5th Six Month Final Flashcards
105-1. A metals ability to change shape without breaking is called malleability or
ductility
105-2. The ability of a metal to return to its original shape after being deformed is called
elasticity
105-3. A solid and a liquid can exist together at the? Adding heat melts more of the solid, but does not change the?
melting point
Temperature
105-4. Alloys that contain iron as the base metal are known as?
steel
105-5. The speed and ease with which a metal can be cut on a machine tool is called its?
machinability
105-6. The maximum amount of stress a material can exert is called its
yield strength
105-7. Ts=F/A=
9,000lbs / 0.2 sq. in.=
45,000 psi
105-8. At high temperatures, an extremely slow, continuous distortion of certain metals produces another type of failure called?
creep
105 - 9. What is the mass of a material per unit of volume?
Density
105 - 10. What is the ratio between the density of a given material and the density of water called?
Specific gravity
105 - 11. Permanent mold casting use?
both metal cores and sand cores
105 - 12. What kind of force makes the metal flow away from the center and against the sides of the mold?
Centrifugal
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.
rapid
nonferrous
105 - 14. The most common method of ________ is called upsetting.
cold forging
105 - 15. What is usually made from rod stock. The rod stock may be pulled through a tapered die.
Wire
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.
steel
105 - 17. A high carbon content makes the molten iron easy to
Break
105 - 18. Malleabilized iron is ________ and less brittle than white cast iron but it has ________ resistance to wear than gray iron.
softer
better
105 - 19. _________ __________ cast iron is used in making parts that must be hard and tough but not brittle.
High-alloy
105 - 20. What kind of furnaces include the open hearth, the basic oxygen, and the electric furnace.
Steelmaking
105 - 21. Of all the elements that may be included in steel, _________ is the most important.
carbon
105 - 22. Both the AISI and the SAE coding systems identifies each code number by the ________ ________ of one kind of ________.
chemical composition
steel
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.
color bursts
105 - 24. __________ quality sheet metals have a matte finish that holds paint well
Commercial
105 - 25. All Stainless steel’s contain?
chromium
105 - 26. Uneven heating and cooling causes _________, warp, and even crack in the area around the weld
Distortion
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.
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
105 - 29. Low-carbon steels are more often .
forged
105 - 30. Steels containing ________ to _________ __________ are used as cutting tools and hand tools
0.55 to 1.00% carbon
105 - 31. _________ _________ makes the alloys even harder and stronger.
Cold working
105 - 32. A copper alloy containing a little lead is much ?
easier to machine
105 - 33. _________ __________ contains 36% to 50% zinc
Beta brass
105 - 34. Muntz metal is the __________ of the brasses
strongest
105 - 35. The copper alloy most widely used for casting is called
ounce metal
105 - 36. Aluminum _________ coating forms rapidly on its surface when metal is exposed to air.
oxide
105 - 37. Four digit number in system to describe aluminums. The _________ digit indicates the main alloying element
first
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
105 - 39. Aluminum’s strength decreases greatly as the __________ of metal rises.
temperature
105 - 40. Intermediate temperature solders melt at temperatures of _________ to _________.
500*
To
700*
105 - 41. Magnesium is extracted from brines and ores by two methods _________ and _________
electrolysis
reduction
105 - 42. __________ has a lower temperature strength than EK, EZ, and ZE alloys
AZ
105 - 43. The letter “a” following the alloy designation indicates an _________ sheet.
annealed
105 - 44. Magnesium gas welding should be used only for _________ repairs
emergency
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
105 - 46. Various proportions of the lead and tin are alloyed to make?
solder
105 - 47. Lead wool can be used instead of molten lead to form a metallic cold _______.
seal
105 - 48. __________ is used in toasters.
Nichrome
105 - 49. __________ is widely used as a corrosion resistant coating for steel sheet the process is called galvanizing.
