Landing Gear

Question 1

On all aircraft equipped with retractable
landing gear, some means must be
provided to?

Answer 1

EXTEND THE LANDING GEAR IF THE NORMAL OPERATING MECHANISM FAILS

Question 2

To prevent a very rapid extension of an
oleo shock strut after initial
compression resulting from a landing
impact, various types of what are used?

Answer 2

valves or orifices are used which restrict the reverse fluid flow

Question 3

Fluid flow during shock strut operation is controlled by what?

Answer 3

The taper of the metering pin in the shock strut orifice

Question 4

Some nose struts have an upper locating
____ to straighten _____ when extended

Answer 4

Cam, Gear

Question 5

What is the function of a cam
incorporated in a nose gear shock strut?

Answer 5

STRAIGHTENS THE NOSEWHEEL

Question 6

When servicing an Air/Oil shock strut
with________,the strut should be
collapsed and fluid______ at the filler
opening

Answer 6

MIL-5606
Added

Question 7

A_____,______ or______ ring is
incorporated in a landing gear Oleo shock
strut to limit the extension stroke

Answer 7

Sleeve
Spacer
Bumper

Question 8

When an empty shock strut is filled
with fluid, care should be taken to
extend and compress the strut
completely at least 2 times to…

Answer 8

Ensure proper packing ring seating and removal of air bubbles

Question 9

IF STRUT SEEMS TO OPERATE NORMALLY
ON TAXI, BUT BOTTOMS ON LANDING, What is this an indication of?

Answer 9

FLUID LEVEL IS LOW

Question 10

Instructions concerning the type of fluid
and amount of air pressure to be put in a
shock strut are found in…

Answer 10

Aircraft manufacturer’s service manual

Question 11

Torque links maintains correct alignment of what?

Answer 11

The wheel & the strut

Question 12

The purpose of a sequence valve in a
hydraulic retractable landing gear
system is to ensure operation of the
landing gear and gear doors in the
_______ _____

Answer 12

Proper order

Question 13

A _____ switch is used to monitor the
position of each gear during all flight
operation

Answer 13

Limit

Question 14

THE WARNING HORN, Warns the pilot that the…

Answer 14

landing gear is not down and locked and throttle retarded
• Horn sounds CONTINUOUSLY

Question 15

When inspecting landing gear landing gear indicators, lights, and horns must also be…

Answer 15

Checked for proper operation

Question 16

After performing maintenance on an
aircraft landing gear system, which
may have affected the systems
operation, it is usually necessary to
make an operational check with the _____ __ _____

Answer 16

Aircraft on Jacks

Question 17

If the extended longitudinal axis of
the main gear wheel intersects aft of
the aircraft, the wheels can be termed
as having ___ ___

Answer 17

TOE-OUT

Question 18

Master Cylinders are equipped with a ____________ ____ which allows fluid to return safely into the master cylinder

Answer 18

compensating port

Question 19

Brakes can drag if compensating port becomes..

Answer 19

Clogged (slow to increase)

Question 20

Power boost systems uses the____ _________ _______ as
power source

Answer 20

Main hydraulic pressure

Question 21

Power boost systems are used on aircraft that have higher ______ _____

Answer 21

Landing Speeds

Question 22

anti skid provides systems provides ______ _______ it is an _________ _________ _______

Answer 22

Maximum braking
Electro-Hydraulic System

Question 23

The control unit can be regarded as the
brain of the ____ ____ ______

Answer 23

Anti-skid system

Question 24

The CONTROL UNIT Receives the signal from the _____ _______. It determines if any of the wheels are
turning at a ______ speed than the others.

Answer 24

Wheel Sensors, Slower

Question 25

THE CONTROL UNIT will send a signal to the ____ _______ _____ which relieves the _________ ________ on the brake, This will allow the wheel to speed back up to the speed of the other wheel.

Answer 25

Skid-control valve, hydraulic pressure

Question 26

In an anti-skid system wheel skid is detected by an _________ _________ ______

Answer 26

Electrical Transducer Sensor

Question 27

Anti-skid control valves are ____ - ______, electrically controlled hydraulic valves that respond to the input from the control unit

Answer 27

Fast-Acting

Question 28

Anti-Skid control valves will adjust the amount of ________ ________ that will be applied to the brakes.

Answer 28

Hydraulic Pressure

Question 29

In an ANTI-SKID CONTROL VALVE system, As pressure is adjusted to the brakes, deceleration slows to…

Answer 29

Within the range that provides the most effective braking without skidding

Question 30

_____switch, ___ switch, & the landing gear ground safety switch, are all the same switch just different names

Answer 30

Squat, Wow

Question 31

Antiskid system is deactivated in the air by _______ ____ safety switch

Answer 31

landing gear

Question 32

TOUCHDOWN & LOCK WHEEL PROTECTION typically functions in conjunction with the wheel speed sensor and the air/ground safety switch on the_______ ____ _____

Answer 32

Landing gear strut (Squat Switch)

Question 33

Until the aircraft has______ __ ______, the detector circuitry signals the anti-skid control valve to open the passage between the brakes and the hydraulic system return, thus preventing pressure build-up and application of the brakes

Answer 33

weight on wheels

Question 34

When bleeding brakes, once air is gone you will have ____ _____ ______

Answer 34

Firm brake pedals

Question 35

After bleeding aircraft brakes if still soft or spongy it could be a result of ____________ ________ _____

Answer 35

Deteriorating flexible hoses

Question 36

Excessive wear in the shoulder area of an aircraft tire is an indication of ______________

Answer 36

Underservicing

Question 37

Excessive wear in the center of the tread of an aircraft tire is an indication of _____________

Answer 37

Overinflation

Question 38

A tire may be recapped an __________ amount of times as long as the tire carcass remains serviceable

Answer 38

indefinite

Question 39

In tire structures, what deflects runway water away from rear mounted engines?

Answer 39

Chine

Question 40

Tubes in newly installed tires must be first inflated and fully deflated, they are re-inflated to the correct pressure to allow the ____ __ ________ ______ correctly inside the tire.

Answer 40

Tube to position itself

Question 41

When mounting tires, consult and follow Manufacturers service information all including 1)____ _______,2) ___________ and 3) ________ _____________, and 4) _________ _________

Answer 41

1)Bolt torques 2)Lubrication 3)Balancing requirements 4)Inflation procedures

Question 42

The O-ring should be _________ and in good condition to ensure it seals the wheel for the entire life of the tire

Answer 42

Lubricated

Question 43

A ___ ___ is used to locate the lightest part of the tire, you should align the red dot with the heavy part of the wheel

Answer 43

Red Dot

Question 44

What is a stripe or mark applied to a wheel rim and extending onto the sidewall of a tube-type tire?

Answer 44

A slippage mark

Question 45

Air leakage on a split _________ ____ wheel is prevented by a packing between wheel halves

Answer 45

Tubeless type

Question 46

What is a fusible plug?

Answer 46

A THERMAL PLUG THAT RELEASES AIR PRESSURE WHEN TIRE AIR TEMP IS TOO HIGH