（EMB145）什么时候两边的EMERGENCY RAM AIR口都打开？（）A、空中，两个组件活门指令性关闭，直流重要汇流条可用B、空中或地面，两个组件活门指令性关闭，直流重要汇流条可用C、空中，两个组件活门中的一个指令性关闭，直流重要汇流条可用
（EMB145）什么时候两边的EMERGENCY RAM AIR口都打开？（）
- A、空中，两个组件活门指令性关闭，直流重要汇流条可用
- B、空中或地面，两个组件活门指令性关闭，直流重要汇流条可用
- C、空中，两个组件活门中的一个指令性关闭，直流重要汇流条可用
相关考题：
Usually, emergency electricity supplies to_______on boardA.Cargo winchB.WindlassC.Steering gearD.Main air compressor
Air trapped in the hydraulic fluid of a steering system may be indicated byA.the steering pumps overspeedingB.a jammed open relief valveC.a constantly occurring improper rudder responseD.excessive ram pressure
An emergency sea anchor may be constructed by using ______.A.a boat bucketB.an air tank filled with waterC.an oar and canvas weighted downD.All of the above
单选题An emergency sea anchor may be constructed by using（）.Aa boat bucketBan air tank filled with waterCan oar and canvas weighted downDAll of the above
单选题Where tanks are arranged for either oil or ballast, （） must be fitted in the pipeline.Aa change-over chestBa head tankCa emergency bilge pumpDan air cooler
单选题Air trapped in the hydraulic fluid of a steering system may be indicated by（）Athe steering pumps overspeedingBa jammed open relief valeCa constantly occurring improper rudder responseDexcessive ram pressure
单选题The primary task of the compressed air system is to deliver the starting air necessary for （）Astarting the MEBstarting the emergency electric alternatorCdriving the main turbineDdriving the turbocharger
单选题The booster pump, which supplies diesel oil to（） , should have a possibility of being powered by compressed air or by emergency power.Athe main enginesBthe auxiliary enginesCthe emergency generator engineDthe auxiliary engines and the main engine(s)
单选题Starting air for auxiliary engines may be taken directly from the main reservoirs or through （）.Aan auxiliary reservoirBa controlling air bottleCan emergency air compressorDa main air compressor
单选题According to the ship emergency plan, when average accident happened and the captain made the decision to withdraw from the engine room before leaving the engine room, the wrong operation is that （）Athe chief engineer leaves the engineer room with the engine room log book at firstBreleasing compressed air in the air receiver and closing the watertight doorCstopping all the running machineries and electric devicesDclosing the quick-closing valves of all the oil tanks, stopping the boiler and releasing gas
单选题Usually, emergency electricity supplies to on board（）ACargo winchBWindlassCSteering gearDMain air compressor