Zinc
105 - 50. The proper lubricants to use when machining zinc include?
lard oil
106 - 1. A liquid has a __________ volume but it’s shape can _________.
fixed
change
106 - 2. In the metric system, _________ is measured in kilograms per cubic meter (kg/m^3).
density
106 - 3. _________ is a cooling process
Evaporation
106 - 4. A __________ liquid is one that has a low boiling point
volatile
106 - 5. The solubility is usually _________ at the boiling point of a liquid.
zero
106 - 6. All plastics can be __________ as either thermoplastics or thermosets
classified
106 - 7. When choosing a plastic material, the __________ of the material is important
performance
106 - 8. Reinforcing- apply the _________ to the inside surface of a filament wound tank
patch
106 - 9. When drilling plastic, reduce the feed rate just before the drill point
penetrates the other side of the material.
106 - 10. Patching- clean __________ __________ of the material with solvent to remove oils and dirt.
both sides
106 - 11. With Elastomers, __________ of the original shape is recovered almost immediately
most
106 - 12. Chemicals called __________ reduce deterioration caused by oxidation
antioxidants
106 - 13. Properties of rubber- class T resists damage by extreme
high and low temperatures
106 - 14. The _________ sulfur used the __________ the vulcanized product.
less
softer
106 - 15. Flexibility is important in the coatings for certain __________ and __________.
wires and cables
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
106 - 17. Measurements of _________ __________ refer to the actual length of a board.
running feet
106 - 18. Best veneer quality of plywood is?
N - natural finish veneer
106 - 19. Each Knot ________ the wood.
weakens
106 - 20. In _________, the pilot hole should be only half as deep as the length of the screw.
softwoods
106 - 21. Air entrained concrete is for building structures?
exposed to severe cold.
106 - 22. Cinder block is used?.
above ground
106 - 23. Type N is a __________
___________ mortar.
medium strength
106 - 24. Special plasters include those with vermiculite or perlite aggregates provide _________
__________ and __________.
fire protection
insulation
106 - 25. To determine correct glass size for a window pane, measure the sash and deduct ?
1/16 to 1/8 inch.
106 - 26. ___________ Insulation and some synthetic products will burn.
Vegetable
106 - 27. Installing blanket insulation- use _________ __________ or a ___________ _________ to cut the insulation. Use proper cutting tools
large shears or a sharp knife
106 - 28. Reducing machine vibration. The remaining vibration can be reduced by __________ ___________ or ducts with lead sheet.
wrapping pipes
106 - 29. An asphalt coating serves as an insulation adhesive ________ _________
above ground.
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
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
106 - 32. Surface preparation is the single most important factor for success in applying a _________ __________
protective coating.
106 - 33. White blasting creates the __________ __________ _________.
best anchor pattern
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
106 - 35. Color codes for piping- _________ is for fire protection, water, foam, and carbon dioxide.
red
106 - 36. PH scale- numbers __________ seven indicate acidity.
below
106 - 37. _________ ___________ __________is the safest industrial cleaning solvent
Dry cleaning solvent
106 - 38. Synthetic lubricants offer more heat and fire resistance and are better for
high temperature uses
106 - 39. Cyanide is the most dangerous chemical in .
electroplating
106 - 40 To __________ __________ ________, you should always use grounding devices on hoses, nozzles, tanks, and metal containers use only approved grounding devices
avoid fuel fires
106 - 41. Curing is the
completion of all chemical and physical reactions that affect bonding.
106 - 42. Water soluble gums and starches from plants are made into natural vegetable glues called .
mucilage
106 - 43. __________ __________ __________ is a high strength Adhesive joints and has the greatest surface area
bevel lap joint
106 - 44. rubber tapes are good for
Electrical repairs
106 - 45. High temperature tapes are coated with fluorocarbon Or silicone adhesives and are used where service conditions include
High temperatures
106 - 46. __________ is chemically inert at room temperature
Carbon
106 - 47. __________ ___________ carry electric current to and from the rotating armature of the motor
Carbon Brushes
106 - 48. Noisy operating electrical equipment often indicates
brush problems.
106 - 49. Nonporous seals do not allow any liquid or gas to penetrate the seal material where.
even a tiny leak would be harmful
106 - 50. Position the packing joints ________* apart when installing two rings
180*
417 - 1. the only purpose of filler rod is to
Supply filler metal to the joint
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
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
417 - 4. Parts of the weld include the toe, root, and _________.
