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吊机OIL COOLER MAIN/AUTO操作，表示（）。
- A、液压油冷却方式转换
- B、司机室制冷
- C、司机室加热
- D、司机室通风
参考答案
更多 “吊机OIL COOLER MAIN/AUTO操作，表示（）。A、液压油冷却方式转换B、司机室制冷C、司机室加热D、司机室通风” 相关考题
考题
Which of the following is NOT mentioned in this passage?A.There may be oil vapor in the engine roomB.Pipes and fittings may be damaged if explosion takes placeC.The cooler should be drainedD.Bursting caps must be fitted
考题
Lubrication for the main reduction gears used with diesel engines is usually supplied byA.oil from the main engine sumpB.an independent lube oil systemC.the stern bearing head tankD.the stem bearing sump tank
考题
In an auxiliary diesel engine bypass type lubricating oil system, the main lube oil pump forces_______ .A.all of the oil used by the engine through a filterB.some of the oil used by the engine through a filterC.some of the oil used by the engine through a centrifugeD.all of the oil used by the engine through a centrifuge
考题
The core item in the Oil Record Book Part I is ____, and its main content is____.A.Item A, BALLAST OR CLEANING OF FUEL OIL TANKSB.Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OIL TANKS REFERRED TO UNDER SECTION(A)C.Item C, DISPOSAL OF OIL RESIDUES(SLUDGE)D.Item H, BUNKERING OF FUEL OIL
考题
You are on a tanker discharging oil．When all of the oil that the main cargo pumps can handle is pumped out of a tank，the remainder is ______．A.Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumpsB.Stripped to one tank and then pumped out with the main pumpsC.Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumpsD.Gravitated to the centers from the wings and pumped out with the main pumps
考题
单选题Excessive lube oil consumption by a reciprocating air compressor can be caused by （）.A
using a slightly dirty air filterB
using oil having an excessive viscosityC
intercooler or after-cooler leaksD
carrying the oil level higher than normal
考题
单选题Lube oil accumulating in the cooling water system of a diesel engine will result in （）A
lube cooler failureB
poor heat transferC
mechanical lubricator failureD
camshaft seizure
考题
单选题The lube oil cooler is located after the lube oil filter in order for （）A
the filter to operate more efficientlyB
the lube oil cooler to be bypassedC
positive lube oil pump suction to be assuredD
galvanic action in the cooler to be minimized
考题
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）A
Constant tension mooring winch systemB
Hatch cover systemC
Watertight door systemD
Internal combustion engine hydraulic starter system
考题
单选题Under normal conditions, the main source of crankcase oil contamination is attributed to （）A
metal particles loosened by wearB
air when air cleaners are not usedC
condensation of water vaporsD
breakdown of the lubricating oil by dilution
考题
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
考题
单选题（） is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.A
The fuel oilB
The lube oilC
The sea waterD
The fresh water
考题
单选题Which of the following statements is true concerning an oil cooler?（）A
The oil temperature is less than the cooling water temperatureB
The oil pressure is less than the cooling water pressureC
The oil pressure is greater than the cooling water pressureD
The oil flow control valve is always installed in the oil input line
考题
单选题If an emergency pump control is used as the emergency shutdown on a tank vessel，it must（）.A
stop the flow of oil at the main deck manifoldB
prevent the oil from leaving the shore facilityC
prevent the oil from siphoning through the pumpD
None of the above
考题
单选题Scale and dirt accumulation in the waterside of a lube oil cooler will be indicated by a gradual increase in the lube oil（）.A
TBN numberB
viscosityC
temperatureD
foaming
考题
单选题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
oilB
sea waterC
refrigerantD
fresh water
考题
单选题Lube oil in the fresh water cooling system of a diesel engine may result from a （）A
camshaft seizureB
lube oil pump failureC
lube oil cooler failureD
lube oil pump overflow
考题
单选题To guarantee that a reduction gear bearing is receiving proper oil supply, you should check the （）A
lube oil temperature at the cooler outletB
lube oil strainer magnets bearingC
lube oil temperatureD
lube oil pressure to the bearing
考题
单选题If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.A
stop the flow of oil at the main deck manifoldB
prevent the oil from leaving the shore facilityC
prevent the oil from siphoning through the pumpD
None of the above
考题
单选题Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.A
a sea water chestB
a change-over chestC
a buffer tankD
a three-way valve
考题
单选题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
oilB
sea waterC
airD
fresh water
考题
单选题When the incinerator is stopped, which of the following is wrong?（）A
After stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutesB
Close auxiliary burner firstly and then close main burnerC
After stopping fuel, restoring the position of main fuel supply valveD
Stop blower as soon as stopping supplying fuel oil
考题
单选题Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.A
two fuel oil transfer pumps provided where one is to be independent of the main engineB
two fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engineC
engine driven transfer pumps and only used in constant speed applicationsD
the capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
考题
单选题What is the function of the after-cooler installed in the diesel engine air intakes system?（）A
Decrease the air densityB
Increase the exhaust temperatureC
Decrease the lube oil temperatureD
Increase the air density
考题
单选题Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）A
Excessive valve train lubricationB
Leaking standby oil cooler coreC
Excessive lube oil pressureD
Excessive lube oil in the system
考题
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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