586.When does the skin exchanger inlet bypass valve open?

　In open circuit configuration

　In intermediate circuit configuration, or in closed circuit configuration with airflow higher than the requested value

　When the ambient Avionics bay temperature is above 34'C(93.2'F)

正确答案：B

A320机型英语知识练习

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75.When does the surge control valve fully close ?

74.How do you check the oil quantity ?

73.Which component controls the ignition and starting operation ?

72.What are the three APU modules ?

71.Which components are installed on the combustion chamber ?

70.Of what kind of design is the compressor ?

69.Which drain collects fuel, water and air ?

68.The Electronic Control Box has :

67.Which component controls and monitors the APU ?

66.What is the main function of the APU ?