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
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：
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
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
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
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
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
单选题Excessive lube oil consumption by a reciprocating air compressor can be caused by （）.Ausing a slightly dirty air filterBusing oil having an excessive viscosityCintercooler or after-cooler leaksDcarrying the oil level higher than normal
单选题Lube oil accumulating in the cooling water system of a diesel engine will result in （）Alube cooler failureBpoor heat transferCmechanical lubricator failureDcamshaft seizure
单选题The lube oil cooler is located after the lube oil filter in order for （）Athe filter to operate more efficientlyBthe lube oil cooler to be bypassedCpositive lube oil pump suction to be assuredDgalvanic action in the cooler to be minimized
单选题In which of the listed hydraulic systems will the installation of an oil cooler be necessary?（）AConstant tension mooring winch systemBHatch cover systemCWatertight door systemDInternal combustion engine hydraulic starter system
单选题Under normal conditions, the main source of crankcase oil contamination is attributed to （）Ametal particles loosened by wearBair when air cleaners are not usedCcondensation of water vaporsDbreakdown of the lubricating oil by dilution
单选题Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an （）.Aoverspeed tripBaudible/visual alarmCthe ships/boats general alarmDreserve oil storage tank
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.AThe fuel oilBThe lube oilCThe sea waterDThe fresh water
单选题Which of the following statements is true concerning an oil cooler?（）AThe oil temperature is less than the cooling water temperatureBThe oil pressure is less than the cooling water pressureCThe oil pressure is greater than the cooling water pressureDThe oil flow control valve is always installed in the oil input line
单选题If an emergency pump control is used as the emergency shutdown on a tank vessel，it must（）.Astop the flow of oil at the main deck manifoldBprevent the oil from leaving the shore facilityCprevent the oil from siphoning through the pumpDNone of the above
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（）.ATBN numberBviscosityCtemperatureDfoaming
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 （）.AoilBsea waterCrefrigerantDfresh water
单选题Lube oil in the fresh water cooling system of a diesel engine may result from a （）Acamshaft seizureBlube oil pump failureClube oil cooler failureDlube oil pump overflow
单选题To guarantee that a reduction gear bearing is receiving proper oil supply, you should check the （）Alube oil temperature at the cooler outletBlube oil strainer magnets bearingClube oil temperatureDlube oil pressure to the bearing
单选题If an emergency pump control is used as the emergency shutdown on a tanker，it must（）.Astop the flow of oil at the main deck manifoldBprevent the oil from leaving the shore facilityCprevent the oil from siphoning through the pumpDNone of the above
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.Aa sea water chestBa change-over chestCa buffer tankDa three-way valve
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 （）.AoilBsea waterCairDfresh water
单选题When the incinerator is stopped, which of the following is wrong?（）AAfter stopping supplying sludge oil, the value and pipe should be flushed by flushed by diesel oil and the incinerator continue burning for 10 minutesBClose auxiliary burner firstly and then close main burnerCAfter stopping fuel, restoring the position of main fuel supply valveDStop blower as soon as stopping supplying fuel oil
单选题Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.Atwo fuel oil transfer pumps provided where one is to be independent of the main engineBtwo fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engineCengine driven transfer pumps and only used in constant speed applicationsDthe capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
单选题What is the function of the after-cooler installed in the diesel engine air intakes system?（）ADecrease the air densityBIncrease the exhaust temperatureCDecrease the lube oil temperatureDIncrease the air density
单选题Which of the following faults would allow lube oil to enter the cooling system of a diesel engine?（）AExcessive valve train lubricationBLeaking standby oil cooler coreCExcessive lube oil pressureDExcessive lube oil in the system
单选题There should be a lubricating oil （） between the main beatings and the crankshaft.AfilmBcapClacquerDshell