5th Six Month Final Flashcards
(289 cards)
1
Q
105-1. A metals ability to change shape without breaking is called malleability or
A
ductility
2
Q
105-2. The ability of a metal to return to its original shape after being deformed is called
A
elasticity
3
Q
105-3. A solid and a liquid can exist together at the? Adding heat melts more of the solid, but does not change the?
A
melting point
Temperature
4
Q
105-4. Alloys that contain iron as the base metal are known as?
A
steel
5
Q
105-5. The speed and ease with which a metal can be cut on a machine tool is called its?
A
machinability
6
Q
105-6. The maximum amount of stress a material can exert is called its
A
yield strength
7
Q
105-7. Ts=F/A=
9,000lbs / 0.2 sq. in.=
A
45,000 psi
8
Q
105-8. At high temperatures, an extremely slow, continuous distortion of certain metals produces another type of failure called?
A
creep
9
Q
105 - 9. What is the mass of a material per unit of volume?
A
Density
10
Q
105 - 10. What is the ratio between the density of a given material and the density of water called?
A
Specific gravity
11
Q
105 - 11. Permanent mold casting use?
A
both metal cores and sand cores
12
Q
105 - 12. What kind of force makes the metal flow away from the center and against the sides of the mold?
A
Centrifugal
13
Q
105 - 13. Die casting is the most _________ of all casting methods. It is used in casting metals having no iron in them. These metals are called _________ metals.
A
rapid
nonferrous
14
Q
105 - 14. The most common method of ________ is called upsetting.
A
cold forging
15
Q
105 - 15. What is usually made from rod stock. The rod stock may be pulled through a tapered die.
A
Wire
16
Q
105 - 16. Cast iron has a high carbon content with a relatively low melting point which makes it easier to cast than ________ and will break easily.
A
steel
17
Q
105 - 17. A high carbon content makes the molten iron easy to
A
Break
18
Q
105 - 18. Malleabilized iron is ________ and less brittle than white cast iron but it has ________ resistance to wear than gray iron.
A
softer
better
19
Q
105 - 19. _________ __________ cast iron is used in making parts that must be hard and tough but not brittle.
A
High-alloy
20
Q
105 - 20. What kind of furnaces include the open hearth, the basic oxygen, and the electric furnace.
A
Steelmaking
21
Q
105 - 21. Of all the elements that may be included in steel, _________ is the most important.
A
carbon
22
Q
105 - 22. Both the AISI and the SAE coding systems identifies each code number by the ________ ________ of one kind of ________.
A
chemical composition
steel
23
Q
105 - 23. To make a spark test you simply hold the piece of metal against a spinning grinding wheel. The ________ _________ within the sparks will help you identify the metal.
A
color bursts
24
Q
105 - 24. __________ quality sheet metals have a matte finish that holds paint well
A
Commercial
25
105 - 25. All Stainless steel's contain?
chromium
26
105 - 26. Uneven heating and cooling causes _________, warp, and even crack in the area around the weld
Distortion
27
105 - 27. You can anneal the star drill by slowly heating it with an oxacetylene torch to a temperature above it's critical temperature and allow it to?
cool very slowly.
28
105 - 28. With your broken gear fully annealed, you may now grind off the edges in preparation for welding. By ________ the whole gear to this temperature you can greatly reduce internal stresses that would otherwise build up during welding
heating
29
105 - 29. Low-carbon steels are more often .
forged
30
105 - 30. Steels containing ________ to _________ __________ are used as cutting tools and hand tools
0.55 to 1.00% carbon
31
105 - 31. _________ _________ makes the alloys even harder and stronger.
