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Part 66 Module 7 > Module 7.3 > Flashcards

Module 7.3 Flashcards

1
Q

What is the benefit to socket drive screw drivers?

A

Interchangeable drill heads, meaning a need to carry round all different drivers

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2
Q

What are the components of a screw driver?

A

Blade/tip, shank, handle

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3
Q

What is different about the material in the shank than that in the tip?

A

They are both made from the same material (alloy) however, the tip is harder than the shank

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4
Q

How is the blade size classified?

A

Width and length

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5
Q

How much of the screw slot must the screw driver fill to not damage the head?

A

75%

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6
Q

What is the angle of the tip on a Phillips driver?

A

30 degrees

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7
Q

How are Phillips screw driver sizes classified?

A

By a number which refers to head size.

Smaller number = smaller head

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8
Q

What is the angle of the tip of a reed and prince screw driver?

A

45 degrees

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9
Q

What are offset screw drivers used for?

A

In areas of limited space

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10
Q

What is the advantage of a pozidriv screw and screwdriver

A

Improved Phillips. It allows higher torque due to more surface area

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11
Q

Why is it important to be able to tell the difference between a reed and prince and a Phillips?

A

They have different heads, although they look similar.

If the incorrect screwdriver is used then the head of the screw can be stripped.

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12
Q

What is the advantage of a Torx screw head?

A

Can apply an increased torque with less effort, this is due to a high amount of contact area.

less likely to cam-out. (slipping)

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13
Q

What are Torx also known as?

A

Star drives

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14
Q

What is another name for internal hex?

A

Allen key

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15
Q

How can you determine the size of a tri-wing screw?

A

Stamped on head, 0-15

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16
Q

What does the head of a torq-set screw look like?

A

Like a Phillips but the cross is offset

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17
Q

What is a mortorq screw head?

A

4 wings. High torque can be applied

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18
Q

What are ball pein hammers manufactured from?

A

High grade steel

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19
Q

Where are DIN hammers commonly found?

A

In aircraft ‘flyaway’ mechanic tool kits

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20
Q

Soft faced hammers/mallets are designed for what purpose?

A

Transferring a force to an object without damaging the surfaces

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21
Q

How are soft faced mallets graded?

A

Weight of the head

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22
Q

What are the 3 less common hammer types?

A
  • Sheet metal
  • Dead blow
  • Copper and rawhide
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23
Q

What hammer has no place in an aircraft engineers tool kit?

A

Carpenters/claw hammer

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24
Q

How should sets of pliers be chosen to put in a toolkit?

A

High quality alloy steel, with cutting edges that have been induction hardened

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25
Q

How are pliers classified?

A

Function and type of nose

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26
Q

What are the 4 types of aircraft plier joints?

A
  • Lap
  • Fixed
  • Toggle
  • Slip
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27
Q

What does a lap joint plier allow?

A

Greater leverage

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28
Q

What is the use of diagonal pliers?

A

Cutting material

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29
Q

What are combination/linemans pliers used for?

A

General use

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30
Q

What are long nose pliers used for?

A

Smaller, detailed work

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31
Q

What are the types of locking specialty pliers?

A

Multigrip (Swan necks), Vice grip, circlip

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32
Q

What makes swan necks adaptable to most situations?

A

Slip joint

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33
Q

In vice grip pliers, what does the toggle action do?

A

Clamp/lock the jaws

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34
Q

Circlip pliers are used for what purpose?

A

Fitting and removing circlips

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35
Q

What gauges of locking wire are generally used?

A

230 mm nad 150 mm

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36
Q

What are the 3 types of vices?

A
  • Metal working
  • Hand held
  • Machine vices
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37
Q

How is the size of a vice determined?

A

Jaw width and vice capacity when fully open

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38
Q

What are the two types of metal working vices?

A
  • Fixed
  • Rotating
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39
Q

In metal working vices, what is used to protect the metal?

A

Jaw covers, masking tape

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40
Q

A hand held vice is also known as?

A

A clamp

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41
Q

What are handheld vices used for?

A

Holding parts together while an operation takes place

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42
Q

What are machine vices?

A

Smaller vices that can be moved from one location to another

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43
Q

What is another name for c clamps

A

G clamps

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44
Q

What is the benefit for ACME threads in C clamps?

A

Provides a strong clamping force

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45
Q

What is the most common angle of open end spanners?

A

15 degrees, but they can range 0 - 90 degrees

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46
Q

What nut are open end spanners designed to fit?

A

Hex nuts

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47
Q

What are the spanner size increments?

A

1/16’’ typically from 3/16” - 1 1/16”

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48
Q

What is the difference between an open end and a crows foot spanner?

A

A crows foot has a square drive fitted to receive a ratchet to apply a turning force

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49
Q

What should you not use adjustable spanner on aircraft maintenance?

