577.What happens if the MODE SELECTOR is set to MAN and the DITCHING pusbuttom is set ON?

　The outflow valve,emergency ram air inlet ,avionics ventilation and pack flow control valve close

　Only the outflow valve close

　Only the outflow valve is not automatically controlled to close

正确答案：C

A320机型英语知识练习

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84.On ground, in case of failure, how can you open or close the air intake flap ?

83.Normal APU shutdown is performed from ?

82.From where can an APU emergency shut down be performed ?

81.What is the main function of the APU ?

80.The starter motor assists the APU up to which speed ?

79.APU is running and APU bleed air system is in use. What happens if APU MASTER SW pushbutton is released out ?

78.When does the APU air intake flap open ?

77.When does the bleed load valve regulate ?

76.When are the IGVs commanded to the idle position ?

75.When does the surge control valve fully close ?