Cold working
32
105 - 32. A copper alloy containing a little lead is much ?
easier to machine
33
105 - 33. _________ __________ contains 36% to 50% zinc
Beta brass
34
105 - 34. Muntz metal is the __________ of the brasses
strongest
35
105 - 35. The copper alloy most widely used for casting is called
ounce metal
36
105 - 36. Aluminum _________ coating forms rapidly on its surface when metal is exposed to air.
oxide
37
105 - 37. Four digit number in system to describe aluminums. The _________ digit indicates the main alloying element
first
38
105 - 38. Thin layers of aluminum can be rolled onto a base metal to improve its appearance, or durability, or both. This process is called?
Cladding
39
105 - 39. Aluminum's strength decreases greatly as the __________ of metal rises.
temperature
40
105 - 40. Intermediate temperature solders melt at temperatures of _________ to _________.
500*
To
700*
41
105 - 41. Magnesium is extracted from brines and ores by two methods _________ and _________
electrolysis
| reduction
42
105 - 42. __________ has a lower temperature strength than EK, EZ, and ZE alloys
AZ
43
105 - 43. The letter "a" following the alloy designation indicates an _________ sheet.
annealed
44
105 - 44. Magnesium gas welding should be used only for _________ repairs
emergency
45
105 - 45. The usual melting and casting methods cannot be used for _________. An arc melting process is used in an atmosphere of inert gas called_________
titanium
| argon
46
105 - 46. Various proportions of the lead and tin are alloyed to make?
solder
47
105 - 47. Lead wool can be used instead of molten lead to form a metallic cold _______.
seal
48
105 - 48. __________ is used in toasters.
Nichrome
49
105 - 49. __________ is widely used as a corrosion resistant coating for steel sheet the process is called galvanizing.
Zinc
50
105 - 50. The proper lubricants to use when machining zinc include?
lard oil
51
106 - 1. A liquid has a __________ volume but it's shape can _________.
fixed
| change
52
106 - 2. In the metric system, _________ is measured in kilograms per cubic meter (kg/m^3).
density
53
106 - 3. _________ is a cooling process
Evaporation
54
106 - 4. A __________ liquid is one that has a low boiling point
volatile
55
106 - 5. The solubility is usually _________ at the boiling point of a liquid.
zero
56
106 - 6. All plastics can be __________ as either thermoplastics or thermosets
classified
57
106 - 7. When choosing a plastic material, the __________ of the material is important
performance
58
106 - 8. Reinforcing- apply the _________ to the inside surface of a filament wound tank
patch
59
106 - 9. When drilling plastic, reduce the feed rate just before the drill point
penetrates the other side of the material.
60
106 - 10. Patching- clean __________ __________ of the material with solvent to remove oils and dirt.
both sides
61
106 - 11. With Elastomers, __________ of the original shape is recovered almost immediately
most
62
106 - 12. Chemicals called __________ reduce deterioration caused by oxidation
antioxidants
63
106 - 13. Properties of rubber- class T resists damage by extreme
high and low temperatures
64
106 - 14. The _________ sulfur used the __________ the vulcanized product.
less
| softer
65
106 - 15. Flexibility is important in the coatings for certain __________ and __________.
wires and cables
66
106 - 16. A radial cut is produced by cutting a log __________, with the cut going through or very near the _________ of the log.
lengthwise
| centerline
67
106 - 17. Measurements of _________ __________ refer to the actual length of a board.
running feet
68
106 - 18. Best veneer quality of plywood is?
N - natural finish veneer
69
106 - 19. Each Knot ________ the wood.
weakens
70
106 - 20. In _________, the pilot hole should be only half as deep as the length of the screw.
softwoods
71
106 - 21. Air entrained concrete is for building structures?
exposed to severe cold.
72
106 - 22. Cinder block is used?.
above ground
73
106 - 23. Type N is a __________
| ___________ mortar.
medium strength
74
106 - 24. Special plasters include those with vermiculite or perlite aggregates provide _________
__________ and __________.
fire protection
| insulation
75
106 - 25. To determine correct glass size for a window pane, measure the sash and deduct ?
1/16 to 1/8 inch.
76
106 - 26. ___________ Insulation and some synthetic products will burn.
