更多"In discussing oil pollution, one im"的相关试题:
[单项选择]Why is it important for fuel oil tanks not to be topped off at the inner bottom level when loading on a cold day?（）
A. Increased viscosity of the product needs higher loading pressure, which increases the chances of a spill
B. Air pockets may cause the fuel to bubble out of the ullage hole
C. The temperature rise of the fuel will cause an overflow
D. Fueling valve may become stuck closed and cause the fuel oil to spill before the valve can be opened
[单项选择]
When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil
A. (1) only is correct
B. (2) only is correct
C. both (1) and (2) are correct
D. neither (1) or (2) are correct
[单项选择]The ignition quality of a fuel oil is an important operational consideration because it（）
A. indicates the amount of abrasive material in the fuel
B. affects the starting ability of a cold engine
C. determines the amount of fuel penetration engine
D. affects the compression ratio of an operating engine
[单项选择]One characteristic of a lubricating oil adversely affecting the result of centrifuging is （）
A. high TBN value
B. low oil floc point
C. low oil demulsibility
D. low oil neutralization number
[单项选择]Oil is an important（）material which can be processed into many different products, including plastics.
A. uncovered
B. raw
C. fresh
D. crude
[单项选择]One engine manufacturer recommends heavy fuel oil should not be heated above 80℃ to 95℃ (176 ℉ TO 203℉) before purificationThis upper limit should be observed to ensure against（）
A. flattening of the bowl neoprene O-rings
B. operation within the explosive rang of the fuel
C. excessive purifier operating pressures
D. excessive oil viscosity
[单项选择]which function is the most important one of the GMDSS.（）
A. alerting
B. on-scene communication
C. safety information
D. general communication
[单项选择]One of function of diesel engine lubricating oil is to （）
A. induce carbon formation on cylinder walls
B. improve fuel penetration in the combustion space
C. form a friction reducing film between mating surfaces
D. lubricate the fuel injection
[单项选择]Fuel oil is thought to be one of the main factors （） the operation and maintenance of an engine.
A. have nothing to do with
B. having nothing to do with
C. have much to do with
D. having much to do with
[单项选择]One of the reasons that causes oil flowed from sludge outlet of a self-cleaning purifier is （）
A. seal water supply be cut off
B. make-up water supply be cut off
C. oil outlet valve closed or not open sufficiently
D. the flow rate of oil is too much
[单项选择]One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
A. seal water supply be cut off
B. make up water supply be cut off
C. oil outlet valve closed or not open sufficiently
D. the flow rate of oily water is too much
[单项选择]VHF radio is one of the very important navigational instruments on board,（）messages can be sent.
A. by which
B. through which
C. by that
D. through that
[单项选择]VHF Radio is one of the very important navigational instruments on board，（）messages can be sent.
A. by which
B. through which
C. by that
D. through that
[单项选择]Which one is not important for your safety on board ship?（）
A. know where the lifejacket is stowed
B. know where the life-saving craft are fitted on the ship
C. know the escape routes
D. Good professional knowledge
[单项选择]No one should blind himself （） the well-known fact.
A. with
B. to
C. for
D. over
[单项选择]Please mark (out) one of the most important register of shipping in the world. （）.
A. HK MARDEP
B. COSCO
C. Lloyd's Society
D. Liberia Shipping Registry
[单项选择]The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.
A. a strain tank
B. a head tank
C. a service tank
D. a strainer
[单项选择]When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
A. Should not exceed
B. Must be up to
C. Should exceed
D. Should be about
