单选题What does the term head mean when applied to a fire pump?（）ALength of the discharge pipeBHeight of the discharge pipeCDifference between the discharge and suction pressuresDSum of discharge and suction pressures
单选题
What does the term head mean when applied to a fire pump?（）
A
Length of the discharge pipe
B
Height of the discharge pipe
C
Difference between the discharge and suction pressures
D
Sum of discharge and suction pressures
参考解析
解析：
暂无解析
相关考题：
What is the term "ordered control" mean regarding how MPLS LSPs are established?() A. establish starting at the egress router going back to the ingress routerB. establish starting at the ingress router going downstream to the egress routerC. establish when a router learns of a new prefixD. establish when the path correctly matches the reverse path forwarding check
A routing policy has three terms and the first term of the policy does not contain a terminating action. What will become of the routes after they have been evaluated by the first term?() A.In the absence of a terminating action, all routes are accepted.B.The route will be evaluated by the second term in the policy.C.The default action will be applied.D.In the absence of a termination action, all routes are rejected.
During a fire drill on a vessel, what action is required? ______.A.Start each fire pump.B.Launch and run a lifeboat.C.Inventory rescue and fire equipment.D.Inspect fire hoses
When we use the word（）we mean that an idea or theory is being applied: that whatever the teacher does, certain theoretical principles are always borne in mind.
What does the mac packet-classify command do when applied to an interface configuration？（）A、 It enables MAC ACLs to be applied to only IP packets that enter the interface.B、 It enables MAC ACLs to be applied to only non-IP packets that enter the interface.C、 It enables MAC ACLs to be applied to all packets that enter the interface.D、 It enables MAC ACLs to be used for QoS settings.
A routing policy has three terms and the first term of the policy does not contain a terminating action. What will become of the routes after they have been evaluated by the first term?（）A、In the absence of a terminating action, all routes are accepted.B、The route will be evaluated by the second term in the policy.C、The default action will be applied.D、In the absence of a termination action, all routes are rejected.
单选题What does it mean when a smoke alarm rings at home?AYou have to get up.BWater is running to the floor.CSomething is burning.DSomeone breaks your window.
单选题When loading bulk liquid cargo，what is the FIRST action you should take if a cargo valve jammed open?（）ATrip the pump relief valveBOrder the dock man to shut downCCall the owner，operator，or terminal supervisorDRun out the vessel's or terminal's fire hose
单选题A routing policy has three terms and the first term of the policy does not contain a terminating action. What will become of the routes after they have been evaluated by the first term?（）AIn the absence of a terminating action, all routes are accepted.BThe route will be evaluated by the second term in the policy.CThe default action will be applied.DIn the absence of a termination action, all routes are rejected.
单选题During a fire drill on a vessel, what action is required？（）AStart each fire pumpBLaunch and run a lifeboatCInspect fire hosesDClose each fire pump
单选题In describing engine operation, what does the term “cycle” mean?（）AThe sequence of events that produce a power pulseBOne rotation of the engine crankshaftCOne stroke of a pistonDAll of the above
填空题When we use the word（）we mean that an idea or theory is being applied: that whatever the teacher does, certain theoretical principles are always borne in mind.
单选题A pump is said to have "negative suction head" when the pump is located （）.Abetween the suction and dischargeBbelow the liquid supplyCabove the liquid supplyDany of the above
单选题What is the term "ordered control" mean regarding how MPLS LSPs are established?（）Aestablish starting at the egress router going back to the ingress routerBestablish starting at the ingress router going downstream to the egress routerCestablish when a router learns of a new prefixDestablish when the path correctly matches the reverse path forwarding check
单选题When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）ASecure all engine room doors，hatches，and ventsBClose the fuel line valveCCheck the spread of the fire with foamDCast the barge off the wharf
单选题When there is a fire in a large electric motor, normally the very FIRST step is to （）Asecure the electric supplyBventilate area to remove smokeCstart the fire pump and lead out hoseDapply foam
单选题What does the word “rundown” (Line 3, Para. 1) possibly mean?AThe rehearsal of tomorrow’s programme.BA working report or summary to his superior or head.CAn explanation of the programme.DPreparation for the programme.
单选题What does the mac packet-classify command do when applied to an interface configuration？（）A It enables MAC ACLs to be applied to only IP packets that enter the interface.B It enables MAC ACLs to be applied to only non-IP packets that enter the interface.C It enables MAC ACLs to be applied to all packets that enter the interface.D It enables MAC ACLs to be used for QoS settings.
单选题What does the woman mean when she first refers to a balanced diet?AEating less than necessary.BTrying to lose weight quickly.CGetting all the necessary vitamins and minerals.
单选题What does the term to navigate with caution mean?（）.ATo navigate intentionallyBTo navigate intenselyCTo navigate carefullyDTo navigate completely