Vegetable
77
106 - 27. Installing blanket insulation- use _________ __________ or a ___________ _________ to cut the insulation. Use proper cutting tools
large shears or a sharp knife
78
106 - 28. Reducing machine vibration. The remaining vibration can be reduced by __________ ___________ or ducts with lead sheet.
wrapping pipes
79
106 - 29. An asphalt coating serves as an insulation adhesive ________ _________
above ground.
80
106 - 30. The best fire protection is using building materials that cannot burn and are chemically treated. And should have the best possible fire extinguishing equipment
All of the above
81
106 - 31. Try to use one that is similar to the previous coating that will _________ _________ by providing long-lasting protection to the material
reduce maintenance
82
106 - 32. Surface preparation is the single most important factor for success in applying a _________ __________
protective coating.
83
106 - 33. White blasting creates the __________ __________ _________.
best anchor pattern
84
106 - 34. Safety colors and their uses. __________ is for safety- safety showers, first aide stations, first aid kit's, gas masks, safety instruction signs, and structures.
Green
85
106 - 35. Color codes for piping- _________ is for fire protection, water, foam, and carbon dioxide.
red
86
106 - 36. PH scale- numbers __________ seven indicate acidity.
below
87
106 - 37. _________ ___________ __________is the safest industrial cleaning solvent
Dry cleaning solvent
88
106 - 38. Synthetic lubricants offer more heat and fire resistance and are better for
high temperature uses
89
106 - 39. Cyanide is the most dangerous chemical in .
electroplating
90
106 - 40 To __________ __________ ________, you should always use grounding devices on hoses, nozzles, tanks, and metal containers use only approved grounding devices
avoid fuel fires
91
106 - 41. Curing is the
completion of all chemical and physical reactions that affect bonding.
92
106 - 42. Water soluble gums and starches from plants are made into natural vegetable glues called .
mucilage
93
106 - 43. __________ __________ __________ is a high strength Adhesive joints and has the greatest surface area
bevel lap joint
94
106 - 44. rubber tapes are good for
Electrical repairs
95
106 - 45. High temperature tapes are coated with fluorocarbon Or silicone adhesives and are used where service conditions include
High temperatures
96
106 - 46. __________ is chemically inert at room temperature
Carbon
97
106 - 47. __________ ___________ carry electric current to and from the rotating armature of the motor
Carbon Brushes
98
106 - 48. Noisy operating electrical equipment often indicates
brush problems.
99
106 - 49. Nonporous seals do not allow any liquid or gas to penetrate the seal material where.
even a tiny leak would be harmful
100
106 - 50. Position the packing joints ________* apart when installing two rings
180*
101
417 - 1. the only purpose of filler rod is to
Supply filler metal to the joint
102
417 - 2. In the __________ process, a consumable rod is used and special materials in the electrode coating create a gaseous cloud that shields the ara area from atmospheric contamination
```
SMAW
Shielded
Metal
Arc
Welding
```
103
417 - 3. A __________ weld is triangular in cross section and is used in joints that have two surfaces approximately at right angles to each other
Fillet
104
417 - 4. Parts of the weld include the toe, root, and _________.
Throat
105
417 - 5. Joint __________ is joint alignment, spacing, and edge preparation
Fitup
106
417 - 6. Good housekeeping is when you
Do not allow hoses and cables to cross areas where people walk
107
417 - 7. Keep all ________ out of the welding area
Combustibles
108
417 - 8. Never position your head directly over rising fumes. You should
Hold your head off to the side
109
417 - 9. Sturdy ________ or __________ _________ not only protect u from burns but also insulate against electric shock
Leather or canvas gloves
110
417 - 10. When should you have a qualified technician check the regulator?
