The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than _____ of the total bilge pumping capacity.A.one-thirdB.two-thirdsC.one-fourthD.two-fourths
The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than _____ of the total bilge pumping capacity.
A.one-third
B.two-thirds
C.one-fourth
D.two-fourths
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_____ allows for expansion and water make up in the water cooling system.A.A top tankB.A head tankC.A head valveD.A drain tank
You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol?A.Hose connections to the tank must be made with a minimum of three boltsB.There must be water pressure on the fire mainC.You must shut down if another vessel comes alongsideD.If transferring at anchor，you must display a red flag by day and a red light at night
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单选题During loading and discharging operations，in addition to when the cargo tanks have been properly filled，each inert gas system must be capable of maintaining a minimum gas pressure of（）.A150 millimeters of water pressureB125 millimeters of water pressureC100 millimeters of water pressureD75 millimeters of water pressure
单选题The inability to supply a cargo of the contractual quantity in the country of shipment（）the doctrine of frustration into operation.Ais capable of bringingBis sufficient to bringCis not capable of bringingDis probally to bring
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单选题Which of the following statements represents the advantage of rotary pumps as compared to reciprocating pumps?（）AThe high discharge pressure of the rotary pumps permits a larger volume of fluid per unit time than the reciprocating pumpBRotary pumps are capable of pumping more fluid than reciprocating pumps of the same weightCRotary pumps occupy only one-half the space of reciprocating pumpsDRotary pumps eliminate discharge slippage of the pumped liquid, while this does not hold true for a reciprocating pump
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单选题Crude oil washing of cargo tanks has the following advantages except for （）Areducing the erosion of the cargo tanksBincreasing the total quantity of oil to carryCreducing the quantity of water contained in oilDreducing cargo discharged time
单选题The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by （）.AClassification Society RulesBNational requirementsCThe IMO International Convention for the Safety of Life at SeaDAll of the above
单选题When fire pumps are used for other than firefighting service，each pipe connecting the other service (except for branch lines used for deck washing) must have a（）.Acheck valve installed in the lineBshut off valve at a manifold near the pumpCquick disconnect union within ten feet of the pumpDregulator in the line set at 125 psi
单选题The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than （） of the total bilge pumping capacity.Aone-thirdBtwo-thirdsCone-fourthDtwo-fourths
单选题Multiple fire pumps may be used for other purposes provided that one pump is（）.Aon line to the fire mainBkept available for use on the fire main at all timesCcapable of being connected to the fire mainDrated at or above 125 psi
单选题Machinery driving fuel oil transfer and fuel oil service pumps must be fitted with a remote means of stopping the machinery from （）.Awithin the space concernedBoutside the space concernedCthe throttle stationDwithin the fire room
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单选题A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.Afire hose might be damaged by cargo operationsBvessel is in portCfire-main system is not chargedDfire pumps are used for purposes other than supplying water to the fire main
单选题The total quantity of oil discharge into the sea（）for existing tankers 1/15000 of the total quantity of the particular cargo or which the residue formed a part（）.Adoes not exceedBshould exceedCshould be up toDshould be no more than
单选题All portable fire extinguishers must be capable of being（）.Acarried by hand to a fireBcarried or rolled to a fireCrecharged in the fieldDused on class 'B' fires
单选题When water is used to fight a fire on board a ship，the effect of the weight of the water must be taken into account. How much sea water will increase the weight displacement by one ton?（）A64 cubic feetB35 cubic feetC100 gallonsD500 liters
单选题A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.Aa low velocity spray applicatorBa water spray or solid streamCat least two spray patterns of waterDat least 25 psi delivered pressure
单选题When jumping into water upon which there is an oil-fire，you should（）.Abreak the water surface with your hands when diving head-firstBuse your hands to hold your knees to your chestCcover your eyes with one hand while pinching your nose shut and covering your mouth with the otherDenter the water at the bow or stern on the windward side of the vessel