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Outlets in gasoline fuel lines are（）.
A . permitted for drawing fuel samples
B . permitted for draining fuel from lines
C . permitted for bleeding air from lines
D . prohibited
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When fighting an oil or gasoline fire in the bilge，which of the following should NOT be used?（）
A . Foam
B . Solid stream water nozzle
C . All-purpose nozzle
D . Carbon dioxide
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Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?（）
A . compression must be low for effective spark ignition
B . compression must be low for required horsepower and torque generation
C . compression must be low to prevent pre-ignition
D . compression must be low to have effective pre-ignitio
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Gasoline tanks should be filled（）.
A . to the top to expel all vapors from the tanks
B . to the top so the operator is certain how much fuel he has aboard
C . with only sufficient fuel for the planned trip so excess gasoline is not carried
D . to near the top with some space allowed for gasoline expansio
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All of these alternatives are carbon-based fuels（）molecules are smaller and simpler than those of gasoline.
A . which
B . who
C . what
D . whose
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Where should the tops of vents from gasoline tanks terminate?（）.
A . In open air
B . Inside cabins near the overhead
C . In the machinery space near the engine air intake
D . Underwater
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Gasoline fuel tank vents should terminate（）.
A . in the engine compartment
B . in the fuel tank space
C . above or outside the hull
D . at the most convenient locatio
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The nozzle of a gasoline hose or can should be kept（）.
A . in contact with the fill opening to guard against static spark
B . from making contact with the fill opening to guard against static spark
C . in contact with the fill opening to allow proper venting
D . None of the above
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Diesel engines are considered safer than gasoline engines because（）.
A . they are more heavily built
B . the fuel used is less volatile
C . they can be easily reversed
D . they operate at a lower speed
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The tops of vents from gasoline tanks should terminate（）.
A . in open air
B . inside cabins
C . in machinery space
D . underwater
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Ethanol is commonly used as a gasoline supplement, but it is currently about（）methanol.
A . twice as expensive as
B . twice as more expensive as
C . as twice more expensive as
D . as twice expensive a
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Upon completion of fueling a gasoline driven vessel it is necessary to（）.
A . keep ports，doors，windows，and hatches closed
B . start engines immediately
C . ventilate before starting engine
D . None of the above
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Gasoline fumes tend to（）.
A . settle near the bottom of the bilge
B . settle near the top of the bilge
C . settle evenly throughout all levels of the bilge by mixing with air
D . disperse to atmosphere
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What would you consult to determine the number of persons required on duty while loading a cargo of leaded gasoline on your tanker? （）
A . the Matitime Code of China
B . Certificate of Inspection
C . Oil Transfer Procedures Manual
D . IOPP Certificate
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Gasoline vapor tends to collect（）.
A . above the floor plates of the bilges
B . above the carburetor level
C . at the lowest point of the bilge areas
D . at no particular level
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A diesel engine burns （） a gasoline engine of the same capacity in the same period of time.
A . as much fuel as
B . less fuel than
C . less fuel as
D . more fuel tha
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A diesel engine is similar to a gasoline engine except that the former has no （）.
A . cross-head
B . cylinder
C . connecting rod
D . spark plug
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Which statement is TRUE concerning gasoline vapors on board a vessel（）.
A . They are heavier than air and will settle in the lowest part of the vessel
B . They are lighter than air and will settle in the highest part of the vessel
C . They should be vented into the engine to improve combustion
D . They should be vented into the wheelhouse
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The shut off valve at the gasoline tank which can be operated from outside the tank space （）.
A . controls the amount of gasoline to the engine
B . shuts off the gasoline supply at the tank
C . is used if the gasoline tank leaks
D . All of the above
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Ethanol is commonly used（）a gasoline supplement.
A . for
B . to
C . by
D . a
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A. The car is running out of gasoline.B：We'd better fill it up.以上对话是发生在以下哪种语境中_____。
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原文:Gasoline is a fuel whose vapor is readily explosive..译文:汽油是一种燃料,其油气 。
A、很容易蒸发
B、 很容易爆炸
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Because of the rising cost of fuel, scientists are building automobile engines who will conserve gasoline but still run smoothly.
此题为多项选择题。
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Todays low gasoline prices make consumers willing ...
Todays low gasoline prices make consumers willing to indulge their preference for larger cars, which consume greater amounts of gasoline as fuel. So United States automakers are unwilling to pursue the development of new fuel-efficient technologies aggressively. The particular reluctance of the United States automobile industry to do so, however, could threaten the industrys future. Which of the following, if true, would provide the most support for the claim above about the future of the United States automobile industry？
A．A prototype fuel-efficient vehicle, built five years ago, achieves a very high 81 miles per gallon on the highway and 63 in the city, but its materials are relatively costly.
B．Small cars sold by manufacturers in the United States are more fuel efficient now than before the sudden jump in oil prices in 1973.
C．Automakers elsewhere in the world have slowed the introduction of fuel-efficient technologies but have pressed ahead with research and development of them in preparation for a predicted rise in world oil prices.
D．There are many technological opportunities for reducing the waste of energy in cars and light trucks through weight, aerodynamic drag, and braking friction.
E．The promotion of mass transit over automobiles as an alternative mode of transportation has encountered consumer resistance that is due in part to the failure of mass transit to accommodate the wide dispersal of points of origin and destinations for trips.