When the regulator connection still leaks after reasonable tightening
111
417 - 11. An oxyfuel welding outfit consists of a
Torch
112
417 - 12. As added protection against flying sparks you should wear
Boots or high cut shoes
113
417 - 13. One of the first steps in setting up an oxyfuel welding outfit is
Crack the cylinder valves momentarily to blow out and dirt or dust
114
417 - 14. A neutral flame has a small, brilliant __________ cone next to the tip, surrounded by a large _________ flame envelope
White
| Blue
115
417 - 15. Shutdown procedure : close the __________ control valve on the _________ first, then close the fuel gas control valve
Oxygen
| Torch
116
417 - 16. The procedure leading up to the actual joining operation include
Cleaning and designing the joint
117
417 - 17. Electrons move __________ _________ the electrode
Away from
118
417 - 18. Many welding machines are rated at
250 to 350A
119
417 - 19. The GTAW holds a
Nonconsumable tungsten electrode
120
417 - 20. The _________ ___________ is used for slag removal
Chipping hammer
121
417 - 21. _________ welding does not require external power
Oxyfuel
122
417 - 22. Flat welding is done from _________ the work. And horizontal welding is done ________ the work
Above
| Beside
123
417 - 23. Welds are easiest to make in the _________ position. ____________ welds are the most difficult
Flat
| Overhead
124
417 - 24. The SMAW preparations are similar to those for oxyfuel welding. First you should
Obtain the necessary safety and protective equipment
125
417 - 25. A _________ inch arc length is recommended for most GTAW welds. Tilt the torch about __________ degrees from vertical
1/8"
| 15*
126
417 - 26. Too high a current produces large and
Irregular weld beads
127
417 - 27. To eliminate arc blow completely you should
Change to AC power
128
417 - 28. Too rapid or excessive heating and cooling can cause
Brittle welds
129
417 - 29. Uneven expansion and contraction in the heat affected zone near a welded joint can cause metals to buckle, __________, or crack
Warp
130
417 - 30. what is a type of non destructive metal identifying test
Magnetic reaction test
131
417 - 31. What is a fillet weld symbol?
Right triangle
132
417 - 32. The number to the left of the weld symbol indicates the welds?
Height (1/2")
133
417 - 33. The symbol for a convex shape fillet weld looks like?
Right hand Quarter circle
| B
134
417 - 34. An "H" finish symbol stands for?
Hammering
135
417 - 35. If there is no need to specify anything special about a weld like a certain process or to refer to another document, the tail is?
Omitted or unspecified
136
418 - 1. The rate of heat input from the oxyfuel flame is controlled by the?
Speed at which the torch is moved
137
418 -2. In torch brazing, the filler metal is distributed by?
Capillary action
138
418 - 3. the term flux refers to a fusible material applied before welding to dissolve oxides and ________ _________ the surface and provide a?
Chemically clean
| Clean base metal
139
418 - 4. Postheating is used primarily for __________ _________ in the metal after it has been welded
Relieving stress
140
418 - 5. Melt the end of the filler rod by?
| Not by directing the flame at it
Dipping it in the weld puddle
141
418 - 6. Thermal conductivity of aluminum is 4 times greater than steel. This means applied ________ _________ _________ through the mass of parts to be welded, requiring more heat to be applied to the joint
Heat spreads rapidly
142
418 - 7. Mechanical cleaning includes grinding, wire brushing, __________, _________, and buffing
Filing, scraping
143
418 - 8. ___________ is very important when welding brass
Flux
144
418 - 9. When welding lead, the torch should be adjusted for a _________ or slightly carbonized flame
When welding nickel, the torch should be adjusted for a __________ flame.
When welding magnesium, the torch should be adjusted for a __________ flame.
Neutral
carburizing
carburizing
145
418 - 10. To make the best possible weld you should?
Know what type of metal you are welding
146
418 - 11. Both the welding torch and the cutting torch are?
Ignited with a spark lighter
147
418 - 12. The minimum protective items for torch cutting are gloves and?
