Vol. 3 Unit 1 Self Test

Front 1

3 types of fuselage constructions?

Back 1

Truss, monocoque, and semimonocoque

Front 2

What type of construction does the skin carry the primary stress load?

Back 2

Monocoque

Front 3

For what purpose was the semimonocoque type fuselage designed?

Back 3

To overcome the strength to weight problem of the monocoque construction

Front 4

What type of material is used in the construction of the semimonocoque fuselage?

Back 4

Aluminium alloy

Front 5

Which members of the semimonocoque fuselage are the longest and strongest?

Back 5

Longerons

Front 6

What function do the stringers serve in a semimonocoque construction serve?

Back 6

Providing cross sectional strength to the fuselage and attachment points for the skin

Front 7

What factors determine the design of the aircraft's wings?

Back 7

Size, weight, airspeed, required rate of climb and mission

Front 8

What kind of wing design do most military aircraft use?

Back 8

Cantilever made of aluminium alloy

Front 9

What is meant by the term positive dihedral wing?

Back 9

The wings are angled upwards

Front 10

The units or components may be included as part of an aircraft empennage?

Back 10

The aft end of the fuselage on most aircraft may also include a horizontal or vertical stabiliser, rudders, elevators, and trim tabs

Front 11

What is the purpose of the vertical stabiliser?

Back 11

Maintain directional stability about the vertical axis and is the attachment point for the rudder

Front 12

In addition to the primary flight control surfaces, what are 2 other types of flight control surfaces?

Back 12

Secondary and auxiliary

Front 13

What is the function of primary flight controls?

Back 13

Control the directional movement about the various axis of an aircraft

Front 14

Where are the ailerons located on the aircraft?

Back 14

On the trailing edge near the wing tip

Front 15

What is the purpose of the rudder?

Back 15

Control the movement of the aircraft about the vertical axis

Front 16

What purpose do the trim tabs serve?

Back 16

Secondary flight controls that aid primary flight controls by correcting any unbalanced condition in flight

Front 17

2 examples of auxiliary flight controls?

Back 17

Flaps and spoilers

Front 18

What is the purpose of the aircraft landing gear?

Back 18

Support the aircraft during landing resting and moving on the ground. It also aids in steering and braking on the ground

Front 19

Depending on the aircraft, how may the landing gear be extended or retracted?

Back 19

Electrically, mechanically, or hydraulically

Front 20

What increases an aircraft's ability to survive?

Back 20

The ability to defeat detection

Front 21

What major stealth technology advancement occurred in the late 70's?

Back 21

Advanced composite materials that aid in stealth

Front 22

Regarding grip length, what is the ideal installation of a nut and bolt assembly?

Back 22

A few thousandths of an inch shorter than the thickness of the material being joined

Front 23

How are special bolts normally identified?

Back 23

The letter S stamped on their head

Front 24

What 3 factors help maintenance personnel identify the size of the bolt?

Back 24

Length width and threads per inch

Front 25

Where are hex head bolts normally used?

Back 25

Where heavy tension or lengthwise stresses must be suatained

Front 26

What type of bolt is made of high strength steel and is used primarily in high tensile high fatigue strength applications?

Back 26

12 point external wrenching

Front 27

Two primary categories of nuts?

Back 27

Self locking and non self locking

Front 28

3 features of a self locking type nut?

Back 28

1. Require no external locking device

2. Designed to withstand extreme vibration

3. Used to attach anti friction bearings, pulleys, accessories, and anchor nuts around inspection holes

Front 29

How many threads must extend through the finer of the self locking nut?

Back 29

1.5

Front 30

What hardware item is used with screws and bolts whenever the self locking or castellated nut is not used?

Back 30

Lock washers

Front 31

What is the most common form of threaded fastener used on an aircraft?

Back 31

Screws

Front 32

When would a flat head screw be used?

Back 32

Counter sunk holes where a flush surface is required

Front 33

What type of screws are designed for electrical use?

Back 33

Round head

Front 34

What is the most common type of rivet used for fastening aircraft structures?

Back 34

Solid shank rivet

Front 35

From what materials may solid shank rivets be made?

Back 35

Generally from aluminium alloys, can also be made from corrosion resistant steel, mild steel, titanium, iron or copper

Front 36

What type of rivet is used in the interior of aircraft where a flush surface isn't necessary?

Back 36

Brazier head

Front 37

What rivets are used on the outside wing structure where a smooth, aerodynamic surface is desired?

Back 37

Counter sunk

Front 38

What type of areas would require the installation of a jo-bolt?

Back 38

Where access to one side of the work is impossible

Front 39

What is a hi-lok fastener?

Back 39

High strength threaded fastener that combines the best parts of a rivet and bolt

Front 40

What are some common uses of tubing on aircraft?

Back 40

Transport fuel, coolant, oil, breathing oxygen, and hydro. Also for electrical conduits and vent ducts

Front 41

Advantages of aluminium alloy tubing over copper tubing

Back 41

Lighter weight, ease of forming, and resistant to corrosion

Front 42

What type of tubing is suitable for use in a high pressure system?

Back 42

Stainless steel

Front 43

What type tubing is most widely used for general-purpose applications?

Back 43

Aluminium alloy

Front 44

What impact would chafing have on tubing?

Back 44

Reduce ability to withstand pressure

Front 45

4 areas of the aircraft susceptible to chafing?

Back 45

1. Dry bay area's

2. Wheel well

3. Component parts

4. Integral fuel tanks

Front 46

At what aircraft locations would flexible hose be used?

Back 46

Where a lot of vibration occurs or where flexibility is required

Front 47

What are 3 types of couplings commonly used on aircraft fuel systems?

Back 47

1. Quick disconnect

2. V Band

3. Wiggins

Front 48

Advantages of QD couplings?

Back 48

Ease and speed of connecting/disconnecting plumbing systems

Front 49

What type of V Band coupling requires the installation of safety wire as an added safety measure?

Back 49

QD

Front 50

What component of a Wiggins coupling provides a sealing action?

Back 50

O-ring

Front 51

Where does metal corrosion begin?

Back 51

On the surface of metals

Front 52

What effect can paint coatings have on the initial stages of corrosion?

Back 52

They can hide them

Front 53

3 degrees of corrosion?

Back 53

Light, moderate, and severe

Front 54

How is light corrosion identified?

Back 54

The protective coating is scarred or etched. There is discolouration and pitting to a depth of about 1 mm

Front 55

What type corrosion is normally removed by extensive hand sanding or light mechanical sanding?

Back 55

Moderate

Front 56

How is severe corrosion damage removed?

Back 56

Extensive mechanical sanding or grinding