Landing Gear

Question 1

What is OFF position for for the landing gear?

Answer 1

Removes hydraulic pressure from the system.

Question 2

The landing gear indicator lights indicate red when:

Answer 2

one or more of the gear is in disagreement with the lever or they are in transit. Lights also illuminate when the a/c is below 800’ AGL with the gear not down and locked and one or both thrust levers are retarded to IDLE.

Question 3

The landing gear lights show green when:

Answer 3

gear is down and locked.

Question 4

Where is there another set of gear indicator lights?

Answer 4

Aft overhead panel. They operate from separate circuits.

Question 5

T/F: Only one light, either center panel or overhead panel needs to be lighted for a gear to be considered down and locked.

Answer 5

True

Question 6

Landing gear ______ and ________, as well as _______, receive power from hyd sys A.

Answer 6

extension, retraction, nose wheel steering.

Question 7

T/F: Autobrakes are available with both normal and alternate brakes.

Answer 7

False. Just normal.

Question 8

When anti-skid is inop, what can’t you do for takeoff?

Answer 8

not able to use an assumed temperature reduced takeoff thrust takeoff.

Question 9

How many air ground sensors are there?

Answer 9

6, 2 on each gear

Question 10

On the _____, RTO mode is available.

Answer 10

ground

Question 11

After touchdown, and once wheel speed is greater than 30 kts, an _________ landing mode may be selected.

Answer 11

autobrake

Question 12

On the ground, the LANDING GEAR _____ solenoid is latched.

Answer 12

lever lock.

Question 13

Flight locks(doors): when ___ or more entry /service doors are closed and either engine N2 RPM is greater than 50%, the flight locks become engaged.

Answer 13

3

Question 14

Flight locks become disengaged on the ground when either thrust lever is less than _____.

Answer 14

53%.

Question 15

Below 2000 feet RA the AT (provided armed) is available for a _______

Answer 15

go around

Question 16

AT are disengaged ______after touchdown.

Answer 16

2 seconds

Question 17

With an airborne cargo fire, the _______extinguisher bottle timer is enabled.

Answer 17

2nd

Question 18

If sys B resivoir fluid is lost due to a leak downstream of the landing gear transfer unit, a sensor closes the LGTU and alternate steering is ________.

Answer 18

not available.

Question 19

The plane must be ________ for nose wheel steering to be powered.

Answer 19

on the ground

Question 20

Nose wheel tiller inputs can be rotated up to

Answer 20

+/- 78 degrees.

Question 21

Rudder pedals can supply steering control of up to

Answer 21

+/- 7 degrees

Question 22

When does nose wheel steering deactivate?

Answer 22

on takeoff as the nose wheel strut extends

Question 23

For aircraft _______ or ________ without having to depressurize the hydraulic systems, a lockout pin installed in the towing lever will depressurize nose wheel steering.

Answer 23

towing; pushback

Question 24

What hyd sys supplies pressure for the brake accumulator?

Answer 24

sys B

Question 25

T/F: anti-skid is available with both normal and alt brakes.

Answer 25

True

Question 26

What is the difference in anti-skid protection in normal vs alt?

Answer 26

Normal: anti skid for each individual wheel Alternate: just wheel pairs.

Question 27

Brake systems provide protection from what?

Answer 27

Skid, locked wheel, touchdown, hydroplanning.

Question 28

T/F: Anti-skid is available with loss of both hyd systems

Answer 28

true

Question 29

What hyd system provides pressure for autobrakes?

Answer 29

Sys B

Question 30

When RO is selected, AUTO BRAKE DISARM light illuminates momentarily to indicate operation of the _______.

Answer 30

self test.

Question 31

How do you arm RTO mode

Answer 31

``` on ground anti-skid and autobrakes work AUTO BRAKE switch in RTO wheel speed less than 60 kts thrust less than idle. ```

Question 32

If takeoff is rejected below 90 kts, autobraking will not start. The ___________ light will not illuminate and RTO remains aremed

Answer 32

AUTO BRAKE DISARM

Question 33

How is the RTO mode activated?

Answer 33

speed greater than 90 kts and thrust levers moved to IDLE.

Question 34

On a dry runway, _____ deceleration is not as great as _______braking.

Answer 34

MAX; full pedal

Question 35

If the crew does not terminate autobraking, the aircraft will_________.

Answer 35

come to a complete stop

Question 36

How are autobrakes disarmed?

Answer 36

speed brake lever moved to the down detent one or both thrust levers advanced manual brakes applied.

Question 37

T/F: the parking brake can be set with ________pressure

Answer 37

accumulator

Question 38

If a spinning tire with loose tread impacts a fitting in the wheel well ring opening,

Answer 38

retraction is stopped and the gear free falls back down.

Question 39

Main gear is held in the up position by ________.

Answer 39

mechanical uplocks

Question 40

if the left engine fails on takeoff, what happens with respect to the landing gear?

Answer 40

the landing gear transfer unit will use hyd sys B to supply the fluid volume req'd to ensure retraction of the gear at a normal rate.

Question 41

What 3 things bring the gear down?

Answer 41

Hydraulic pressure, gravity and air loads.

Question 42

What holds the landing gear down and locked?

Answer 42

overcenter mechanical and hydraulic locks

Question 43

If the Manual Extension Access door is open, what 3 things can happen?

Answer 43

1. gear extension is possible with handle in any position 2. normal gear extension is possible with hyd sys A 3. landing gear retraction is disabled.

Question 44

What 3 things could cause the landing gear lever to not go to the up position?

Answer 44

Failure of: air/ground system ground spoiler bypass valve to close landing gear lever lock solenoid.

Question 45

If the gear won't come up, you should?

Answer 45

leave the gear down and retract the flaps on schedule. d

Question 46

If the cabin altitude/configuration warning horn sounds immediately after takeoff, what does this indicate?

Answer 46

a failure of the air/ground system or | failure of the ground spoiler bypass to close

Question 47

When is manual gear extension necessary?

Answer 47

any gear not down and locked with the gear lever down or gear lever becomes stuck at off

Question 48

For manual gear extension, when the last handle has been pulled, wait ______,then place the gear lever DN, if possible.

Answer 48

15 seconds

Question 49

Partial or full gear up configuration?

Answer 49

Flaps 40 and set VREF accordingly.