Welding goggles with a suitable shade of darkened lenses
148
418 - 13. To pierce a hole in a steel plate u should position the inner cone tips of the preheating flames just above the surface of the plate until a small round spot ___________ and the metal begins to sweat
Heats to a bright red
149
418 - 14. Scarfing is a cutting operation in which surface defects are _________ from unfinished steel ingots and bars by burning away a thin layer of metal
Removed
150
418 - 15. By adding iron or low carbon steel into the cutting area greatly simplifies the cutting of some metal. This can be done by?
A bead of low carbon steel can be deposited along the cut line before the cut is made
151
418 - 16. In _________, filler metal is distributed between joint surfaces by capillary action
Brazing
152
418 - 17. AWS defines flux as a material used to facilitate?
Removal of oxides
153
418 - 18. When brazing aluminum, the ________ metal melts just before the _________ metal melts
Filler
| Base
154
418 - 19. Fluxes can be very?
Harmful to the skin
155
418 - 20. What is the difference between soft solder and a brazing or welding alloy?
Solvent actions at Lower temperatures
156
418 - 21. Hard face welding is when?
Thermal spraying is when?
One or more fusion weld beads are applied to severe wear surfaces on a part
Coatings are sprayed or blasted onto the surface of a part
157
418 - 22. When doing torch hard face procedures.. when the base metal starts sweating, move the rod into the center of the flame so that _________ ________ _________ and fall into the sweated zone
Thermal spraying is?
Drops of the filler rod are melted off
| When material is melted before it reaches the surface (D)
158
418 - 23. What is a common surfacing material?
Ceramics
159
418 - 24. When repairing a shaft u must _________ the damaged area to remove any ridges or burrs
Machine
160
418 - 25. Eye protection for electric arc spraying applications require lens shade numbers from?
9 to 12
161
419 - 1. Welding is started by touching the end of the electrode to the base metal, then lifting the electrode about __________. This action forms an arc, which immediately produces temperatures exceeding?
1/4"
| 10,000*F
162
419 - 2. The word shielded in shielded metal arc welding refers to the _________ __ _________ that forms around the arc area
Shield of gas
163
419 - 3. As the arc lengthens, the resistance _________, thus causing a _________ in the arc temperature
Increases
| Rise
164
419 - 4. Electrodes are classified by their?
Core material
165
419 - 5. A ________ _________ with at least a number 9 filter must always be worn while arc welding
Welding helmet
166
419 - 6. The type of covered electrode chosen for a given job depends on?
Composition of the base metal
167
419 - 7. The AWS uses the letter "E" for?
| The first two digits indicate _________ of the deposited metal
Arc welding electrodes
Tested minimum tensile strength
168
419 - 8. The current range for a particular electrode depends on its?
Diameter
169
419 - 9. What have very thick coverings that contain between 25-50% iron powder? The covering allow u to use high welding amperages without causing excessive penetration
Iron-powder electrodes
170
419 - 10. (A) What type of electrodes coverings need a certain amount of moisture to function properly?
Cellulose
171
419 - 11. (C) What GMAW metal transferring method deposits electrode metal in the weld when direct contact occurs between the electrode and the base metal?
Short circuit method
172
419 - 12. (A) What is the most common shielded gas used in GMAW?
Argon
173
419 - 13. (C) Argon gas is _________ than air.
Heavier
174
419 - 14. (A) The main consideration when selecting an electrode wire is to make sure that it has the same?
Composition as the base metal
175
419 - 15. (C) When preparing to GMAW, hold the gun nozzle about __________ above the work, and tilt it about __________ off vertical in the direction of welding
3/4"
| 20*
176
419 - 16. (A) An advantage of GTAW over other welding processes is that it will?
Weld more kinds of metal
177
419 - 17. Some GTAW torches are __________ and others are water-cooled
Air-cooled
178
419 - 18. (A) The only purpose of the tungsten electrode is to serve as an __________ __________ to carry current to the welding arc
Electrical conductor
179
419 - 19. (C) What is the proper filler metal for welds in low carbon steel?
