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Chapter 13-3

Landing Gear and Brakes

QuestionAnswer
35. Hydraulic System(s) __________ power(s) the brakes. a) 1 and 2
36. What hydraulic system(s) provide brake pressure? a) Hydraulic system 1 - Outboard brakes b) Hydraulic system 2 - Inboard brakes c) Hydraulic systems 1 & 2 - Parking / Emergency brake
37. The Landing and RTO Autobrake Modes will be disarmed if any of the following conditions occur a) The selector knob is set to OFF, pedal braking is applied, BCS (Brake Control System) failure is detected or either thrust lever is advanced beyond idle during autobrake application
38. How many full brake applications will the parking / emergency brake accumulator provide? a) 6 full applications
39. How do you know that the parking brake is set? a) An ON light illuminates on the EMER / PRKG BRAKE light
40. Can the parking brake be used to stop the aircraft if you lose hydraulic systems 1 and 2? a) Yes
41. What conditions must be met for the autobrakes to engage during a rejected takeoff? a) Thrust Levers IDLE or REV, wheelspeed above 60 kt and brake pedals not pressed
42. How are the brakes commanded? a) Brake by Wire, electrically commanded and hydraulically activated and Pedal position transducers send brake requests to the BCM (Brake Control Module)
43. If the brake indicator pins are flush, are brakes within acceptable limits? No, there is no way to know how far back the wear pin is.
44. When does Touchdown protection deactivate for braking? a) 3 seconds after WOW has sensed ground or 50 kt wheelspeed
45. __________ prevents tire skidding and ensures maximum braking efficiency. a) Anti-skid protection
46. There is anti-skid protection when using the emergency brake. (T / F) a) False
47. What does Anti-skid provide? a) Reduces wheel brake pressure in order to recover wheelspeed and prevent tire skidding (inop < 10 kts)
48. When is the anti-skid system deactivated? a) Wheelspeed below 10 kt
49. What does Locked Wheel provide? a) If a wheelspeed is 33 % or below its associated paired wheelspeed, BCM commands zero pressure to the brake of the slower wheel, allowing speed equalization (inop < 30 kts)
50. When is locked wheel protection deactivated? a) Wheelspeed below 30 kts
51. Taking off with AMBER brake temperature indications is allowed. (T / F) [SOP Limitation] a) False
52. Activation of the DN LOCK RLS button is prohibited for all takeoffs unless what? [SOP Limitations] a) Unless it is required for obstacle clearance (C)
Created by: lglippig
 

 



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