Landing Gear And Brakes

Question 1

How Is Emergency Gear Extention Accomplished?

Answer 1

A Free Fall System And Hydraulic Assist

Question 2

How Is Nosewheel Steering Accomplished?

Answer 2

Hydro-Mechanically Through A Tiller And Rudder Pedals

Question 3

How Do The Brakes Operate?

Answer 3

Electronically Controlled, Hydraulically Actuated

Question 4

The Emer/Park Brake System Supplies What?

Answer 4

Equally Metered Pressure To All Four Brake Assemblies According To Pilot Demand In The Event Of A Loss Of Both Primary Hydraulic Brake Systems

Question 5

Hydraulic Actuators On The MLG And NLG Are Responsible For What?

Answer 5

Extending And Retracting The Gear

Question 6

Where Is The Weight On Wheels “Squat Switch” Located?

Answer 6

Nose Landing Gear Assembly

Question 7

Does The Brake System Have Anti-Skid?

Answer 7

Yes
Independently Controlled Anti-Skid Protection For Each Braked Wheel

Question 8

Besides the squat switch on the nose gear, what other system provides “on ground” status to the airplane systems?

Answer 8

MLG Position Detection System

Question 9

What do the brake pedal position sensors do?

Answer 9

Apply brake pressure proportionately to the brake pedal deflection

Question 10

What does the hydraulic accumulator do for the brakes?

Answer 10

Stores fluid to provide temporary hydraulic pressure to the brake system if hydraulic power is lost

Question 11

What are wheel speed transducers?

Answer 11

They monitor the rotational speed of each braked wheel

Question 12

Is Anti-Skid Braking provided independently for each of the four brakes?

Answer 12

Yes

Question 13

The Anti-Skid range of effectivity is from speeds…

Answer 13

10 +/- 2 knots up to 200 knots

Question 14

Locked wheel protection is active above what speeds?

Answer 14

Above 25 knots

Question 15

What is touchdown protection?

Answer 15

*Built into the braking system to prevent application of brake pressure prior to aircraft touchdown
*Brake application at touchdown is inhibited for 3 seconds after WOW

Question 16

How is the parking brake controlled and actuated?

Answer 16

Mechanically controlled and hydraulically actuated

Question 17

What is the function of the check valves?

Answer 17

To maintain accumulator pressure available to the parking brake system when the aircraft hydraulic system is not operational

Question 18

What do the pressure sensors do?

Answer 18

Measure the parking brake accumulators’ supply and the applied parking brake pressures

Question 19

Rudder pedal steering angle is ___
Degrees
Tiller steering angle is ____ Degrees
For a total steering capability of ____ Degrees

Answer 19

7.5
80.5
88

Question 20

The Gear Warning activates based on the following conditions?

Answer 20

If any landing gear is not down and locked:

*And flaps are deployed beyond flaps 2
*radio altimeter less than 500 AGL with both TLA less than 8.7 Degrees
*radio altimeter invalid and AOA > 0.4 with both TLA less than 8.7 Degrees

Question 21

Normal extension and retraction of the landing gear is accomplished by hydraulic system ___

Answer 21

B