The removal of （） from lubricating oil

1、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

2、To lubricate the swivel or remove corr

To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.AglycerineBgraphiteCkeroseneDfresh water and soa

3、The ability of lubricating oils to res

The ability of lubricating oils to resist viscosity changes during temperature changes is indicated by the（）AAmerican PetroleumBInstitute number viscosity index numberCSeconds Saybolt Furol numberDSeconds Saybolt Universal number

4、The selection of a lubricating oil dep

The selection of a lubricating oil depends to a great extent on the operating conditions,（）.Athe type of coolantBthe design of the engineCthe type of fuel to be burnedDB and C

5、The selection of an oil from the （） de

The selection of an oil from the （） depends to a great extent on the operating conditions, the design of the engine and the type of fuel to be burned.Acommercially availableBcommerciallyCcommercial availableDcommerce available

6、Releasing oil from the sea anchor of a

Releasing oil from the sea anchor of a lifeboat may（）.Akeep the propeller from being fouledBincrease propeller speedChelp calm the waves in the vicinity of the craftDincrease the holding power of the sea anchor