旅客舱门安全地关闭并锁上当A passenger door is safely closed and locked when:

(案例分析)4 月3 日，某航A321 执行广州-普吉航班，在普吉机场三次复飞，后飞往槟城备降，在槟城再次复飞，重新进近着陆，落地时油量仅853公斤，根据公司A320机型的燃油管理规定，目的地机场挡板油量4300公斤、备降机场挡板油量2100公斤。请分析此案例中机组存在的问题有哪些？（cases analysis）On April, 3rd, an A321 flight from Guangzhou to Phuket of one airline performed go around for three times at Phuket airport, later airplane divert to Penang as alternate airport and carried go around again and made approach and landing with fuel quantity remianed only 853kg. According to the regulations of fuel management of A320 family in company, the minimum released fuel quantity of destination airport is 4300kg and that of alternate airport is 2100kg. Based upon this case, what are the problem existed on crew?

下列关于微暴流叙述正确的是

A. 只有在热带地区才会出现微暴流

B. 微暴流的直径不会大于4KM

C. 微暴流的下沉气流比周围大气的温度高

在卫星云图上，根据下述何种现象可以区别云和高山积雪

A. 高山积雪有树枝状分支，而云却没有

B. 高山积雪有纹理和暗影，而云却没有

C. 高山积雪常显白色，而云却常显灰白色

如果IDG在空中脱开，在下列哪种情况下可以重置IDG？If IDG was disconnected in flight, under which of the following conditions can IDG be reset?

A. 人工在空中重新连接reconnected in flight manually.

B. 在地面发动机运转时 on the ground ,with the engine running

C. 在地面发动机关车时 on the ground ,with the engine shut down

当N2达到%（ ） rpm时，起动机马达脱开。Starter motor cut-out occurs at percent N2 rpm.

A. 30

B. 40

C. 50

D. 55

ADS-B OUT 1 FAIL状态信息 (白色)含义是？

A. 广播式自动相关监视发 送 2失效

B. 广播式自动相关监视发 送 1 失效

C. 应答机 1不工作

D. 应答机 2不工作

一般而言，气团的水平范围为

A. 几十千米到几百千米

B. 几十千米到几千千米

C. 几百千米到几千千米

ENG SYNC OFF 状态信息（白色）表明ENG SYNC OFF status (white)

A. 表明2台发动机处于高功率计划中Indicates that both engines are at a high power schedule.

B. 表明发动机 SYNC(同步)人工取消选择。Indicates that engine synchronization manually selected off by flight crew.

C. 指示一个 FADEC 通道不工作或可能会影响发动机传感器裕度的故障组合。Indicates that one FADEC channel is inoperative or a combination of faults that may affect engine sensor redundancy.

D. 指示 L FADECFAULT 1 包含的状态信息之外不严重的故障组合。Indicates a combination of faults that are less serious than the faults covered by a FAULT 1 status message.

一个机场的过渡高度应当尽量的低，但最低不能低于多少英尺？

A. 2000FT

B. 3000FT

C. 4000FT

在可见光云图上，积雨云团的色调表现为＿＿

A. 灰白色

B. 灰色

C. 浓白色