A

Not a tight enough grip, can slip and round off the nut

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50
Q

Where may the use of adjustable spanners be acceptable?

A

On commercially of the shelf items that have non aircraft fittings

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51
Q

What is the common size of adjustable spanners?

A
  • Tool length, 150 mm & 250 mm
  • Jaw opening, 20 mm & 30 mm
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52
Q

What side of the head of an adjustable spanner should the turning force be applied to?

A

The fixed side

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53
Q

What is different about a ring end spanner and an open end spanner?

A

Ring spanners surround the bolt head or nut

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54
Q

What two variations of ring spanners can you have?

A

Hex and Bi-hex

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55
Q

What is the benefit of ratchet ring spanners?

A

Saves time and effort

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56
Q

What is the most important feature of a screw driver handle?

A

Non-conductive

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57
Q

What are the features of a standard combination spanner?

A

One end is ring and the other is open

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58
Q

What are the features of a ratchet ring combination spanner?

A

One end is open the other is a ratchet ring

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59
Q

Ratchet handles are reversible, what does this mean?

A

Used for installation and removal

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60
Q

What is the difference between a Phillips and a reed and prince screwdriver head?

A

Phillips is rounded, Reed and prince is sharp

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61
Q

What are the most common square drive size?

A

1/4, 3/8, 1/2, 3/4”

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62
Q

What screws can a size 1 be used for?

A

Size 1 #5 or smaller

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63
Q

What screws can a size 2 be used for?

A

Size 2 #6 or longer

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64
Q

Which component inside the ratchet head changes the direction of movement?

A

The pawl

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65
Q

What makes breaker bars different from ratchet handles?

A

There is no ratcheting mechanism and the head can be rotated 180 degrees

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66
Q

What are breaker bars used for?

A

‘Break’ the torque of the nut/fastener. A ratchet can be used after

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67
Q

How is a socket secured on too the handle?

A

Spring loaded poppet, this holds the two parts together

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68
Q

What are breaker bars used for?

A

“Break” the torque of the fasteners/nut. So a ratchet handle can be used to finish.

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69
Q

How is a socket secured on to handle?

A

Spring loaded poppet holds the two parts

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70
Q

What is a type 1 torque wrench?

A

Indicates torque via a mechanical dial or electrically. Up to operator to stop at desired torque

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71
Q

How does a type 2 torque wrench indicate that the torque valve had been reached?

A

Audible, visible signal or feel or a combination

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72
Q

What are the two main types of type 2 wrenches?

A

-adjustable
-fixed

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73
Q

Once finished with an adjustable torque wrench what should be done?

A

Put to the lowest setting

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74
Q

When choosing a torque wrench for a torque valve what should be done?

A

Look for a torque wrench that the torque value falls in the middle of the range

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75
Q

What is the working range of a mechanical torque wrench?electrical?

A

Mechanical 20-80% of its full range electrical is 10-100%

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76
Q

What is the formula for finding torque applied with an extension bar?

A

M1=M2*L1/L2

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77
Q

What 2 things can a rule be used for?

A

Measuring and a straight edge

78
Q

What does a combination set incorporate?

A

Rule, square head, spirit level, protractor head, centre head, clamp, 90 degrees and 45 degree lines

79
Q

How is an engineering square sized?

A

Length of the inside edge of the blade

80
Q

What are the 2 features of an engineering square?

A

-Blade
-Stock

81
Q

What 3 things can an engineering square be used for?

A

-Mark lines at 90 degrees
-check internal angles
-check external angles

82
Q

What are the 2 tips of a scriber?

A

-angled tip
-straight tip

83
Q

Why must use of a scriber on al-clad be avoided?

A

It will damage the protective pure aluminium layer and let corrosive agents in

84
Q

What are dividers used for?

A

Arcs and circles, distance between parts and to transfer from a rule

85
Q

When must dividers not be used?

A

When marks on lines must be drawn on a metal surface

86
Q

What are the 2 common types of callipers?

A

-inside
-outside

87
Q

What are radius gauges used for?

A

Measuring internal or external radii for example rounding corners to a stated radius

88
Q

What principle should be adapted when using feeler gauges?

A

Go or no go technique

89
Q

What is the angle of the top on a prick punch?

A

30 or 60 degrees

90
Q

What is the purpose of a prick punch?

A

Used as mark that is to be enlarged by a centre punch before drilling

91
Q

What type of work is 60 degree tip used for centre punching? What about 90 degrees?

A

60-light work
90-general work

92
Q

What is the purpose of an automatic centre punch?

A

Negates the need for a hammer

93
Q

What is the purpose of a starting (taper) punch?

A

To start driving out a bolt pin.Once it almost fills the bolt hole finish with a pin punch

94
Q

What are pin punches used for?

