Landing Gear

Question 0

Main landing gear and nose landing gear is locked by?

Answer 0

MLG Gear is held in the Up and Down positions by
mechanical locks. NLG UP and Down position by a
over center locking mechanism.

Question 1

Proximity sensing electronic units?

Answer 1

(PSEU) control normal extension and retraction.

Question 2

What pumps the alternate landing gear system

Answer 2

Hydraulic system #2.

Question 3

How is the nose gear held in the up and down position?

Answer 3

Over center mechanism.

Question 4

How are the nose gear doors actuated?

Answer 4

Mechanically

Question 5

The purpose of the brushes on the main wheels wells?

Answer 5

Aerodynamic seal.

Question 6

The anti skid control unit (ASCU)

Answer 6

The anti-skid system consists of a dual channel
(inboard and outboard) anti-skid control unit (ASCU),
four axle mounted speed transducers and two dual
anti-skid control valves.
The anti-skid system independently controls the
braking of each main wheel by modulating the
hydraulic pressure applied to each brake
Anti-Skid test The ASCU is equipped with a built-in-
test function. The system will do a continuous test and
a start-up self test. Should a fault be detected, the
defective anti-skid channel will be displayed on the
EICAS.