Low carbon steel
180
419 - 20. (C) What type of current is preferred for aluminum because the arc action breaks up the surface oxide?
ACHF
181
419 - 21. (D) Resistance welding uses __________ and electric heat to join metals
Pressure
182
419 - 22. (B) In submerged arc welding, the __________ becomes electrically conductive, and welding current flows through the ____________ to produce the heat for welding
Flux
183
419 - 23. (C) In plasma arc welding, gas is heated to a very high temperature causing some of the gas to?
Ionize
| which means it becomes electrically conductive
184
419 - 24. (C) In conventional friction welding, the machine presses the two parts together and?
Rotates one part
185
419 - 25. (B) Ultrasonic welding can be used to make?
Leak-tight joints in thin material
186
419 - 26. (A) The high temperatures from welding cause __________ and the formation of internal stress in some metals
Distortion
187
419 - 28. (C) The heat affected zone is the area around a weld that does not melt but gets hot enough to change its?
Mechanical properties
188
419 - 29. The need to preheat ferrous metals depends primarily on their?
Carbon content
189
419 - 30. (B) Postheating is usually used to prevent hard and brittle spots from forming or to relieve stress if?
The weldment cools too fast from the preheat temperature
190
419 - 31 (c) Ferrous metals are _________ _________ metals
Iron based
191
419 - 32. (B) an important step in preparing the edge of ferrous metals to be welded is?
Cutting or gouging the edge
192
419 - 33. (D) The common process used for welding cast iron is?
SMAW
| Shielded Metal Arc Welding
193
419 - 34. Which electrodes are available in a variety of sizes, and are stable at low currents for welding in all positions?
(C) Nickel Based Electrodes
194
419 - 35. What welding procedure should be used for all alloy steels?
What type of current and electrodes if possible?
(A) Low hydrogen
DCEP
Low hydrogen electrodes
195
419 - 36. Aluminum combines readily with oxygen to form an________ _________ on its surface
(C) Oxide coating
196
419 - 37. The best way to identify a nonferrous metal is to?
(A) contact the part manufacturer
197
419 - 38. The most widely used arc cutting process is?
(A) air carbon arc
198
419 - 39. Chemical cleaning of aluminum is better than mechanical brushing because reoxidation
Is?
(D) less rapid
199
419 - 40. What is the most common process used to weld nickel?
What type of power supply should be used?
(A) GTAW
| DCEN
200
419 - 41. Welded joints are better because they are?
Stronger
201
419 - 42. _________ applies to systems requiring the highest degree of weld quality. An example is?
AR-1
| High pressure
202
419 - 43. What process is most widely used to weld pipe?
SMAW
| Shielded metal arc welding
203
419 - 44. The use of _______ ________ ensures full joint penetration and prevents _________
Backup rings
| Icicles
204
419 - 45. The need for preheating and postheating pipe depends on?
Base metal composition and thickness
205
419 - 46. What is the grinding or scratching action of hard particles?
Abrasion
206
419 - 47. Many high alloy deposits should cross check when they cool because cross checking _________ __________ _________ in the deposit
Relieves residual stress
207
419 - 48. What materials are the hardest and most wear resistant hard facing alloys?
Tungsten carbide
208
419 - 49. What kind of hard facing is the best process to use for thin edged tools?
Oxyacetylene
209
419 - 50. Automatic hard facing machines are usually __________ machines.
SAW
210
317 - 1. On a milling machine, the _________ moves from side to side (longitudinal motion)
Table (D)
211
317 - 2. Use a _________ or stop to keep the workpiece from shifting under the cutting forces
Kicker (C)
212
317 - 3. The ________ _________ arbor is used for mounting shell end mills
Style C (C)
213
317 - 4. The cutting speed recommendations for milling cutters are in?
SFPM
Surface Feet Per Minute
(C)
214
317 - 5. In angular indexing, you use degrees instead of the number of indexes. When set up at a 5:1 ratio, each turn of the crank turns the work piece?
