判断正误True or False：当接入外部气源时，其压力在ECS简图页以数字读数显示。when external air is connected, the pressure can be read as a digital readout on the ECS synoptic page.
答案：A
飞机试题CRJ900题库练习
判断正误：L 或 R VIB FAULT 状态信息（白色）表明相对应的发动机N1或者N2 的速度传感器失效。True or False：L or R VIB FAULT status (white) Indicates that respective engine N1 or N2 speed sensor has failed.
判断正误True or False：在地面上，如果APU在运转且发动机也工作，发动机将给空调系统提供引气。If the APU is operating and the engines are running, the engines will provide the bleed air to operate the air conditioning system.
判断正误True or False：
如果机组氧气系统出口气压降低至1410 psig以下，EICAS主页将显示＇氧气气压低＇的警戒信息，并且状态页的指示灯将转为琥珀色。If the outlet pressure of the crew oxygen system decreases below 1410 psig, the OXY LO PRESS caution message will be
displayed on the EICAS primary page and the indication on the status page will turn
amber.
判断正误：L 或 R VIB FAULT 状态信息（白色）表明相对应的发动机N1或者N2 的速度传感器失效。True or False：L or R VIB FAULT status (white) Indicates that respective engine N1 or N2 speed sensor has failed.
判断正误True or False：在地面上，如果APU在运转且发动机也工作，发动机将给空调系统提供引气。If the APU is operating and the engines are running, the engines will provide the bleed air to operate the air conditioning system.
判断正误True or False：
如果机组氧气系统出口气压降低至1410 psig以下，EICAS主页将显示＇氧气气压低＇的警戒信息，并且状态页的指示灯将转为琥珀色。If the outlet pressure of the crew oxygen system decreases below 1410 psig, the OXY LO PRESS caution message will be
displayed on the EICAS primary page and the indication on the status page will turn
amber.
