飞机冷透后，当天首次飞行前，发动机必须冷转（ ）秒，并且在起动发动机之前确认风扇转动。After airplane cold soak, before the first flight of a day, the engines must be motored for( )seconds and the fan rotation must be verified before an engine start is initiated.

自动性能储备系统（APR）的作用是什么？What is the purpose of the Automatic Performance Reserve System (APR)?

CRJ900发动机的N1和N2段是什么？What are the N1and N2 sections of the CRJ 900 engines?

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

B点火系统由哪个汇流条供电？What bus is IGN B powered from?

CRJ900的基本发动机型号是：The baseline engine model for CRJ 900 is:

哪项最好地描述了EICAS上显示的滑油压力指示？Which statement best describes oil pressure indication shown on EICAS?

正常操作时，滑油温度指示显示在哪里？During normal operations, where is the oil temperature indication-presented?

反推气流由什么产生Forward and thrust lever airflow is produced by the_.

N2由什么组成：The N2 is comprised of a:

反推装置开关选到预位并且油门杆在慢车位，操作反推装置还需要哪些额外的条件？With the TRUST REVERSER switches selected to ARMED and the thrust levers at IDLE, which additional conditions are needed to operate the thrust reversers?