Landing Gear And Brakes

Question 1

What hydraulic system controls extension and retraction of the landing gear?

Answer 1

2

Question 2

T/F: The proximity sensor electronic unity (PSEU) control gear and door extension and retraction.

Answer 2

TRUE

Question 3

When does the gear handle illuminate?

Answer 3

Handle disagrees with gear selection

Like during initial selection when gear is in transition

Question 4

T/F: Only hydraulic pressure keeps the gear in the down and locked position.

Answer 4

FALSE, over center locks also keep gear down and locked

Question 5

When would pilots use the alternate gear extension?

Answer 5

Emergency/abnormal conditions

LDG GEAR INOP caution light, landing gear indication fails, loss of #2 hydraulic system fluid

Question 6

T/F: When pulling the main landing gear release handle, only the gear unlocks are released.

Answer 6

FALSE, also main gear hydraulic door is released

Question 7

What happens when pilots pull the main landing gear release handle (located in the ceiling above the First Officer)?

Answer 7

Main landing gear doors and gear up locks are released. The gear will free fall into the down position but will need to be pumped down.

Question 8

Where is the handle found for the alternate gear extension hand pump?

Answer 8

Behind the copilot seat

Question 9

If there is a failure in the weight on wheels (WOW) system, what might happen?

Answer 9

Gear may not retract

Question 10

How many degrees can the nose wheel free caster?

Answer 10

120 degrees either side of center

Question 11

T/F: Nose wheel steering is self-centering.

Answer 11

TRUE

Question 12

How many degrees of steering are available using the tiller?

Answer 12

70 degrees either side of center

Question 13

How many degrees of steering are available using the rudder pedals?

Answer 13

8 degrees either side of center

Question 14

Which hydraulic system controls the normal brake and anti-skid system?

Answer 14

1 hydraulic system

Question 15

Which hydraulic system does the emergency parking brake use?

Answer 15

2 hydraulic system

Question 16

What wheel speed is needed for the anti skid system to activate?

Answer 16

10 kts on initial taxi

35 kts on landing (or after 5 seconds of WOW)

Question 17

How many applications can a fully charged accumulator supply to the brakes?

Answer 17

Approximately 6 applications

Question 18

T/F: All gear doors are attached to the gear assembly and open and close mechanically.

Answer 18

FALSE, FWD nose and AFT main doors are not attached to the gear and are hydraulically operated

Question 19

Gear assemblies are held in the retracted position by _____.

Answer 19

Mechanical uplocks

Question 20

What action routes retraction and extension hydraulic pressure back to the return lines?

Answer 20

Opening the ALTERNATE RELEASE DOOR

Not pulling the release, just opening the door

Question 21

What happens when the nose wheel steering switch is selected to OFF?

Answer 21

Both steering modes (hand steering and pedals) are disabled and gear is in castor mode

Question 22

Normal brake applications are powered by _____.

Answer 22

1 system using either pilot brake pedals

Question 23

T/F: There is no differential braking or anti skid protection when using the EMERGENCY BRAKE lever.

Answer 23

TRUE