Throat
417 - 5. Joint __________ is joint alignment, spacing, and edge preparation
Fitup
417 - 6. Good housekeeping is when you
Do not allow hoses and cables to cross areas where people walk
417 - 7. Keep all ________ out of the welding area
Combustibles
417 - 8. Never position your head directly over rising fumes. You should
Hold your head off to the side
417 - 9. Sturdy ________ or __________ _________ not only protect u from burns but also insulate against electric shock
Leather or canvas gloves
417 - 10. When should you have a qualified technician check the regulator?
When the regulator connection still leaks after reasonable tightening
417 - 11. An oxyfuel welding outfit consists of a
Torch
417 - 12. As added protection against flying sparks you should wear
Boots or high cut shoes
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
417 - 14. A neutral flame has a small, brilliant __________ cone next to the tip, surrounded by a large _________ flame envelope
White
Blue
417 - 15. Shutdown procedure : close the __________ control valve on the _________ first, then close the fuel gas control valve
Oxygen
Torch
417 - 16. The procedure leading up to the actual joining operation include
Cleaning and designing the joint
417 - 17. Electrons move __________ _________ the electrode
Away from
417 - 18. Many welding machines are rated at
250 to 350A
417 - 19. The GTAW holds a
Nonconsumable tungsten electrode
417 - 20. The _________ ___________ is used for slag removal
Chipping hammer
417 - 21. _________ welding does not require external power
Oxyfuel
417 - 22. Flat welding is done from _________ the work. And horizontal welding is done ________ the work
Above
Beside
417 - 23. Welds are easiest to make in the _________ position. ____________ welds are the most difficult
Flat
Overhead
417 - 24. The SMAW preparations are similar to those for oxyfuel welding. First you should
Obtain the necessary safety and protective equipment
417 - 25. A _________ inch arc length is recommended for most GTAW welds. Tilt the torch about __________ degrees from vertical
1/8”
15*
417 - 26. Too high a current produces large and
Irregular weld beads
417 - 27. To eliminate arc blow completely you should
Change to AC power
417 - 28. Too rapid or excessive heating and cooling can cause
Brittle welds
417 - 29. Uneven expansion and contraction in the heat affected zone near a welded joint can cause metals to buckle, __________, or crack
Warp
417 - 30. what is a type of non destructive metal identifying test
Magnetic reaction test
417 - 31. What is a fillet weld symbol?
Right triangle
417 - 32. The number to the left of the weld symbol indicates the welds?
Height (1/2”)
417 - 33. The symbol for a convex shape fillet weld looks like?
Right hand Quarter circle
B
417 - 34. An “H” finish symbol stands for?
Hammering
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
418 - 1. The rate of heat input from the oxyfuel flame is controlled by the?
Speed at which the torch is moved
418 -2. In torch brazing, the filler metal is distributed by?
Capillary action
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
418 - 4. Postheating is used primarily for __________ _________ in the metal after it has been welded
Relieving stress
418 - 5. Melt the end of the filler rod by?
Not by directing the flame at it
Dipping it in the weld puddle
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
418 - 7. Mechanical cleaning includes grinding, wire brushing, __________, _________, and buffing
Filing, scraping
418 - 8. ___________ is very important when welding brass
Flux
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
418 - 10. To make the best possible weld you should?
Know what type of metal you are welding
418 - 11. Both the welding torch and the cutting torch are?
Ignited with a spark lighter
418 - 12. The minimum protective items for torch cutting are gloves and?
Welding goggles with a suitable shade of darkened lenses
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
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
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
418 - 16. In _________, filler metal is distributed between joint surfaces by capillary action
Brazing
418 - 17. AWS defines flux as a material used to facilitate?
Removal of oxides
418 - 18. When brazing aluminum, the ________ metal melts just before the _________ metal melts
Filler
Base
418 - 19. Fluxes can be very?
Harmful to the skin
418 - 20. What is the difference between soft solder and a brazing or welding alloy?
Solvent actions at Lower temperatures
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
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)
418 - 23. What is a common surfacing material?
Ceramics
418 - 24. When repairing a shaft u must _________ the damaged area to remove any ridges or burrs
Machine
418 - 25. Eye protection for electric arc spraying applications require lens shade numbers from?
