553.The central maintenance computer is used for all troubleshooting and test activity.

A. Record the test results.

B. Record the check results.

C. Test the result on the record.

A. 确保压力不低于 30 磅每平方英寸。

B. 确保压力小于 30 磅每平方英寸。

C. 确保压力不高于 30 磅每平方英寸。

A. 如果湿度频繁地变化,在装置上盖上盖子。

B. 如果温度经常改变,在部件上铺上覆盖物。

C. 如果人为地频繁改变,在部件上贴上封签。

A. 对涡轮发动机来说,排气系统包括发动机本体以外的部件。

B. 对涡轮发动机来说,排气系统包括发动机主系统内的装置。

C. 对涡轮发动机来说,排气系统不包括发动机主系统以外的装置。

A. The glideslope path is at a constant angle to the threshold of the runway.

B. The glideslope path is at a variable angle to the first end of the runway.

C. The vertical course path is at a fixed angle to the threshold of the runway.

A. 如果厚度超过 0.1 mm,则重新安装零件。

B. 如果重叠超过 0.1 mm,则重新组装零件。

C. 如果间距超过 0.1 mm,则重新调整零件。

A. Each door has flexible seals at its structure interface which protect the metal interfaces from damage by the airflow.

B. Each door has flexible seals at its structure interface which protect the metal interfaces from no damage by the airflow.

C. Each door has formalist seals at its structure interface which protect the metal interfaces from damage by the airflow.

A. 将线路穿过线槽顶部。

B. 将天线穿过基座顶部。

C. 将天线穿过插槽顶部。

A. 注:在随后的测试中,当来自交输进口的燃油流量超过 5 毫升/分钟时,你将获得开启压力。

B. 注:在随后的测试中,当来自交输进口的燃油流量超过 5 毫升/分钟时,你将获得刮痕压力。

C. 注:在随后的测试中,当来自横穿进口的燃油流量超过 5 毫升/分钟时,你将获得刮痕压力。

D. C.注:在随后的测试中,当来自横穿进口的燃油流量超过 5 毫升/分钟时,你将获得刮痕压力。

A. There are three jacks onboard the fuselage.

B. There are three jacking adapters on the fuselage.

C. There are three jacking points on the fuselage.