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Aerospace Technology > Aircraft General Maintenance > Flashcards

Aircraft General Maintenance Flashcards

0
Q

What does Workplace Safety and Health Act (WSHA) cultivate?

A

Good safety habits in all individuals so as to have a strong safety culture in our workplace

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1
Q

What is WSHA

A

Workplace Safety and Health Act

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2
Q

What is the circle effect caused by chemical (solvent) hazards?

A

Cut,burns,skin diseases

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3
Q

Hazard Identification,Risk Evaluation and Risk Control are three basic steps in…

A

Risk
Assessment
Process
(RAP)

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4
Q

Struck with a mallet ,the impact drivers uses cam action to impart a high amount of torque in a sharp impact to break lose a stubborn fastener.
What tool is that?

A

Impact drivers

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5
Q

Purpose of traceability records form

A

Tracing back all jobs previously done when the torque wrench is found out of calibration .

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6
Q

A good maintenance practices for maintaining the tools are ..

A

Clean all tools after use
Keep them in the tool boxes or trolleys
Carry out periodic inspection on the tools
Refer to the manufacturer manuals for periodic maintenance
If in doubt, ask

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7
Q

The aircraft number system is controlled and maintained by?

A

Air Transport Association 100

ATA100

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8
Q

ATA 100 is breakdown into 3 systems mad they are ..

A

Chapter
Section
Subject

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9
Q

A.M.M stands for

A

Aircraft Maintenance Manual

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10
Q

Which chapter to look out for if you need to know the length of the airplane?

A

ATA 06

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11
Q

Cotten pins are used in conjunction with ..

A

Non-locking castellation nuts

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12
Q

What is a circlip?

A

A form of retaining ring consisting of a semi-flexible metal ring with open ends which can be snapped into place , into a machined groove on a dowel ion or other part to permit rotation but to prevent lateral movement

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13
Q

What does the spring action of the washer (AN935) provides?

A

Friction to prevent loosening of the nut from vibration

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14
Q

How many times can a lock tab be used?

A

Once only

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15
Q

What is the purpose of wirelocking?

A

To prevent relative movement of structural or other critical components subjected to vibrations ,tension ,torque .

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16
Q

Aircraft bolts are mostly manufactured in

A

Class 3 medium fit

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17
Q

Which tool allows the user to determine the profile of the given thread and quickly categorize the thread by the shape and pitch?

A

Thread pitch gauges

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18
Q

What screws are designed to screwed into tapped holes by internal wrenching

A

Socket-head machine screws

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19
Q

What happens when aluminum is exposed to a gas containing oxygen?

A

A chemical reaction takes place resulting in the formation of aluminum oxide. Also known as oxidation.

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20
Q

How can aluminum alloy be protected?

A

From oxidation by the formation of an oxide film on its surface

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21
Q

What will happen if surface corrosion is not removed?

A

It will lead to pitting corrosion

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22
Q

What can detect inter-granular corrosion in the metal?

A

X ray

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23
Q

Corrosion occurs in the boundaries of the metal, also known as ______

A

Exfoliation corrosion

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24
Q

What will happen when exfoliation corrosion occurs?

A

Strength of metal is greatly reduced

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25
Q

What is necessary if exfoliation corrosion was detected on the metal?

A

Replacement of part

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26
Q

What is one method of preventing stress corrosion in heat-treated aluminum alloy parts?

A

Shot peen the surface to provide a uniformly compressive stressed surface

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27
Q

Rubbing action between joints erodes the protective coating ,resulting in ____

A

Fretting corrosion

28
Q

Aluminum oxide is naturally protective and anodizing merely __________

A

Increases the thickness and density of the natural oxide film

29
Q

What is alodizing?

A

A simple chemical treatment for all aluminum alloys to increase their corrosion resistance and to improve their paint binding qualities

30
Q

How to have a more accurate aircraft inspection results?

A

Cleaning the aircraft and keeping it clean

31
Q

How to control the corrosion development?

A

Daily or periodic aircraft washing

32
Q

What are blind rivets?

A

They are used when it is impossible to upset solid rivet . Such areas are only accessible to one side,or the area is too small or obstructed mad does not allow room for a bucking bar to reach the solid rivet

33
Q

What tool to use when installing a rivet ?

A

Rivnut puller

34
Q

What is used to prevent the rivnut from turning in the hole?

A

A key under the manufactured head

35
Q

What is hi shear rivet made of?

A

Aluminum and collar of steel

36
Q

What is hi shear rivet used for?

A

For joints that require a greater shear strength than a convectional rivet

37
Q

What is the advantage of using a hi shear?

A

40% lighter than a similar strength bolt

Installed with greater speed

38
Q

What is a Jo bolt?

A

A high strength blind fastener

39
Q

What does a Jo bolt consist of?

A

Threaded bolt
Rivet shape nut
Sleeve

40
Q

What is the objective of tube cutting?

A

To produce a square end free from burrs

41
Q

What should tubing be cut with?

A

Standard tube cutter

42
Q

Why must all tubing and tube assemblies be cleaned after fabrication? What is the cleaner used?

A

Prevent contamination

Dry-cleaning solvent P-D-680,Type II

43
Q

What reacts violently with oil and days equipment damage and injury to personnel ?

A

Oxygen

44
Q

What is the important thing to do when installing tube assembly in the aircraft?

A

Tighten the fitting nuts to the correct torque

45
Q

What should be used when tightening?

A

Fitting wrench or open end wrench

46
Q

What will happen if a nut is torqued when pressure is in the system ?

A

It will cut the flare without adding any appreciable torque to the fitting

47
Q

Allowable limit for nicks and scratches on straight section of tubing?

A

No deeper than 50% of the wall thickness

48
Q

What is used as static seals between two flat surfaces when there is no relative motion between the parts that are being sealed ?

A

Gaskets

O-rings

49
Q

What does cleaning of aircraft component help to prevent?

A

Corrosion

50
Q

Which manual should you refer to locate the jacking points of the aircraft?

A

AMM

51
Q

Hoisting equipment may consist of?

A

Overhead hoist
Overhead sling
Dynamometer
Hook

52
Q

S.W.L stands for?

A

Safety Working loading

53
Q

What allows user to read the tensile loading applied to the component and inform the user whether the component is experiencing overloading condition ?

A

Dynamometer

54
Q

What does a trestle support?

A

Components

55
Q

Can you mix a sealant application in an enclosed room?

A

No

56
Q

What class of sealant is suitable for fraying surface sealing?

A

Class c

57
Q

What is class A sealant used for?

A

Brush application

58
Q

What material of scrapper cannot be used I’m a sealant removal?

A

Metallic

59
Q

What is the tensile strength of a commercially pure aluminum ?

A

13000 psi

60
Q

How to double a commercially pure aluminum strength?

A

By rolling or other cold working process

61
Q

What is the main core alloy in 5000 series aluminum series ?

A

Magnesium

62
Q

Advantage of a 5000 series aluminum series

A

Good wielding

Corrosion resistant

63
Q

What should not be allowed when using abrasive blasting in aluminum or magnesium alloy?

A

Do not allow blastream to dwell on the same spot longer than 15 sec

64
Q

What will cause longer dwell times?

A

Excessive metal removal

65
Q

What is the point angle for a drill bit?

A

118 degree

66
Q

What is the lip clearance angle for a drill bit?

A

12 degree

67
Q

What is the purpose of a pilot hole?

A

Improve accuracy of drilling large holes

Eliminate large drill from running off centre

68
Q

What is transition fit?

A

A hole with size limits that are smaller than the shank diameter of the fastener to be installed

Aerospace Technology (2 decks)

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