单选题 What is the purpose of the ENGine MASTER switch ? 发动机主电门的目的是什么

A、 To open or close the HP fuel Shut-off Valve.

B、 To command and reset the FADEC functions.

C、 Both to open or close the HP fuel Shut-off Valve and to command and reset the FADEC functions. 1.打开和关闭高压燃油关断活门 2.给FADEC指令和重置FADEC功能

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相关试题

单选题 What provides the selection of the igniters A/B ? 谁提供A/B点火的选择？

A、The Engine panel.

B、The ECAM control panel.

C、The ECU.

单选题 In which case can the ECU abort the start ? 在什么情况下ECU中止启动

A、Automatic start and manual start.

B、Automatic start only. 只在自动启动时

C、Wet motoring.

单选题 In which case will the FADEC abort the start sequence, either in manual or automatic mode ?无论在人工或自动模式下，什么情况FADEC中止起动？

A、HP Fuel valve not open.

B、Ignition fault.

C、EGT Overlimit detected. 探测到EGT超限

单选题 How does the starter operate ? 起动机用什么方式启动

A、Electrically.

B、Pneumatically. 气动

C、Hydraulically.

单选题 In automatic mode, the FADEC is able to automatically perform several start attempts. 在自动模式，什么情况下FADEC或自动执行几次起动尝试？

A、If an ignition fault occurs.

B、If an EGT overlimit or a stall fault occurs.

C、If an ignition fault, or EGT overlimit or a stall fault occurs. 如在点火故障，或EGT超限，或发生失速故障

单选题 What happens in manual mode when N2 reaches 50% ? 人工启动方式下，N2达到50%会发生什么

A、MAN START pushbutton ON light goes off.

B、The ECU provides to ECAM a message telling to close the start valve.

C、Start valve is automatically closed. 起动活门自动关闭

单选题 What causes an automatic continuous relight by the FADEC ? 什么情况下FADEC自动控制持续点火？

A、IGN START selection.

B、Flame out detected. 探测到熄火

C、ECU failure.

单选题 Of which type is the ignition system ? 点火系统是什么类型？

A、Low voltage , low energy.

B、Low voltage , high energy.

C、High voltage , high energy. 高电压，高能量