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单选题
The amount of lubricating oil in the drain tank should be checked by （）.
A
measuring
B
sounding rod
C
metering
D
weighting
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In the following statements about the principle of the low level controlling, which is WRONG? 0
A.Low level is monitored on the drain tank and header tank.B.If there is high differential the filters pressure across the circulatingpumps is alarmedC.The lubricating oil purifier cannot take oil from the drain tankD.If the sea water pressure falls, this also operates an alarm
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Main engines as well as auxiliary engines operating on heavy fuel should have continuousoon the lubricating oil, either according tothebypass or batch principles
A.filteringB.centrifugingC.depositingD.operating
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( )is monitored on the drain tank and header tank by magnetic switches with a 20seconds delay to prevent false alarms due to surging
A.Low pressure of the lubricating oilB.Low level of the lubricating oilC.High temperature of the lubricating oilD.High temperature of the cooling water
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Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.A.over-speed tripB.audible/visual alarmC.the ships/boats general alarmD.reserve oil storage tank
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You have completed a crude oil wash．What action should be taken with the oil in the lines running to the washing machines ________．A.Open a COW nozzle forward and one aft and drain the line into the after tank by gravityB.Blow the line out using compressed airC.Pull a suction using the supply line pumpD.Close off all valves in the system and leave the oil in the line primed for the next crude oil wash
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单选题If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off, the engineer should （）.A
close the static leg filling valveB
close the overflow tank falling valveC
reduce the fuel oil pumping rateD
stop the fuel oil pumping operation
考题
单选题The remaining oil in the lubricating pipes and ducts should be blown out with （）.A
atmosphereB
the fresh waterC
compressed airD
chemical compounds
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单选题Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.A
open the bypass lineB
cut in the lube oil coolerC
pressurize the lube oil systemD
top off the expansion tank
考题
单选题（） is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank.A
A filterB
A centrifugeC
A distillerD
A generator
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单选题When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.A
filter to remove the fuel oilB
use the settler to remove the fuel oilC
remove the fuel oil by centrifugingD
drain and then renew the lube oil supply
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单选题Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?（）A
Exhaust temperatureB
Lube oil levelC
Lube oil pressureD
Water level in the expansion tank
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单选题To receive oil residues from the purification of fuel and lubricating oils in the machinery spaces, what kind of tank(s) should be provided on board?（）A
bilge tankB
sludge tankC
overflow tankD
oil collecting tank
考题
单选题Which of the actions listed should be taken FIRST to control an oil fire in a fuel oil tank?（）A
Commence draining that tank as quickly as possibleB
Seal off all vents to that tankC
Activate the CO2 system to that tankD
Shut off the steam heating coils
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单选题Lubricating oil for an engine is stored at the bottom of the （）, known as the sump or in a drain tank located beneath the engine.A
sea cheatB
air receiverC
crankcaseD
water box
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单选题Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an （）.A
overspeed tripB
audible/visual alarmC
the ships/boats general alarmD
reserve oil storage tank
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单选题Main engines as well as auxiliary engines operating on heavy fuel should have continuous on the lubricating oil, either according to the bypass or batch principles（）A
filteringB
centrifugingC
depositingD
operating
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单选题The lubricating oil is pumped from the drain tank, very often with （） in the suction line.A
a filterB
a strainerC
a magnetic filterD
a fine strainer
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单选题A vessel loads edible oil in a deep tank through a manhole at the midlength of the tank. In order to fill the tank to maximum capacity，what trim should the vessel have?（）A
Down by the bowB
Down by the sternC
Down by either the bow or sternD
In level trim
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单选题The （）should be kept running for about half an hour after FWE.A
crankcase lubricating oil pumpB
fuel oil pumpC
air compressorD
auxiliary blower
考题
单选题When fueling has been completed（）.A
the fuel tank fill pipe should be left open to allow vapors to vent from the tankB
the engine should be started immediately to prevent vapor lock in the fuel lineC
all hatches should be opened and all compartments should be ventilatedD
open the fuel line and drain a small amount of gasoline into the bilge to clear the line of sediment
考题
单选题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 receivedB
flash point of the fuel as it is receivedC
fuel temperature as it is receivedD
viscosity of the fuel being received
考题
单选题The piston cooling system may employ similar components, except that a drain tank is used instead of a head tank That means this system （）.A
doesnt use a drain tank but a head tankB
uses a drain tank not head tankC
uses a drain tank and a head tankD
uses neither a drain tank nor a head tank
考题
单选题The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.A
specific gravityB
viscosityC
S E numberD
hydrolytic stability
考题
单选题Oil product samples should be taken from the（）.A
dock riserB
ship's cargo tanksC
shore tank dischargeD
All of the above
考题
单选题The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.A
a strain tankB
a head tankC
a service tankD
a strainer
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单选题How often should the lubricating oil of a diesel engine be changed?（）A
After every tripB
Every 4000 hoursC
According to manufacturer’s instructionsD
Every time they are shutdown
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单选题There should be a lubricating oil （） between the main beatings and the crankshaft.A
filmB
capC
lacquerD
shell
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