单选题When a crankshaft （） outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.Ahas to be handledBmay be handledChas being handledDwill be handling
单选题
When a crankshaft （） outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.
A
has to be handled
B
may be handled
C
has being handled
D
will be handling
参考解析
解析：
暂无解析
相关考题：
A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.A.corrosion at low engine loadsB.erosion at high engine loadsC.overload at high engine loadsD.scaling at all exhaust temperatures
A mortgagee only ______ entitled to all the freight which the ship is in the course of earning，when his possession of the ship comes into being．A.sustainsB.maintainsC.becomesD.has
Which is true when describing a connection replication in Cisco ACE？（）A、 It is not supported for SSL connections.B、 It is not supported for non-SSL connections.C、 It can only be configured manually.D、 It has a maximum limit of 50，000 replicated connections.
The carrier has to take care of the risk of freight payments by the individual shippers when handling LCL shipments.
A systems administrator has a high performance server with a file share full of data that has not been used in a long time， but is still important and might be used in the future. Which of the following should they do to reclaim the space off the high performance server？（）A、Audit the dataB、Delete the dataC、Back up the dataD、Archive the data
A technician has a laptop that is running slow and notices the fan is on high. Which of the following should the technician try FIRST?（）A、Clean the heatsink assembly of debris.B、Turn the fan off when the AC adapter is attached.C、Turn the fan to low in the BIOS.D、Replace the processor and fan.
A new application has been added to a system which needs to automatically be started at system startup. The system administrator has decided to accomplish this by using the /etc/inittab file. Which command would be used to accomplish this in a supported manner？（）A、viB、mkitabC、telinitD、startsrc
单选题A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?（）AThe low may suddenly deepen，and the cyclone intensify and pick up speedBThe left semicircle may become the dangerous semicircleCThe low and the high may merge and cancel out the weather characteristics of eachDThe high may force the cyclone to reverse its track
单选题To determine the main bearing clearance of a propulsion diesel engine, you should measure the main bearing shell using a ball anvil outside micrometer and measure the crankshaft journal using a/an （）AtelescopingBring ‘snap’ gaugeCinside vernier caliperDoutside micrometer
单选题Fuel has to be injected into the engine at a high pressure so that it （） correctly.Ais purifiedBin timedCis compressedDatomizes
单选题When using a buoy as an aid to navigation which of the following should be considered?（）AThe buoy should be considered to always be in the charted locationBIf the light is flashing，the buoy should be considered to be in the charted locationCThe buoy may not be in the charted positionDThe buoy should be considered to be in the charted position if it has been freshly painted
单选题A systems administrator has a high performance server with a file share full of data that has not been used in a long time， but is still important and might be used in the future. Which of the following should they do to reclaim the space off the high performance server？（）AAudit the dataBDelete the dataCBack up the dataDArchive the data
单选题If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?（）AThe cylinder indicator cocks should be openedBThe sump lube oil scavenge pump should be secured immediatelyCThe explosion relief valves should be manually openedDThe crankcase should remain unopened until the engine has cooled
单选题As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）AExhaust temperaturesBRaw water pressureCLube oil pressureDAir box pressure
单选题When a student has something in his mind and he should ignore the irrelevant parts when reading, which of the following strategies can be used? _____AskimmingBdetailed readingCscanningDpredicting
单选题Which is true when describing a connection replication in Cisco ACE？（）A It is not supported for SSL connections.B It is not supported for non-SSL connections.C It can only be configured manually.D It has a maximum limit of 50，000 replicated connections.
单选题A twin screw craft being used to pick up a person who has fallen overboard from a vessel should approach if you（）.Areverse port engine, apply right rudderBreverse port engine,rudder amidshipsCreverse starboard engine, apply right rudderDrevers starboard engine, rudder amidships
单选题If a diesel engine has been stopped because of piston seizure due to severe overheating, the crankcase（）Ainspection covers should not be opened until the engine has cooledBventilation system should be continued in operation for one hour for coolingCscavenge pump should be immediately secured to prevent loss of lube oilDexplosion covers should be opened slightly to provide extra ventilation
单选题A survival craft being used to pick up a person who has fallen overboard from a ship should approach the person（）.Aat a high rate of speedBunder oarsCagainst the windDwith the wind
单选题The lockmaster has given you permission to tie off on the lower guide wall to wait your turn to lock through. What should you be most concerned with? （）AA downbound vesselBAn upbound vesselCCurrent reaction when the lock chamber is being emptiedDCurrent reaction when the lock chamber is being filled
单选题（） may be the first possible cause which makes the engine to lose power or slow down when it is running.AHot bearingBStarting valvesCUnequal distribution of loadDExcessive crankshaft clearance
单选题When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should（）Aincrease the starting air pressureBuse a higher than normal cranking speedCincrease the fuel injection pressureDuse a fuel having a lower ignition temperature
单选题The crankshaft of diesel engine is supported by （）.Atension stretchBtie rodsCthrough boltsDmain bearings
单选题When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.AcompressingBinterposingCimposingDpounding
单选题A technician has a laptop that is running slow and notices the fan is on high. Which of the following should the technician try FIRST?（）AClean the heatsink assembly of debris.BTurn the fan off when the AC adapter is attached.CTurn the fan to low in the BIOS.DReplace the processor and fan.
单选题Why should you wear a self-contained breathing apparatus before entering the engine room after the fixed CO2 system has been discharged to combat a major fire?（）ABecause carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiationBBecause carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gasCBecause carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gasDThis action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless gas
单选题A new application has been added to a system which needs to automatically be started at system startup. The system administrator has decided to accomplish this by using the /etc/inittab file. Which command would be used to accomplish this in a supported manner？（）AviBmkitabCtelinitDstartsrc