During fueling operations, which of the listed precautions should be taken when topping off fuel tanks?（）
A . Reduce the pumping rate by closing the deck filling valve
B . Close all overflow valves
C . Place 5 gallon containers under all flange connections in the fuel line
D . Reduce the pumping rate and sound tanks frequently as the level rise
相似题目
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During which condition should the operator of a pedestal crane shutdown operations?（）
A . Bunkering
B . High winds
C . Potable water spill on deck
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If,during helicopter refueling operations,fuel is spilled on clothing,the person should first（）.
A . see the medic immediately
B . spray hinself with foam or CO
C . complete his task and then see medic
D . remove the clothing and wash
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The ash content of a fuel oil is significant to the operating engineer because it （）
A . is an indication of the amount of noncombustible material present in the oil
B . indicates the quantity of energy released by burning a unit amount of the fuel
C . is useful for determining proper atomization temperatures
D . reflects the overall thermal efficiency of the fuel oil service system
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What color exhaust will be exhibited when a slow speed two-stroke/cycle main propulsion diesel engine, designed to operate on light and heavy fuel oil, is operated on insufficiently preheated heavy fuel oil?（）
A . White
B . Black
C . Blue
D . Clear
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When considering the lowest fuel system operating temperature, （） are important.
A . specific gravity or relative density
B . open flash point and closed flash point values
C . higher calorific and lower calorific values
D . cloud point and pour point value
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During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.
A . ensure penetration and distribution of the fuel in the combustion chamber
B . ensure the needle valve is flushed clean during each injection
C . prevent combustion gas blowback into the open needle valve
D . prevent reflected pressure waves when the needle valve close
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What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
A . Spark plug
B . Heat of compression
C . Carburetor
D . Glow ping
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（）is known as a long hatch during loading operation．
A、 the largest hatch of a ship
B、 the hatch that is double rigged
C、 the hatch where a disproportionate amount of cargo is stowed.
D、 the hatch where the most cargo is stowed.
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If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
A . see the medic immediately
B . spray himself with foam or CO
C . complete his task and then see the medic
D . remove the clothing and wash
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Which statement is FALSE concerning precautions during fueling operations?（）
A . All engines，motors，fans，etc. should be shut down when fueling
B . All windows，doors，hatches，etc. should be closed
C . A fire extinguisher should be kept nearby
D . Fuel tanks should be topped off with no room for expansio
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The soot blowers are operating in the oil fuel boiler the air/fuel ratio must （） throughout the action, and blowers greased after use.
A . be increased
B . be decreased
C . remain constant
D . either be increased or remain constant
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Faulty operation of diesel engine fuel injection nozzles can be directly caused by （）.
A . water in the fuel oil supply
B . excessive fuel nozzle holder cooling
C . a distorted fuel spray pattern
D . leakage past the plunger into the oil drai
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Faulty operation of diesel engine fuel injection nozzles can be a direct cause of（）.
A . excessive fuel nozzle holder cooling
B . sediment in the fuel supply
C . distortion of the fuel spray pattern
D . improper atomization of the fuel
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Engines for lifeboats are required to have sufficient fuel to operate for how many hours?（）
A . 6 hours
B . 12 hours
C . 18 hours
D . 24 hour
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If fuel oil were being discharged from the waster outlet of a fuel oil disk type centrifuge, operated as separator, you should（）
A . remove the discharge ring
B . re-prime the purifier
C . the centrifuge to its proper speed
D . install an additional discharge ring
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The temperature of the fuel oil received during bunkering operations is critical in determining the（）
A . expansion space to leave in a tank
B . flash point at which the fuel will burn
C . temperature to which the fuel must be heated
D . rate at which the fuel can be pumped during transfer operatio
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During fueling, all doors. Hatches,and ports（）.
A . to windward should be opened and the ones to leeward should be closed
B . to leeward should be opened and the ones to windward should be closed
C . should be opened
D . should be closed
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To avoid excessive pressures in the fuel oil filling system during bunkering, you should （）.
A . close the tank filling valves quickly
B . top off all tanks at the same time
C . rill completely all tanks to less than 95% full
D . reduce the loading rate when topping off
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During working, when the piston is near the （）, the air ignites the fine spray of fuel.
A . TDC
B . DTC
C . BDC
D . BCD
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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
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Yuthachai fuel is welcomed by both farmers and ferry operators for its low prices．
A. Right
B. Wrong
C. Not mentioned