9 to 12
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
419 - 2. The word shielded in shielded metal arc welding refers to the _________ __ _________ that forms around the arc area
Shield of gas
419 - 3. As the arc lengthens, the resistance _________, thus causing a _________ in the arc temperature
Increases
Rise
419 - 4. Electrodes are classified by their?
Core material
419 - 5. A ________ _________ with at least a number 9 filter must always be worn while arc welding
Welding helmet
419 - 6. The type of covered electrode chosen for a given job depends on?
Composition of the base metal
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
419 - 8. The current range for a particular electrode depends on its?
Diameter
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
419 - 10. (A) What type of electrodes coverings need a certain amount of moisture to function properly?
Cellulose
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
419 - 12. (A) What is the most common shielded gas used in GMAW?
Argon
419 - 13. (C) Argon gas is _________ than air.
Heavier
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
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*
419 - 16. (A) An advantage of GTAW over other welding processes is that it will?
Weld more kinds of metal
419 - 17. Some GTAW torches are __________ and others are water-cooled
Air-cooled
419 - 18. (A) The only purpose of the tungsten electrode is to serve as an __________ __________ to carry current to the welding arc
Electrical conductor
419 - 19. (C) What is the proper filler metal for welds in low carbon steel?
Low carbon steel
419 - 20. (C) What type of current is preferred for aluminum because the arc action breaks up the surface oxide?
ACHF
419 - 21. (D) Resistance welding uses __________ and electric heat to join metals
Pressure
419 - 22. (B) In submerged arc welding, the __________ becomes electrically conductive, and welding current flows through the ____________ to produce the heat for welding
Flux
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
419 - 24. (C) In conventional friction welding, the machine presses the two parts together and?
Rotates one part
419 - 25. (B) Ultrasonic welding can be used to make?
Leak-tight joints in thin material
419 - 26. (A) The high temperatures from welding cause __________ and the formation of internal stress in some metals
Distortion
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
419 - 29. The need to preheat ferrous metals depends primarily on their?
Carbon content
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
419 - 31 (c) Ferrous metals are _________ _________ metals
Iron based
419 - 32. (B) an important step in preparing the edge of ferrous metals to be welded is?
Cutting or gouging the edge
419 - 33. (D) The common process used for welding cast iron is?
SMAW
Shielded Metal Arc Welding
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
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
419 - 36. Aluminum combines readily with oxygen to form an________ _________ on its surface
(C) Oxide coating
419 - 37. The best way to identify a nonferrous metal is to?
(A) contact the part manufacturer
419 - 38. The most widely used arc cutting process is?
(A) air carbon arc
419 - 39. Chemical cleaning of aluminum is better than mechanical brushing because reoxidation
Is?
(D) less rapid
419 - 40. What is the most common process used to weld nickel?
What type of power supply should be used?
(A) GTAW
DCEN
419 - 41. Welded joints are better because they are?
Stronger
419 - 42. _________ applies to systems requiring the highest degree of weld quality. An example is?
AR-1
High pressure
419 - 43. What process is most widely used to weld pipe?
SMAW
Shielded metal arc welding
419 - 44. The use of _______ ________ ensures full joint penetration and prevents _________
Backup rings
Icicles
419 - 45. The need for preheating and postheating pipe depends on?
Base metal composition and thickness
419 - 46. What is the grinding or scratching action of hard particles?
Abrasion
419 - 47. Many high alloy deposits should cross check when they cool because cross checking _________ __________ _________ in the deposit
Relieves residual stress
419 - 48. What materials are the hardest and most wear resistant hard facing alloys?
Tungsten carbide
419 - 49. What kind of hard facing is the best process to use for thin edged tools?
Oxyacetylene
419 - 50. Automatic hard facing machines are usually __________ machines.
SAW
317 - 1. On a milling machine, the _________ moves from side to side (longitudinal motion)
Table (D)
317 - 2. Use a _________ or stop to keep the workpiece from shifting under the cutting forces
Kicker (C)
317 - 3. The ________ _________ arbor is used for mounting shell end mills
Style C (C)
317 - 4. The cutting speed recommendations for milling cutters are in?
