil polluti

When a vessel violates the oil pollution laws，who may be held responsible?（）AMaster onlyBOwners onlyCLicensed officers onlyDAny individual connected with the vessel involved in the operatio