Landing Gear and Brakes Flashcards
Which hydraulic system controls extension and retraction of the landing gear?
2 hydraulic system
True or False: The proximity sensor electronic unit (PSEU) controls gear and door extension and retraction.
True
When does the gear handle illuminate?
Anytime the handle disagrees with the gear system
True or False: Only hydraulic pressure keeps the gear in the down and locked position.
False
When would pilots use the alternate gear extension?
Landing gear Inop caution light illuminates, Landing gear indication fails, #2 Hyd system pressure is lost
True or False: When pulling the main landing gear release handle, only the gear uplocks are released.
False
What happens after pilots pull the main landing gear release handle?
The gear doors and gear uplocks are released
Where is the handle found for the alternate gear extension hand pump?
Behind the Copilots seat
If there is failure in the weight-on-wheels (WOW) system, what might happen?
The landing gear may not retract
How many degrees can the nose wheel free caster?
120° Either Side
True or False: Nose wheel steering is self-centering.
True
How many degrees of steering are available using the tiller?
70° either side
How many degrees of steering are available using the rudder pedals?
8° Either side
Which hydraulic system controls the brake system?
1 Hydraulics
Which hydraulic system does the emergency parking brake use?
2 Hydraulic system or Accumulator pressure
What wheel speed is needed for the antiskid system to activate?
10 knots
How many applications can a fully charged accumulator supply to the brakes?
6 applications
True or False: All gear doors are attached to the gear assembly and open and close mechanically.
False
Gear assemblies are held in the retracted position by _____.
Mechanical Uplocks
What action routes retraction and extension hydraulic pressure back to the return lines?
Opening the alternate release door
What happens when nose wheel steering is selected off?
Both steering methods are disabled and the gear is in castor mode
Normal brake applications are powered by _____.
1 Hydraulics
What is the purpose of the anti-skid system?
Modulates brake pressure applied to each brake unit to prevent wheel lock-up and give maximum braking at all levels of runway friction
True or False: There is no differential braking or anti-skid protection when using the EMERG BRAKE lever.
True
