Each hose used for transferring vapors must ______．A.have a design burst pressure of at least 25 psigB.be capable of withstanding at least 2.0 psi vacuum without collapsing or constrictingC.be electrically continuous with a maximum resistance of ten thousand ohmsD.All of the above
Each hose used for transferring vapors must ______．
A.have a design burst pressure of at least 25 psig
B.be capable of withstanding at least 2.0 psi vacuum without collapsing or constricting
C.be electrically continuous with a maximum resistance of ten thousand ohms
D.All of the above
相关考题：
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
Reid vapor pressure is ______．A.exerted by liquid cargo on the sides of a tankB.exerted by liquid cargo on a cargo hose bodyC.the lowest temperature and pressure that will cause a flammable liquid to give off vaporsD.a measurement of the amount of flammable vapors given off by a liquid at a certain temperature
Which statement is TRUE concerning cargo hose on tank barges ________．A.Cargo hose must be able to withstand the shut-off head plus the static head of the cargo pumpB.Cargo hose must be able to withstand the static head of the cargo pump but no less than 100 psiC.Cargo hose must be able to withstand the shut-off head less the static head of the cargo pump but no less than 100 psiD.Cargo hose must be able to withstand at least 150 psi
A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the ______．A.Fire hose might be damaged by cargo operationsB.Vessel is in portC.Fire-main system is not chargedD.Fire pumps are used for purposes other than supplying water to the fire main
If not attached to the nozzle, each low-velocity spray applicator on a vessel must be stowed__________.A.in a protected area on the main deckB.inside a machinery space near the entranceC.next to the fire hydrant to which the fire hose is attachedD.on a rack inside the quarters near the entrance
Poisonous vapors burst out of the factory during the accident,causing several hundred deaths.A:gases B:threatC:fuels D:bubbles
which one of the following accurately describes field names?（）A、they must be unique in a database B、they can only be used once in a view C、they can only used once on each form D、they can be used mulriple times on a form
Your company has a main office and 10 branch offices. Each office has a direct link to the Internet. Each branch office has a WAN link that connects to the main office. Your network consists of an Active Directory forest. Each office is configured as an Active Directory site. You plan to deploy an Exchange Server 2010 Hub Transport server in each site. You need to design a message routing solution to meet the following requirements： .Branch office connections to the Internet must be used to deliver e-mail .Branch office servers must use the WAN link to the main office to deliver e-mail to other branch offices.Branch office servers must be prevented from sending e-mail to the Internet by using the WAN link to themain office .The solution must minimize administrative overhead What should you include in the solution？（）A、one Send connector for each siteB、one SMTP site link for each siteC、two Send connectors for each siteD、10 Send connectors for each site
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You need to design the Service Broker queues that will be used to submit requests for long-running reports. Your solution must minimize complexity of using the queues by applications. What should you do?（）A、Specify one queue for each client application that can submit report requests.B、Specify one queue for each of the two report-generation services.C、Specify one queue for all long-running report requests.D、Specify eight queues：One for each service， and one for each client application.
单选题Reid vapor pressure is（）.Aexerted by liquid cargo on the sides of a tankBexerted by liquid cargo on a cargo hose bodyCthe lowest temperature and pressure that will cause a flammable liquid to give off vaporsDa measurement of the amount of flammable vapors given off by a liquid at a certain temperature
单选题Your company has a main office and 10 branch offices. Each office has a direct link to the Internet. Each branch office has a WAN link that connects to the main office. Your network consists of an Active Directory forest. Each office is configured as an Active Directory site. You plan to deploy an Exchange Server 2010 Hub Transport server in each site. You need to design a message routing solution to meet the following requirements： .Branch office connections to the Internet must be used to deliver e-mail .Branch office servers must use the WAN link to the main office to deliver e-mail to other branch offices. .Branch office servers must be prevented from sending e-mail to the Internet by using the WAN link to themain office .The solution must minimize administrative overhead What should you include in the solution？（）Aone Send connector for each siteBone SMTP site link for each siteCtwo Send connectors for each siteD10 Send connectors for each site
单选题You are on a cargo vessel carrying toluol in bulk in portable tanks. Which is a requirement for pumping the toluol? （）AHose connections to the tank must be made with a minimum of three boltsBThere must be water pressure on the fire mainCYou must shut down if another vessel comes alongsideDIf transferring at anchor，you must display a red flag by day and a red light at night
单选题which one of the following accurately describes field names?（）Athey must be unique in a database Bthey can only be used once in a view Cthey can only used once on each form Dthey can be used mulriple times on a form
单选题Each hose in the fuel transfer system for helicopter refueling must have a（）.Astatic grounding deviceBquick-disconnect nozzleCsplash guardDvapor recovery system
单选题During the fuel injection period, fuel pressure must exceed cylinder gas pressure to （）.Aensure penetration and distribution of the fuel in the combustion chamberBensure the needle valve is flushed clean during each injectionCprevent combustion gas blowback into the open needle valveDprevent reflected pressure waves when the needle valve closes
单选题The design of for a flash type evaporator is of critical importance because it must provide an optimum feedwater spray pattern that facilitates the flashing process, and it must also maintain a pressure differential between successive stages（）AcondenserBflashing deviceClashing deviceDvacuum pump
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To maintain design discharge pressure from a centrifugal pump, the design clearance must be maintained between the （）.Ashaft and impellerBmotor and pump shaftCcasing and impeller wearing ringsDlantern ring and impeller
单选题Flexible hose under pressure in a hydraulic system will （）.Atend to twist about its long axisBexpand in length and in diameterCcontract in length and expand in diameterDflex at right angles to the applied pressure
单选题Each fire hose coupling on a ship must have threads that meet the specifications of the（）.AAmerican Petroleum InstituteBNational Standard Fire hose CouplingCAmerican Society of Mechanical EngineersDUnderwriter's Laboratories，Inc
单选题Each fire hose coupling on a ship must have threads that meet the specifications of the（）.AAmerican Petroleum InstituteBNational Standard Firehose CouplingCAmerican Society of Mechanical EngineersDUnderwriter's Laboratories，Inc
单选题According to regulations，a cargo hose used for transferring liquefied gases must have a bursting pressure of（）.A5 times the maximum working pressure on the hose during cargo transferBone half the designed working pressureC4 times the pressure of the cargo pump used for transferringD5 times the minimum working pressure on the hose during cargo transfer
单选题Each hose used for transferring vapors must（）.Ahave a design burst pressure of at least 25 psigBbe capable of withstanding at least 2.0 psi vacuum without collapsing or constrictingCbe electrically continuous with a maximum resistance of ten thousand ohmsDAll of the above
单选题Each fire pump on a ship must have a pressure gauge located at（）.Athe pump dischargeBthe manifold connectionCeach fire station dischargeDthe pump station
单选题If not attached to the nozzle,each low-velocity spray applicator on a vessel must be stowed（）.Ain a protected area on the main deckBinside a machinery space near the entranceCnext to the fire hydrant to which the fire hose is attachedDon a rack inside the quarters near the entrance
单选题Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.AFederal Aviation AdministrationBCorps of EngineersCNational Fire Protection AssociationDNational Transportation Safety Board