A

To drive out rivet shanks

95
Q

What cut do yellow aviation snips do? Red? Green?

A

Yellow cut straight
Green cut right
Red cut left

96
Q

What is a 14tpi hack saw used to cut? What about 18?

A

14 tpi - cutting steel
18 tpi - solid aluminium, bearing material, tool steel, cast iron etc

97
Q

What is a 24 tpi hack saw used for? 32 tpi?

A

24 tpi - tubing, pipe, brass, copper channel and angle iron etc
32 - twin walled tubing and sheet metal

98
Q

What is a hacksaw blade made of?

A

High grade steel or tungsten steel

99
Q

What stroke does a full hacksaw cut on?

A

Forward stroke away from you

100
Q

What is the cutting direction of a junior hacksaw?

A

Towards the operator

101
Q

When would you use a mini hacksaw?

A

Used in confined space

102
Q

What is a file used for?

A

Used to shape metal by cutting and abrasion

103
Q

What is the difference between the metal in tang and the nest of the file?

A

The tang undergoes further heat treatment to make it softer, less brittle and resistant to damage

104
Q

What is the difference between hand files and flat files?

A

Hand files are tapered only for thickness through the whole length. Only one edge is cut the other is plain.

Flat files are tapered in the last 1/3 of its length in width+thickness. No safe edge.

105
Q

What angle are the teeth on single cut files?

A

65-85 degrees

106
Q

What angle are both cuts on a double cut file?

A

70 to 80 degrees and 40 to 50 degrees

107
Q

What stroke is the cutting stroke of a file?

A

Forward stroke

108
Q

What are the 4 grades of cut?

A

-bastard cut
-second cut
-smooth cut
-rasp cut
(American pattern files)

109
Q

What set of files are most commonly used by aircraft engineers?

A

Needle files

110
Q

How do you keep a file corrosion free?

A

Applying a light coating of oil

111
Q

What should be used to clean a file?

A

Wire brush or file card

112
Q

What are the 3 filing techniques?

A

-straight (forward) filing
-cross filing
-draw filing

113
Q

What is deburring?

A

Removal of the fine slivers of metal the hang onto the edge of the material

114
Q

What mustn’t be used to debur a piece of metal? And what should be?

A

Do not use a file use a handheld deburrer

115
Q

What are the 3 main types of drills?

A

Hand drills and braces, pneumatic drills and electric drills

116
Q

What are the benefits of using a handbrake over a screwdriver?

A

Allows for higher pressure pushed through to the fastener and a greater torque

117
Q

Are drill bits controlled items?

A

They must be accounted for at the end of a shift

118
Q

What is the purpose of the flute?

A

To remove dwarf from the drilled hole and allows cutting fluid to reach drill tip

119
Q

What is the shank of the drill?

A

The plain part of the drill that goes inside the drill chuck

120
Q

What provides the torsional strength in a drill bit?

A

The land portion between adjacent flutes

121
Q

What is the point angle for a drill bit that cuts aluminium and mild steel?

A

118 degrees

122
Q

What is the point angle for a drill bit that cuts aluminium, high tensile steel, CRES B sheet steel?

A

135 degrees

123
Q

What point angle is used for cutting plastic material?

A

30 to 70 degrees
Hard rubber and fibre 60 degrees

124
Q

What does an increased web thickness give a drill bit?

A

Strength and rigidity

125
Q

What tool should be used to countersink many rivet holes to the same depth?

A

Microstop countersink tool

126
Q

What is the most common countersink angle?

A

100 degrees

127
Q

What is the purpose of spot facing?

A

Method used to cut a flat or seat area for bolt heads

128
Q

What is back spot facing?

A

When spot facing must be done in reverse. Work piece cuts back towards spindle.

129
Q

What is important about the pilot on a spot face and countersinking tool? (Size)

A

Must be 1/32 inch smaller

130
Q

What is the purpose of reaming?

A

Drill bits leave an inaccuracy in size so reaming enlarges the hole to an exact size

131
Q

In machine reamers what is different about the shank?

A

Morse tapered shank

132
Q

What is a key drift used for?

A

For pushing the reamer out of the sleeve

133
Q

What reamers are less accurate?

A

Adjustable reamers

134
Q

What must be ensured when removing a reamer from a drill hole?

A

Do not revere the spin of the reaming

135
Q

What are taps used for?

A

Cutting internal threads inside a drilled hole

136
Q

What are the 3 types of hand tap sets?

A

-taper
-plug
-bottoming

137
Q

What are the 4 classifications of dies ?

A

National coarse, fine, extra fine and pipe

138
Q

What are dies used for?

A

Cutting external threads on a cylindrical material

139
Q

What is the purpose of chamfers on the dies?

A

Facilitate easy starting

140
Q

What are the 2 types of dies?

A

-Solid
-Adjustable

141
Q

What is the stock?

