Mod 7 Exam Questions

Question 1

What colour is an oxygen cylinder used on an aircraft

A: Brown

B: Red

C: Green

Answer 1

C: Green

Question 2

If oxygen bottle connections are lubricated with grease?

A: It may become a fire hazard

B: The grease will dissolve

C: It will cause condensation

Answer 2

A: It will become a fire hazard

Question 3

A CO2 - fire extinguisher cannot be used on Electrical Fires?

A: True

B: False

C: Only if it is outside the aircraft

Answer 3

B: False

Question 4

When drilling a hard material such as stainless steel?

A: Slower than aluminium is required

B: Faster speed than aluminium is required

C: The same speed as aluminium is normally used

Answer 4

A: Slower than aluminium is required

Question 5

The metric system of measurement is?

A: The S.I. system

B: The imperial system

C: The NAS system

Answer 5

A: The S.I. System

Question 6

Water can only be used on?

A: Class A fires

B: Class A+B fires

C: Class A+C fires

Answer 6

A: Class A fires

Question 7

Which is the most accurate way of measuring a drill bit?

A: Micrometer

B: Vernier

C: Drill and Wire Gage

Answer 7

A: Micrometer

Question 8

When would you use dimpling instead of countersinking?

A: When the material is too thin to countersink

B: Where access is limited

C: When the material is cladded

Answer 8

A: When the material is too thin to countersink

Question 9

What is the name “Pork Chop” referring too?

A: Torque wrench

B: Drill attachment

C: Nothing at all

Answer 9

B: Drill attachment

Question 10

The smallest HSS drill normally used is?

A: Size 1

B: Size 40

C: Size 80

Answer 10

C: Size 80

Question 11

A safety precaution necessary while handling a pneumatic drill is to ensure

A: That the tool is only tightened in the chuck using one keyhole

B: That the drill motor does not start running with the key in the chuck

C: That the drill motor is running with the key in the chuck

Answer 11

B: That the drill motor does not start running with the key in the chuck

Question 12

Why is coin dimpling method preferred when dimpling holes in sheet material

A: It is easier to fabricate a coin dimple

B: It produces a more satisfactory aerodynamic skin surface

C: There is less tooling required to fabricate a coin dimple

Answer 12

B: It produces a more satisfactory aerodynamic skin surface

Question 13

When would you use Hot coin dimpling?

A: When the material is too thin

B: When the material is highly stressed

C: When the material is too weak

Answer 13

B: When the material is highly stressed

Question 14

What is each single notch on a Micro-Stop measured in?

A: 1 inch

B: 0.100 inch

C: 0.001 inch

Answer 14

C: 0.001 inch

Question 15

Which of the following is used to measure the bow in a pipe?

A: A go or not got gauge

B: A three point trammel

C: Adjustable thread calliper gauge

Answer 15

B: A three point trammel

Question 16

What is the common drill angle to use when drill metal?

A: 40 degrees

B: 59 degrees

C: 75 degrees

Answer 16

B: 59 degrees

Question 17

What is the most common drill bit used?

A: Taper

B: Drill reamer

C: Jobber

Answer 17

C: Jobber

Question 18

What part of the micrometer are measurements indicated on?

A: Thimble

B: Lock Nut

C: Anvil

Answer 18

A: Thimble

Question 19

A dial indicator is used to measure which of the following?

A: Indicate time

B: Measure shaft alignment

C: Measure shaft diameter

Answer 19

B: Measure shaft alignment

Question 20

What are the words “Zerk / Tecalemit” referring to?

A: Sealant guns

B: Lubrication guns

C: Tyre inflation guns

Answer 20

B: Lubrication guns

Question 21

Where would you find ATA chapter 49?

A: Section 1 MM General

B: Section 4 MM Power Plant

C: Section 2 MM Airframe Systems

Answer 21

C: Section 2 MM Airframe Systems

Question 22

Temporary revisions to MM are printed on?

