390.What are the consequences of one flap PCU motor inoperative ?

　No concequence. the movement of the flap surfaces is not affected.

　The system is locked and flap movement is no longer possible.

　The flap surfaces extend (retract) at half speed.

正确答案：C

A320机型英语知识练习

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271.Which component gives priority to the green hydraulic system ?

270.Are the return lines shut off when the parking brake is applied ?

269.What is the purpose of the hydraulic fuses ?

268.What happens when a wheel speed decreases below 0.87 times the reference speed ?

267.When does the BSCU provide anti-skid control ?

266.What are the auto brake arming conditions ?

265.In which mode is progressive pressure sent to the brakes 2 seconds after ground spoilers deployment?

264.How can the parking brake be hydraulically powered ?

263.In case of normal braking system failure, how is alternate braking applied ?

262.How is inflight braking initiated ?