39.What happens if one of the latches is not unlocked during the reverse operation ?

622.If the FAC channel 1 and channel 2 fault:

621.Which sensor is used for indication:

620.When the configuration of the flap is 1+F and the CAS achieves 210 knots:

619.In normal condions, the trimming and travel-limit of the rudder is controlled by:

618.What's the relationship of The two directors

617.If RMP2 is fault,which of the following is right

616.Time-delay of the cockpit voice recorder system relay which:

615.The service interphone system operates automatically when:

614.Which of the following is not part of the air conditioning PACK:

613.When the PACK airflow selector switch is selected “low” by bleeding air from APU, the outlet airflow of the PACK is: