The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a ______．A.Suction endB.StrainerC.Bell-mouthD.Vacuum valve
The fitting at the end of a cargo line in a tank that allows suction to be taken close to the bottom of a tank is a ______．
A.Suction end
B.Strainer
C.Bell-mouth
D.Vacuum valve
相关考题：
写出下列程序的运行结果【】。include .include include void ma 写出下列程序的运行结果【 】。include ＜iostream.h＞.include ＜fstream.h＞include ＜stdlib.h＞void main(){fstream outfile, infile;outfile.open("data.clat", ios:: out);if(!outfile){cout＜＜"Can't open the file."＜＜end1;abort();}outfile＜＜" 1234567890"＜＜end1;outfile＜＜"aaaaaaaaa"＜＜end1;outfile＜＜"**********"＜＜end1;outfile.close();infile.open("data. dat ", ios:: in);if(!infile){cout＜＜"Can't open the file."＜＜end1;abort();}char line[80];int I=0;while(!infile. eof()){I++;infile.getline(line, sizeof(line));cout＜＜I＜＜":"＜＜line＜＜end1;}infile.close();}
In Cargo Survey，T．C．V．refers to ______．A.total calculated volumeB.terminal cargo volumeC.tank cargo valveD.tolerance of cargo valve
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil ________．A.The loading dockB.The midpoint of the bargeC.Within 25 feet of the pump engineD.Above the forward rake end
______ shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions．A.A load on top systemB.Direct line systemC.Circle line systemD.An inert gas system
Before discharge of cargo tank ballast is undertaken，______．A.the deck isolating valve is openB.flue gas isolating valveC.blower suction valveD.blower discharge valve
If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will ______．A.increaseB.decreaseC.stopD.remain constant
What is the purpose of pressure-vacuum relief valves ________．A.Regulation of discharge pressure from cargo pumpsB.Maintaining constant velocity in cargo linesC.Regulation of suction head on cargo pumpsD.To maintain a tank or void at atmospheric pressure
What is the purpose of the relief valve of a cargo pump ________．A.Provides for the removal of vaporsB.Allows two or more tanks to be filled at the same timeC.Provides for the emergency shutdown of the pumpD.Permits the return of cargo to the suction side of the pump
Which statement about inert gas pressures in a cargo tank is TRUE ________．A.The pressures of the inert gas in the tank may create excessive pressure at the pump while dischargingB.Gas pressures should be maintained at the highest permissible level throughout the discharging processC.High gas pressures may cause pyrophoric oxidation in the tankD.High gas pressures may cause loss of suction when stripping
You are on a tanker designed to carry molten sulfur．Which statement is TRUE ________．A.There must be two portable toxic vapor detectors on boardB.The cargo tank ventilation system must maintain the H2S vapor concentration at 1.85% or more by volumeC.Cargo temperature may be taken by portable thermometersD.The pressure in the heating coils in the tanks must be less than that of the cargo exerted on them
Where do fatigue failures of wire rope mooring lines usually occur ________．A.In the middle part of the line lengthB.Near the socketed end fitting adjacent to the anchorC.At the point where the line touches the bottomD.At the place the anchor buoy is attached to the line
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
单选题0il product samples should be taken from the（）.Adock riserBships cargo tanksCshore tank dischargeDAll of the above
单选题Your vessel is taking on bunkers from a shore side facility, if oil begins flowing from one tank vent, which of the following actions should be taken FIRST?（）AOpen the intake valve to an adjacent tankBSet out drip pans and sawdust and begin to mop up the spillCSignal the shore control point to shutdownDClose the valve on the tank vent line
单选题What is the purpose of pressure-vacuum relief valves? （）ARegulation of discharge pressure from cargo pumpsBMaintaining constant velocity in cargo linesCRegulation of suction head on cargo pumpsDTo maintain a tank or void at atmospheric pressure
单选题In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.Alube oil pump suction lineBlube oil pump discharge lineCbottom of the lube oil sumpDoutlet from the lube oil header
单选题The term "load on top" is used on many crude oil carriers, is to provide a method for （）.Acalculating the ullage in the cargo tanksBloading ballast by gravityCthe loading of new cargo into the slop tank as a procedure to minimize pollutionDcalculating the ratio of cargo expansion in a cargo tank
单选题If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）.AincreaseBdecreaseCstopDremain constant
单选题The outlet from an expansion tank of a closed freshwater cooling system should be piped to the （）.Acylinder head water outlet headerBcylinder jacket inlet mainCheat exchanger inlet connectionDjacket water pump suction line
单选题The lubricating oil is pumped from the drain tank, very often with （） in the suction line.Aa filterBa strainerCa magnetic filterDa fine strainer
单选题What action must be taken when an individual cargo tank is closed off from the inert gas system by the tank isolation valve?（）AThe tank must be gas freedBThe tank must be ballastedCThe tank must be vented to the atmosphereDThe bypass valve must also be closed
单选题A relief valve for a cargo pump is generally installed（）.Aafter the discharge valveBbetween the pump and discharge valveCafter the suction valveDbetween the pump and suction valve
单选题The static suction head of is the （）Adistance of the suction liquid level above the line of the pumpBdistance the suction liquid level is below the center line of the pumpCforce necessary to overcome frictional losses in the pump and pipingDamount in inches of mercury the total suction head is below atmospheric pressure
单选题Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）Acorrosion on the gearsBexcessive gear speedCdirt in the oilDmisalignment of the gears
单选题Oil product samples should be taken from the（）.Adock riserBship's cargo tanksCshore tank dischargeDAll of the above
单选题（）shall be provided in every cargo tank and slop tank in accordance with the appropriate Resolutions.AA load on top systemBDirect line systemCCircle line systemDAn inert gas system
单选题Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.AThe loading dockBThe midpoint of the bargeCWithin 25 feet of the pump engineDAbove the forward rake end