A、An AUTO BRK pushbutton pressed in, green pressure and anti-skid powered and no failure in normal braking system.
B、An AUTO BRK pushbutton pressed in, yellow pressure and anti-skid powered and no failure in normal braking system.
C、An AUTO BRK pushbutton pressed in, green pressure and anti-skid deactivated and no failure in normal braking system.
答案：A
A、An AUTO BRK pushbutton pressed in, green pressure and anti-skid powered and no failure in normal braking system.
B、An AUTO BRK pushbutton pressed in, yellow pressure and anti-skid powered and no failure in normal braking system.
C、An AUTO BRK pushbutton pressed in, green pressure and anti-skid deactivated and no failure in normal braking system.
答案：A
A. Yes.
B. No.
A. By setting the leak measurement valve to OFF and operating the electric pump
B. By pressurizing the yellow system by using the PTU.
C. By setting the leak measurement valve to OFF, and manually open the LH wing spool valve.
A. To stop the Center Tank Pumps.
B. To restart Cooling fuel recirculation.
C. To stop the Cooling fuel recirculation.再循环
A. Automatic system 1 fail
B. Both automatic systema fail
C. Manual system fails
A. By means of two solenoids energized at the same time.
B. By means of two solenoids.
C. By means of one solenoid only.
A. The pressurizing valve.
B. The directional valve.
C. The deploy switch.
A. To ventilate the avionices equipment
B. To ensure the heating of the avionics bay
C. To avoid avionics bay structural damage
A. Electrically.
B. Pneumatically.
C. Hydraulically.
A. To refer to another MMEL part.
B. A maintenance procedure described in the MMEL.
C. A mechanical problem.
A. 41 736 lbs (18932 kg),
B. 45 920 lbs (20872 kg),
C. 52 174 lbs (23715 kg),