A: Blue paper

B: Yellow paper

C: Green paper

Answer 22

B: Yellow paper

Question 23

Under the ATA system which chapter covers the windows

A: Chapter 57

B: Chapter 56

C: Chapter 58

Answer 23

B: Chapter 56

Question 24

Under the ATA system which chapter covers Landing Gear

A: Chapter 32

B: Chapter 33

C: Chapter 34

Answer 24

A: Chapter 32

Question 25

Under the ATA system which chapter covers Lights A: Chapter 32 B: Chapter 33 C: Chapter 34

Answer 25

B: Chapter 33

Question 26

A dash in beside the number in the item column in the IPC what does it mean? A: The item is not shown in the drawing B: The item is expensive C: The item is not made any more

Answer 26

A: The item is not shown in the drawing

Question 27

What information would you find on a detail drawing? A: How to fabricate the part B: How to assemble the part C: How to install the part

Answer 27

A: How to fabricate the part

Question 28

A revision to an engineering drawing would be found where in an orthographic drawing? A: As a DDA in the notes column B: In the revision block in the upper right hand corner C: As a DDA in the revision block in the upper right hand corner

Answer 28

B: In the revision block in the upper right hand corner

Question 29

Where would you usually find flag notes on a drawing? A: General Notes Area B: Title block C: Revision block

Answer 29

A: General Notes Area

Question 30

In a transition for the hole will be which of the following? A: Bigger than the shaft B: Smaller than the shaft C: Can be either of the above

Answer 30

C: Can be either of the above

Question 31

Where on a drawing will you find the general tolerance printed? A: In the title block B: In the revision box C: In the notes area

Answer 31

A: In the title block

Question 32

What does the letters ISO stand for? A: International Systems Organisation B: International Standards Organisation C: International Safety Office

Answer 32

B: International Standards Organisation

Question 33

What angle is used when drafting an isometric drawing? A: 45 degrees B: 60 degrees C: 120 degrees

Answer 33

C: 120 degrees

Question 34

What do the letter DDA stand for? A: Detailed Dimensional Aspect B: Douglas Drawing Association C: Drawing Departure Authorisation

Answer 34

C: Drawing Departure Authorisation

Question 35

What is the name given to the pages that follow all production drawings? A: Station Marker Drawings B: ADCN’s C: Parts List

Answer 35

C: Parts List

Question 36

When checking the size of a shaft is within limits using gap gauges? A: The GO gauge is the upper limit B: The NOT GO gauge is the upper limit C: The GO gauge is the lower limit

Answer 36

A: The GO gauge is the upper limit

Question 37

Which of the following is used to measure the bow in a pipe? A: A go or not go gauge B: A three point trammel C: Adjustable thread calliper gauge

Answer 37

B: A three point trammel

Question 38

There are three types of fits in engineering practices, which is the correct list? A: Interference fit; loose fit; transition fit B: Interference fit; clearance fit; transition fit C: Clearance fit; transition fit; loose fit

Answer 38

B: Interference fit; clearance fit; transition fit

Question 39

A clearance fit fastener is one which? A: Is one which the shaft is smaller than the hole B: Is one where the shaft is larger than the hole C: Is not a true term in relation to fasteners

Answer 39

A: Is one which the shaft is smaller than the hole

Question 40

What instrument can be used to measure bearing radial wear? A: Vernier B: Dial indicator C: Optical micrometer

Answer 40

B: Dial indicator

Question 41

When measuring breakaway torque on a bearing; what condition must the bearing be in? A: Free of lubrication B: Run at high speed C: Fully lubricated and at high speeds

Answer 41

A: Free of lubrication

Question 42

When might high intensity light beams be used at an airport? A: Loss of communication with tower B: When towing an aircraft C: When visibility is very poor

Answer 42

A: Loss of communication with tower

Question 43

If you tie down an aircraft using Manila rope what are the risks? A: It shrinks if it gets too dry B: It slackens off too much C: It shrinks if it gets wet

Answer 43

C: It shrinks if it gets wet

Question 44

What does the MME stand for in relation to an operator’s quality system? A: Manual Maintains Equipment B: Maintenance Management Exposition C: Maintenance Manual Exposition

Answer 44

B: Maintenance Management Exposition

Question 45

What voltage and frequency is supplied be a GPU? A: A ground power unit supply’s 400 volts 115Hz B: A ground power unit supply’s 115 volts 400 Hz C: A ground power unit supply’s 220 volts 50 Hz

Answer 45

B: A ground power unit supply’s 115 volts 400 Hz

Question 46

After opening the FWD passenger door white whiskers were found on the upper and lower edges of the door fold plates, what does this indicate? A: That water stains are evident B: The material is corroded aluminium C: The material is corroded magnesium

Answer 46

C: The material is corroded magnesium

Question 47

Vital structural members to be inspected individually are called? A: Structural Significant Item (SSI) B: Critical Structure (CS) C: Non Critical Structure (NCS)