A

Name of the tool used to turn and hold the die

142
Q

What is the purpose of caulties of the dies?

A

Allow for removal of chips

143
Q

What is the purpose of a collet?

A

To allow for a tight grip on drill bits on angle drills. Use of larger bits

144
Q

To ensure safety with electronic tools what precautions should be taken?

A

Grounding, double insulated and powered by low voltage

145
Q

How are bench mounted pillar drills usually powered?

A

Belt driven

146
Q

How are floor mounted pillar drills typically driven?

A

Belt or chain

147
Q

What are the risks when using too high of a speed for a drill bit?

A

Dulling cutting edges quietly & high temps

148
Q

What are the risks of using too low of a cutting speed for a drill bit?

A

Breaking the drill bit

149
Q

What does lubricant do when drilling?

A

Cool the bit and allows swarf to leave freely

150
Q

When must a work piece not be clamped?

A

When it’s heavy enough to not move

151
Q

How must an abrasive wheel be tested before use?

A

Tapped, gently with a non metallic object

152
Q

What are the most commonly used power tools?

A

Pneumatic

153
Q

What are the most common drill grips?

A

Pistol or straight

154
Q

What is the air supply to a tool typically?

A

90-110psi

155
Q

When are angle drills used?

A

Tight or limited access

156
Q

What angles of angles drills are available?

A

30,45 & 90 degrees

157
Q

What is the purpose of a drill stop?

A

Controls the depth of drilling

158
Q

What is the purpose of a drill guide?

A

Keeps the drill at 90 degrees

159
Q

What speed does a slow rivet gun move at?

A

900-2500 blows per minute

160
Q

What is the purpose of a nut plate drill jig?

A

Accurate drilling of rivet holes

161
Q

What is a blind rivet puller for?

A

Blind fasteners

162
Q

What is the function of a rivet shaver?

A

Trims protruding mandrills of cherry rivets

163
Q

What are the 4 types of precision measuring tools?

A

Vernier callipers, micrometers, dial indicators, go/no go gauge

164
Q

How do you read a micrometer?

A

Look for the last visible line of the sleeve, then add the line on the thimble

165
Q

How do you read a vernier calliper?

A

Look for the line closest to the movable scale. Take the valve on the left of the 0 the book for when the seals line up. Add these two value. Always look at the scale.

166
Q

What are the two types of DTI?

A

Plunger and lever

167
Q

What are DTIs used for?

A

Alignments of shaft and surface smoothness accuracy of 0.01 mm

168
Q

What are the go/no go gauges used for?

A

Quickly and easily determining whether a part is within limits

169
Q

What can go/no go gauges determine?

A

Checking seating of control cables

170
Q

What does the difference between high and low represent?

A

The acceptable tolerance for the part

171
Q

What are the 2 types of application used for greases?

A

Hand application or grease gun

172
Q

What must accompany all lubricants?

A

An MSDS

173
Q

What is the most common grease gun fittings?

A

Zero fittings

174
Q

Where are flush type fittings used?

A

Low clearance areas

175
Q

What 2 features of the PMME increase its accuracy?

A

Iron core and cured pole pieces

176
Q

What are the uses of the PMMC?

A

DC ammeter, DC voltmeter, multi range ammeter

177
Q

How do you connect the ammeter and voltmeter?

A

Ammeter in series
Voltmeter in parallel

178
Q

When should a shunt be used?

A

Range of current greater than max deflection

179
Q

When using a multi range ammeter what must you ensure?

A

Start readings at the highest range to not overload the circuit

180
Q

What must you do when using an ammeter?

A

Disconnect aircraft power as the ammeter has its own small battery

181
Q

What is the difference in the scale of a series ohm meter and a shunt?

A

In series 0 in the right and infinity on the left. In shunt 0 on the left and infinity on the right.

182
Q

What ohmeter would you use if working in a fuel tank?

A

Safety ammeter as it has no battery and is powered by a hand crank, 0.5 ma

183
Q

How can you measure AC on a moving coil meter?

A

By first rectifying it into DC

184
Q

Why is it more desireable to use a full wire rectifier?

A

Higher sensitivity compared to half wave

185
Q

What is the most common full wire rectifier?

A

Bridge type rectifier

186
Q

What is the most common multimeter and what do they measure?

A

Measure AC & DC, current,voltage and resistance. Most common is AVO multimeter

187
Q

What is the most common digital multimeter?

A

Fluke 115

188
Q

What is the range of a digital multimeter?

A

AC+DC V to 600V , 10A (20A for 30 secs)

189
Q

What are some precautions that should be taken when using a digital multimeter?

A

Don’t apply power to the aircraft. Disconnect system power.

190
Q

What is the benefit to the use of a current clamp?

A

Allows for measurement without the need for physical contact

Part 66 Module 7 (16 decks)

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