单选题The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for（）.Aall the spaces of a vesselBall cargo spacesCthe engine room and largest cargo spaceDthe space requiring the largest amount
单选题
The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for（）.
A
all the spaces of a vessel
B
all cargo spaces
C
the engine room and largest cargo space
D
the space requiring the largest amount
参考解析
解析：
暂无解析
相关考题：
The ___________ of gases such as carbon dioxide should be stabilized at their present level. A、emissionB、emitC、radiationD、evaporation
Theoretical perfect combustion in a diesel engine yields by-products of_____.A.aldehydes and carbon dioxideB.water vapor and carbon monoxideC.nitrogen and carbon monoxideD.water vapor and carbon dioxide
A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by ______.A.one controlB.two controlsC.three controlsD.none of the above
In the event of fire in a machinery space，______.A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failedB.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishmentC.water in any form should not be used as it will spread the fireD.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
What could result in an incorrect oxygen concentration reading on the oxygen indicator ________．A.Exposure to carbon dioxide for no more than 1 minuteB.Exposure to carbon dioxide for more than 10 minutesC.Exposure to a very low concentration of sulfur dioxide for no more than 2 minutesD.None of the above
The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．A.Forming a cloud cover over the flamesB.Directing the gas at the base of the flames in a slow sweeping motionC.Discharging the carbon dioxide into the heart of the flamesD.Bouncing the discharge off an adjacent bulkhead just above the burning surface
______, as the chemical extinguisher agent, should be used for an electric fire.A.dry chemical or foamB.foam or soda acidC.carbon dioxide or foamD.carbon dioxide or dry chemical
An advantage of an ABC dry chemical over a carbon dioxide fire extinguisher is ______.A.lack of toxicityB.the multipurpose extinguishing abilityC.burn-back protectionD.cooling ability
单选题Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?（）AAlcohol foamBDry chemicalCChemical foamDWater fog
单选题A fuel line breaks, sprays fuel on the hot exhaust manifold, and catches fire. Your first action should be to（）.ABatten down the engine roomBstart the fire pumpCapply carbon dioxide to the fireDshut off the fuel supply
单选题An advantage of an ABC dry chemical over a carbon dioxide extinguisher is（）.Alack of toxicityBthe multipurpose extinguishing abilityCburn-back protectionDcooling ability
单选题The remote control for a fixed fire extinguishing system should be（）.Apainted red and labeledBconcealed from the crewCprotected by plexiglassDpadlocked
单选题The danger associated with using carbon dioxide in an enclosed space is（）.AfrostbiteBskin burnsCasphyxiationDan explosive reaction
单选题For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent （）.AClass A and class BBClass B and class CCClass A and class CDClass C, class D, and class E
单选题Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to（）.Aflashing pointBcombustion pointCauto-ignition pointDlower explosive limit
单选题As compared to carbon dioxide,dry chemical has which advantage?（）.ACleanerBEffectiveCGreater rangeDMore cooling effect
单选题Controls for a fixed carbon dioxide system shall be mounted（）.Adirectly outside the space protected by the systemBas near the gas cylinders as possibleCin the pilothouseDon the main deck near the bow
单选题A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.Aone controlBtwo controlsCthree controlsDnone of the above
单选题Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?（）AThe agent is considered nontoxic at room temperature in low concentrationsBThe agent is less effective than carbon dioxideCHalon primarily extinguishes the fire by coolingDThe agent cannot be used on electrical fires because it leaves a residue
单选题Theoretical perfect combustion in a diesel engine yields by-products of （）.Aaldehydes and carbon dioxideBwater vapor and carbon monoxideCnitrogen and carbon monoxideDwater vapor and carbon dioxide
单选题What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）AEffective even if ventilation is not shut downBWill not deteriorate in storageCNon-corrosiveDEffective on electrical equipment
单选题Which of the listed extinguishing agents is NOT suitable for fighting a liquid paint fire?（）ADry chemicalBFoamCWaterDCarbon dioxide
单选题Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?（）ACarbon dioxide is corrosive when exposed to fireBCarbon dioxide should be applied slowly to a large engine room fireCIts total cooling effect is far greater than waterDIts smothering effect is excellent for class B fires
判断题Natural systems can reduce the amount of carbon dioxide in the atmosphere caused by carbon emissions.A对B错
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When used to fight fire，carbon dioxide（）.Ais effective if used promptly on an oil fireBhas a greater cooling effect than waterCis lighter than airDis harmless to cargo and crew
单选题On a ship，a fixed carbon dioxide or other approved system must be installed（）.Awhere oil or chemical drums are storedBin all battery storage locationsCin paint lockersDin all of the above locations