Answer 47

A: Structural Significant Item (SSI)

Question 48

Corrosion measuring between .001” and .010” is classed as? A: Light B: Moderate C: Severe

Answer 48

B: Moderate

Question 49

Corrosion measuring below 0.001 is classed as? A: Light B: Moderate C: Severe

Answer 49

A: Light

Question 50

Corrosion measured greater than 0.010” is measuring as? A: Light B: Moderate C: Severe

Answer 50

C: Severe

Question 51

What type of defect will X-Ray inspection detect? A: Disbonding and Delamination B: Delamination only C: Cracks and Corrosion

Answer 51

C: Cracks and Corrosion

Question 52

What are the three types of damage on an aircraft? A: Allowable damage, repairable damage and replacement of part B: Repairable damage, non-repairable damage and replacement of part C: Non-Allowable damage, component repair and repairable damage

Answer 52

A: Allowable damage, repairable damage and replacement of part

Question 53

# Define a TVC A: The visible corrosion B: Thorough visual check C: Totally visual check

Answer 53

B: Thorough visual check

Question 54

Which of the following is the best medium to use for blast cleaning aluminium skin? A: Glass B: Sand C: Steel Balls

Answer 54

A: Glass

Question 55

When installed, a lock bolt is held in position with? A: A Nut B: A washer C: A crushable collar

Answer 55

C: A crushable collar

Question 56

At BS 500A STR12 having removed corrosion what is considered the correct tool for dept evaluation? A: Feeler Gauge B: Vernier Callipers C: Depth Dial Gauge

Answer 56

C: Depth Dial Gauge

Question 57

During an inspection of a composite spoiler using X-RAY black spots were discovered - what does this indicate? A: Water contamination B: Corrosion Damage C: Magnesium Deposited

Answer 57

A: Water contamination

Question 58

Which of the following is important when checking for a bird strike? A: Aircraft speed B: Flight control position C: Rudder Position

Answer 58

B: Flight control position

Question 59

An aircraft in flight may have problems with its avionics, what is a possible problem area in relation to avionics damage in flight? A: Not enough static discharge wicks on the belly B: Badly mounted pitot static probes C: High Interesting Radiated Fields (HIRF)

Answer 59

C: High Interesting Radiated Fields (HIRF)

Question 60

Who produces a maintenance planning document (MPD) ? A: The manufacturer B: The FAA C: The IAA

Answer 60

A: The manufacturer

Question 61

Which of the following documents should accompany a class two product? A: An export certificate of airworthiness B: EASA form 1 C: Certificate of Conformity

Answer 61

B: EASA form 1

Question 62

When checking the size of a shaft is within limits using gap gauges? A: The GO gauge is the upper limit B: The NOT GO gauge is the upper limit C: The GO gauge is the lower limit

Answer 62

A: The GO gauge is the upper limit

Question 63

A Clearance fit fastener is one which? A: Is one where the shaft is smaller than the hole B: Is one where the shaft is larger than the hole C: Is not a true term in relation to fasteners

Answer 63

A: Is one where the shaft is smaller than the hole

Question 64

An Interference fit fastener is one which? A: Is one where the shaft is smaller than the hole B: Is one where the shaft is larger than the hole C: Is not a true term in relation to fasteners

Answer 64

B: Is one where the shaft is larger than the hole

Question 65

What do you need to know when ordering the correct grip length rivets for a repair? A: The over all size of the part, the number of rivets required B: The material thickness, the diameter of the holes C: The part of the aircraft to be worked on, the diameter of the holes

Answer 65

B: The material thickness, the diameter of the holes

Question 66

On what section of the fastener quadrant will you find about welding? A: NE section B: SE section C: SW section

Answer 66

B: SE section

Question 67

Which of the following determines the hole diameter for a skin repair A: Material Alloy B: Thickness of the thinner sheet C: If you have to use countersink or protruding head rivets

Answer 67

B: Thickness of the thinner sheet

Question 68

When riveting a row of rivets what is the rule of thumb you can measure the bucked tails size to? A: 1.3 times the diameter and 1 times the height B: 1.5 times the diameter and 1 times the height C: 1.5 times the diameter and the .5 times the height

Answer 68

C: 1.5 times the diameter and the .5 times the height

Question 69

On a fastener quadrant where would you find information about grip length? A: SW quadrant B: NE quadrant C: SE quadrant

