-
The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the ().
A . quantity of fuel to be received
B . flash point of the fuel as it is received
C . fuel temperature as it is received
D . viscosity of the fuel being received
-
Fuel pump index is ().
A . the viscosity index
B . the fuel oil contents
C . the starting speed
D . the reading at the rack
-
Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from ().
A . within the space concerned
B . outside the space concerned
C . the throttle station
D . within the fire room
-
Which of the substances listed is satisfactorily removed from the fuel by a centrifugal oil purifier?()
A . Impurities
B . Lube oil
C . Gasoline
D . Diesel fuel
-
The effective pump stroke of an individual port-and-helix fuel injection pump is determined by the ()
A . fuel delivery pressure
B . pump plunger diameter
C . plunger control rack position
D . total pump stroke
-
In an oil cooler circulated by sea water, the oil is at a larger pressure the result being that any leak in the cooler will mean a loss of ().
A . oil
B . sea water
C . refrigerant
D . fresh water
-
Because of the close tolerances used in diesel engine fuel oil pumps, a worn plunger requires()
A . grinding the spare plunger to the barrel
B . replacing the plunger and the barrel
C . highly polishing both the plunger and barrel
D . replacing plunger only
-
In a general oil cooler circulated by sea water, the oil is at a higher pressure, the result being that any leak in the cooler will mean a loss of ().
A . oil
B . sea water
C . air
D . fresh water
-
Heat for igniting the fuel oil in the cylinder of a diesel engine is generated by the ()
A . electronic ignition system
B . compression of air by the piston
C . friction in the fuel injector
D . fuel oil bearing system
-
A dirty fuel oil filter is can be detected by () Ⅰ.fuel oil analysis Ⅱ.observing the pressure drop across the filter
A . Ⅰonly
B . Ⅱonly
C . eitherⅠorⅡ
D . neitherⅠnor
-
Because the timing of injection is crucial, () mounted on the camshaft, which is driven by the crankshaft are used to operate the fuel pumps, one of which is provided for each cylinder.
A . gears
B . rams
C . barrels
D . cam
-
Sealing in pump shaft is achieved by means of the ().
A . gasket
B . packing
C . washer
D . spring
-
The plunger in the fuel injector pump, usually operated by a (), is driven up and down when working.
A . crankshaft
B . camshaft
C . piston rod
D . rack and pinio
-
You are transferring fuel from the storage tanks to the day tanks by means of an electric fuel oil transfer pumpIf the pump motor catches fire, you would FIRST ().
A . secure the fuel manifold
B . shut off power to the pump
C . shut off the power ventilation
D . spray water on the fire
-
Oil is supplied to the cylinder wall and () by means of mechanical lubricators.
A . the cylinder cover
B . the piston rings
C . the piston crown
D . the piston skirt
-
The common method of applying oil to the cylinder walls is by means of small pump assembled in units, known as ().
A . mechanical lubricator
B . lubrication function
C . forced feed system
D . bearing lubricatio
-
The percentage of impurities in a specific fuel oil sample is determined by ().
A . settling in a fuel tank
B . testing in a laboratory centrifuge
C . burning in a calorimeter
D . testing in a closed cu
-
The fuel injector pump is operated by () which drives the plunger up and down.
A . a separate motor
B . a cam
C . a generator
D . a chai
-
Your vessel is taking on fuel oil when a small leak develops in the hose and you have ordered the pumping stoppedBefore resuming pumping,you should().
A . notify the terminal superintendent
B . place a large drip pan under the leak and ping the scuppers
C . repair the hose with a patch
D . replace the hose
-
In a typical fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to () and heated.
A . a service tank
B . a collecting tank
C . a sump
D . a settling tank
-
One of the most widely discussed subjects these days is. energy crisis. Automobile drivers cannot get gasoline; homeowners may not get enough heating oil; factories are 【C1】______ by a fuel shortage.
The crisis has 【C2】______ questions about the large oil companies and windfall 【C3】______ . Critics of the oil industry charge that the major companies are getting richer because of the oil shortage. Shortage, of course, drives prices up. As oil prices rise, the critics say, the oil companies will make more money (windfall profits) without doing a thing to 【C4】______ the extra cash. "Windfall" profits are sudden unearned profits--profits made 【C5】______ luck, or some special turn of events.
The word itself tells what "windfall" means--something blown down by the wind, such as trees, or fruit 【C6】______ from trees. But the word has taken on a special meaning. This meaning (getting something unearned) was first used in medieval England.
This is 【C7】______ it started: at that time much of the land was in the hands of 【C8】______ barons. The rest of the people, commoners, lived and worked on their vast estates. They planted the seed, cared for the farm animals and harvested the crops. Not all the land, however, was used for farming. Every baron kept a large private forest for 【C9】______ deer and wild bear.
When hungry, the people sometimes would kill the animals in the lord's forest for food. And there were times 【C10】______ they might cut down trees for fuel. So, strong laws were passed to protect the forests, and the animals. Violations were severely 【C11】______ .
But there was one way people could get wood from the forest. If they found trees blown down by the wind ("windfall") they were free to take them for use as fuel in their homes. And that is the meaning that has come down to us--something good gotten by luck or 【C12】______ .
The common people of old England, often hungry and cold, must often have prayed for a good strong wind. Critics today 【C13】______ that the oil industry has also been praying for something just like it --some political or military 【C14】______ that might produce a windfall--a rise in oil prices and profits.
The oil companies deny that this is so. In Congress, critics of the oil companies have proposed a 【C15】______ on such profits. The debate on rising oil price will go on for some time, and most likely we will hear more and more about windfall profits.
【C1】______
A.threatened
B.claimed
C.explored
D.narrowed
-
In purification, there is no fuel oil in the clean oil outlet.It could be caused by _____. I.too high temperature of the dirty fuel oil; II. too low temperature of the dirty fuel oil; III. Clogged filter
A.I
B.I.II.III
C.II.III
D.II
-
The pumps press oil into the cross-head bearing gap when the load on the shell is at its lowestWhat is the meaning of “its” in the sentence above?
A.the cross-head
B.the pumps
C.the shell
D.the load
-
Crude oil is brought to the surface by means of____.
A.expansion of the hydrocarbons
B.pressure and pumping
C.vacuum created in the drilling pipe
D.expansion and contraction of the earth's surface
此题为多项选择题。