更多"Sludge may form in the lubricating "的相关试题:
[单项选择]Sludge may form in the crankcase of an air conditioning compressor as a result of （）.
A. bubbling refrigerant
B. overheating and oxidation
C. lowered operating temperatures
D. reducing the cloud or flash point
[单项选择]Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of （）
A. refrigerant bubbles in the lube oil
B. refrigerant reducing the lube oil viscosity
C. oxidation of the lube oil from overheating
D. reducing the floc or cloud point of the oil
[单项选择]Sludge formation in a diesel engine lube oil system is caused by（）
A. carbonization of oils from the combustion chambers
B. emulsions of lube oil and water
C. coagulation of unburned fuel below the piston rings
D. all of the above
[单项选择]The （）is used to burn oil sludge.
A. clarifier
B. oil/water separator
C. incinerator
D. distiller
[单项选择]（）can cause oil flow from sludge outlet of self cleaning separator.
A. Too much sludge accumulated in separator bowl
B. Diameter of gravity disc too large
C. High level tank lack of water
D. Oil input too rapidly
[单项选择]The oil sludge is burnt in the （）on board I’ll show you the ashes.
A. boiler
B. main engine
C. auxiliary engine
D. incinerator
[单项选择]Waste oil from the lube oil sumps of machinery may NOT be （）.
A. drained into the vessels bilges
B. reclaimed for other uses
C. held in a slop tank
D. purified and then reused
[单项选择]Oil may NOT be transferred unless（）.
A. there are two certificated tankermen on each vessel
B. the vessel is equipped with constant-tension winches
C. discharge containment equipment (i.e. drip pans) are in place
D. All of the above
[单项选择]As for turbine oil, contact with water in the form of steam will be inevitable so good （） properties will be essential.
A. defrosting
B. de-oiling
C. demulsifying
D. dehumidifying
[单项选择]Existing crude oil tankers may，（）being provided with segregated ballast tanks or operating with a cargo tank cleaning procedure using crude oil washing，operate with dedicated clean ballast tanks in accordance with the specified provision of the Regulation.
A. as per
B. in the consequence of
C. in accordance with
D. in lieu of
[单项选择]Diesel oil may be used to cool （） of a diesel engine.
A. cylinders
B. exhaust valves
C. pistons
D. fuel valves
[单项选择]A snag or other underwater obstruction may form a（）.
A. V-shaped ripple with the point of the V pointing upstream
B. V-shaped ripple with the point of the V pointing downstream
C. small patch of smooth water on a windy day
D. smoothing out of the vessel's wake
[单项选择]Halon gas will decompose and may form very hazardous toxic fumes when discharged（）.
A. directly on flames
B. at room temperature
C. in an extremely cold climate
D. None of the above
[单项选择]If sludge accumulates on the underside of a diesel engine piston, it will（）
A. cause blow-by
B. chemically attack the piston skirt
C. form an emulsion of lube oil and water
D. raise the piston temperature
[单项选择]
The sludge tank installed in the diesel engine room is used to collect（）
Ⅰ.sludge from the fuel oil settling tanks ad centrifuge
Ⅱ.water that has been collected in the settling tank
A. Ⅰonly
B. Ⅱ only
C. bothⅠand Ⅱ
D. neitherⅠor Ⅱ