72* (D)
215
317 - 6. You can get by using high speed cutting tools if you?
Decrease the cutting speed and feed rate (A)
216
317 - 7. Cutting speed is expressed in?
SFPM
Surface Feet per minute
(A)
217
317 - 8. What is the best instrument to check the alignment of the vise and shaper ram?
Dial indicator (C)
218
317 - 9. The most important dimension of a keyway is the?
Width (D)
219
317 - 10. Factories use __________ when they want a surface that will be hand finished
Planers (C)
220
317 - 11. As the grinding wheel ___________ further, the grains tear away from their setting and expose new grains
Wears (D)
221
317 - 12. The planer and rotary grinding machines are two types of?
Surface grinders (D)
222
317 - 13. When mounted on an arbor, a grinding wheel should only contact the?
Blotters (C)
223
317 - 14. _________ a grinding wheel is removing the glazed or loaded surface to expose new, sharp abrasive grains
Dressing (D)
224
317 - 15. After you turn off the coolant pump, let the grinding wheel run awhile to?
Throw off any coolant left on it (D)
225
317 - 16. The most common type of gear?
Spur gear (D)
226
317 - 17. What fears are most used in plant machinery?
Spur gear
| Straight bevel gears
227
317 - 18. Diametral pitch is the ratio of the number of teeth to the number of ?
Inches in the pitch diameter (C)
228
317 - 19. When you have finished cutting your first full tooth, check it with a gear tooth?
Vernier caliper (D)
229
317 - 20. The pitch line is a _________ line
Straight (A)
230
317 - 21. Band saw blades topped with _________ _________ are usually used to cut thick work
Tungsten Carbide (D)
231
317 - 22. Tungsten carbide blades are normally _________ in pitch
Coarse (B)
232
317 - 23. Blades for grinding, polishing, and filing are different because their cutting surfaces are __________ instead of tooth like
Flat (C)
233
317 - 24. __________ __________ serve two basic functions in power sawing. They cool the blade and the work, and they lubricare the teeth and the sides of the blade
Cutting fluids (A)
234
317 - 25. What saw is best for cutting a wide variety of shapes or contours in almost any material.
Vertical type band saw (D)
235
315 - 1. Iron parts are usually made from?
Castings (B)
236
315 - 2. The last two digits of the SAE code show the ________ _________ of the steel in hundredths of one __________
Carbon content
Percent
(B)
237
315 - 3. What is the ability to resist cutting, scratching, and penetration?
Hardness (C)
238
315 - 4. To prevent steel from breaking when exposed to a sudden temperature drop, apply another heating and cooling process called?
Tempering (D)
239
315 - 5. Use a __________ to remove the discontinuous or flaky chips produced by cast iron
Brush (A)
240
315 - 6. _________ are used to lay out and measure distances
Dividers (A)
241
315 - 7. Coat cast iron plates with ________ to prevent rusting
Oil (B)
242
315 - 8. Use __________ __________ to raise the surface gauge to the proper height
Box Parallels (A)
243
315 - 9. The straight line distance between the centers of any two adjacent holes is the?
Chord or pitch chord (A)
244
315 - 10. Carry tools in a tote box or in a?
Pouch fastened to your belt (D)
245
315 - 11. The centers in the __________ is called the "dead" center because it is not driven
Tailstock (D)
246
315 - 12. Use a __________ _________ to remove a live center from the spindle
Knockout bar (B)
247
315 - 13. Hold workpieces to be bored in a?
Chuck (A)
248
315 - 14. If the spindle nose has threads, engage the back gear and place a ________ ________ ________ between the bed and one of the chuck jaws
Block of wood (A)
249
315 - 15
Unknown
250
315 - 16. A view that looks as though a portion of the part was cut away is called a?
Section (C)
251
315 - 17. What two dimensions are required for a cylinder?