Answer 69

B: NE quadrant

Question 70

What is the advantage of using rivets on an aircraft over other types of fasteners? A: They look better on the skin B: They have better elasticity C: They have a greater variety of sizes

Answer 70

B: They have better elasticity

Question 71

What is the edge distance when riveting? A: 4 to 5 times the diameter of the rivet B: 2.5 to 4 the diameter of the thinnest sheet C: 2 to 2.5 times the diameter of the rivet

Answer 71

C: 2 to 2.5 times the diameter of the rivet

Question 72

What is the advantage of skin repairs done with direct riveting? A: This method allows you to use larger rivet sizes B: This allows you to use “Ice Box” Rivets C: There is more of the impact used on the rivet

Answer 72

C: There is more of the impact used on the rivet

Question 73

A factor which determines the minimum spacing between rivets is the? A: Thickness of the thinnest sheet of material being riveted B: Length of the rivets being used C: The number of rivets required to be used in a repair patch

Answer 73

A: Thickness of the thinnest sheet of material being riveted

Question 74

What is the minimum clearance between pipes tubing and hoses A: 1/32 B: 3/32 C: 1/32 per 10 inches of pipe

Answer 74

B: 3/32

Question 75

What is the maximum allowable angular mismatch for a flared pipe installation? A: A deviation of 1.5 degrees B: A deviation of 2 degrees C: A deviation of 3.5 degrees

Answer 75

B: A deviation of 2 degrees

Question 76

In relation to an aircraft bearing the term Brinelling relates to indentations on the ....? A: On the bearing race caused by high dynamic load B: On the bearing race caused by high static loads C: On the bearing race caused by load reversal

Answer 76

A: On the bearing race caused by high dynamic load

Question 77

In relation to a bearing, the term creep relates to? A: Incorrect interference fit on the other or inner race B: Indication of bluing on the elements and raceways C: Indications of putting on the raceways

Answer 77

A: Incorrect interference fit on the other or inner race

Question 78

Where would you find the part number of a bearing? A: Outer face B: Inner face C: Thrust face

Answer 78

C: Thrust face

Question 79

When aircraft chains are inspected for elongation, what is the maximum allowed? A: A total of 4% over 10 ft lengths B: 2% maximum in total length C: 0.02% per 4 linkages

Answer 79

B: 2% maximum in total length

Question 80

A non-reversible chain is used because it? A: Has movement in one direction only B: Can’t be put on the wrong way C: is a non-return chain

Answer 80

B: Can’t be put on the wrong way

Question 81

Pulling a cloth along a cable is mainly used for? A: Cleaning only B: Checking for fraying C: Checking for excess lubricant

Answer 81

B: Checking for fraying

Question 82

What bearing should be employed where heavy radial loads are required to be carried? A: Standard ball bearing B: Standard roller bearing C: Spherical roller

Answer 82

B: Standard roller bearing

Question 83

The maximum deviation of a control cable from a straight line A: 2 degrees B: 3 degrees C: 4 degrees

Answer 83

B: 3 degrees

Question 84

The bearing fitted on to control cable pulleys are? A: Sealed and need no further lubrication B: Temporarily sealed but require lubrication at regular intervals C: Lubricated with aero shell fluid 1

Answer 84

A: Sealed and need no further lubrication

Question 85

The number of threads which may be exposed in a turnbuckle after adjustment is? A: Non relevant B: Three threads minimum either side C: Three threads maximum either side

Answer 85

C: Three threads maximum either side

Question 86

Under what size is double flaring normally carried out on pipes? A: Under 1/2” B: Under 3/8” C: Under 1”

Answer 86

B: Under 3/8”

Question 87

When torquing when would you use the following ; TW = (TA)(L) ÷ D A: When you’re extension is at an angle of + 15 degrees B: When you are at -15 degrees C: When you are at 90 degrees

Answer 87

A: When you’re extension is at an angle of + 15 degrees

Question 88

When selecting a spot-facing tool the diameter of the pilot must be smaller by? A: 1/32” B: 1/16” C: 1/64”

Answer 88

A: 1/32”

Question 89

What is the max % you should only use the scale of a torque wrench to? A: 20% B: 50% C: 80%

Answer 89

C: 80%

Question 90

What is the common degree for countersinking used in aviation? A: 82 degrees B: 90 degrees C: 100 degrees

Answer 90

C: 100 degrees