Diameter and length (A)
252
315 - 18. _________ is the degree of accuracy needed for a part to function properly
Precision (C)
253
315 - 19. Each revolution of the thimble moves the spindle 1/40 of an inch or?
0.025in (C)
254
315 - 20. Toolmakers use _________ _______ to check gauges and to lay out and set up work requiring extreme accuracy
Gauge blocks (C)
255
315 - 21. High speed steel gives off a ________ _________ spark
Dark red (B)
256
315 - 22. The ________ of the shank is the surface that supports the cutting tip
Base (A)
257
315 - 23. Use only the ________ of a grinding wheel
Face (B)
258
315 - 24. The first symbol in the grinding wheel marking code is the
Abrasive type (C)
259
315 - 25. Because the grinding wheel does not produce a perfectly smooth edge, you should _________ the cutting edge after grinding
Hone (C)
260
315 - 26. The metal column that supports the flutes is called the?
Web (D)
261
315 - 27. Most general purpose twist drills have an included angle at the point of?
118* (D)
262
315 - 28. A __________ relief should be formed with a flaring cup grinding wheel
Flat (C)
263
315 - 29. Machine countersinks have an included angle of?
60* to 82*
264
315 - 30. Use a _________ __________ to remove burrs or nicks in machine spindles
Tapered reamer (C)
265
316 - 1. For turning operations, the carriage is connected to the?
Feed rod (B)
266
316 - 2. The largest diameter of workpiece a lathe can rotate is called the?
Swing (D)
267
316 - 3. When turning, facing, drilling, boring, teaming, and threading us a _________ to hold the workpiece
Chuck (C)
268
316 - 4. The inside surface of a _________ is shaped to fit a particular type of stock
Collet (A)
269
316 - 5. Use a steady rest to support the outer end of a?
Very long workpiece (B)
270
316 - 6
Dunno
271
316 - 7. The _________ _________ is similar to the steady rest, except it is attached to the lathe saddle so that it follows the cutting tool
Follower rest (C)
272
316 - 8. The suggested speed for finishing mild steel is?
125 sfpm (C)
273
316 - 9. The smoothness of the finish depends a great deal on how ________ your but is and how fast your ________ ________ is.
Sharp
Feed rate
(D)
274
316 - 10.
Dunno
275
316 - 11. The principle parts of a twist drill are the body, shank, and the ________
Point (C)
276
316 - 12. The recommended drilling speed for wood is?
300-400 sfpm (D)
277
316 - 13. To change from feet per minute to inches per minute you must?
Multiply by 12 (C)
278
316 - 14. __________ is the process of making a drilled, cast, forged, or punches hole larger
Boring (A)
279
316 - 15. In a vertical turret lathe, an _______ ________ advances the boring tool onto the work
Overhead ram (C)
280
316 - 16. The metal between the flutes of a reamer is called the?
Land (B)
281
316 - 17. When a very accurate hole is required, what is recommended?
Hand reaming (C)
282
316 - 18. What has a tapered hole through the shell that allows you to mount the shell on a tapered arbor
Shell reamer (C)
283
316 -19. If you notice a burr on the cutting edge or land of a tooth, smooth it off with an
Oilstone (D)
284
316 - 20. A countersink is used so _______ ________ for flush with the surface
Screw heads (D)
285
316 - 21. The most common form of precision threads for moderate power transmission needs is the?
Acme thread (A)
286
316 - 22. Use the fluteless tap only for _______ materials like aluminum, brass, and copper
Ductile (B)
287
316 - 23. When tightening the pipe and fitting with a wrench, the _______ ________ fills the tiny tunnel, making a dry seal
Flattened metal (A)
288
316 - 24. For most work the ________ ________ or _________ _________ is ideal for tapping
Spiral point
Gun tap
(D)
289
316 - 25. When tapping, occasionally turn the tap _________ ________ ________ _________ to break long chips.
Backward half a turn (C)