SFPM
Surface Feet Per Minute
(C)
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)
317 - 6. You can get by using high speed cutting tools if you?
Decrease the cutting speed and feed rate (A)
317 - 7. Cutting speed is expressed in?
SFPM
Surface Feet per minute
(A)
317 - 8. What is the best instrument to check the alignment of the vise and shaper ram?
Dial indicator (C)
317 - 9. The most important dimension of a keyway is the?
Width (D)
317 - 10. Factories use __________ when they want a surface that will be hand finished
Planers (C)
317 - 11. As the grinding wheel ___________ further, the grains tear away from their setting and expose new grains
Wears (D)
317 - 12. The planer and rotary grinding machines are two types of?
Surface grinders (D)
317 - 13. When mounted on an arbor, a grinding wheel should only contact the?
Blotters (C)
317 - 14. _________ a grinding wheel is removing the glazed or loaded surface to expose new, sharp abrasive grains
Dressing (D)
317 - 15. After you turn off the coolant pump, let the grinding wheel run awhile to?
Throw off any coolant left on it (D)
317 - 16. The most common type of gear?
Spur gear (D)
317 - 17. What fears are most used in plant machinery?
Spur gear
Straight bevel gears
317 - 18. Diametral pitch is the ratio of the number of teeth to the number of ?
Inches in the pitch diameter (C)
317 - 19. When you have finished cutting your first full tooth, check it with a gear tooth?
Vernier caliper (D)
317 - 20. The pitch line is a _________ line
Straight (A)
317 - 21. Band saw blades topped with _________ _________ are usually used to cut thick work
Tungsten Carbide (D)
317 - 22. Tungsten carbide blades are normally _________ in pitch
Coarse (B)
317 - 23. Blades for grinding, polishing, and filing are different because their cutting surfaces are __________ instead of tooth like
Flat (C)
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)
317 - 25. What saw is best for cutting a wide variety of shapes or contours in almost any material.
Vertical type band saw (D)
315 - 1. Iron parts are usually made from?
Castings (B)
315 - 2. The last two digits of the SAE code show the ________ _________ of the steel in hundredths of one __________
Carbon content
Percent
(B)
315 - 3. What is the ability to resist cutting, scratching, and penetration?
Hardness (C)
315 - 4. To prevent steel from breaking when exposed to a sudden temperature drop, apply another heating and cooling process called?
Tempering (D)
315 - 5. Use a __________ to remove the discontinuous or flaky chips produced by cast iron
Brush (A)
315 - 6. _________ are used to lay out and measure distances
Dividers (A)
315 - 7. Coat cast iron plates with ________ to prevent rusting
Oil (B)
315 - 8. Use __________ __________ to raise the surface gauge to the proper height
Box Parallels (A)
315 - 9. The straight line distance between the centers of any two adjacent holes is the?
Chord or pitch chord (A)
315 - 10. Carry tools in a tote box or in a?
Pouch fastened to your belt (D)
315 - 11. The centers in the __________ is called the “dead” center because it is not driven
Tailstock (D)
315 - 12. Use a __________ _________ to remove a live center from the spindle
Knockout bar (B)
315 - 13. Hold workpieces to be bored in a?
Chuck (A)
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)
315 - 15
Unknown
315 - 16. A view that looks as though a portion of the part was cut away is called a?
Section (C)
315 - 17. What two dimensions are required for a cylinder?
Diameter and length (A)
315 - 18. _________ is the degree of accuracy needed for a part to function properly
Precision (C)
315 - 19. Each revolution of the thimble moves the spindle 1/40 of an inch or?
0.025in (C)
315 - 20. Toolmakers use _________ _______ to check gauges and to lay out and set up work requiring extreme accuracy
Gauge blocks (C)
315 - 21. High speed steel gives off a ________ _________ spark
Dark red (B)
315 - 22. The ________ of the shank is the surface that supports the cutting tip
Base (A)
315 - 23. Use only the ________ of a grinding wheel
Face (B)
315 - 24. The first symbol in the grinding wheel marking code is the
Abrasive type (C)
315 - 25. Because the grinding wheel does not produce a perfectly smooth edge, you should _________ the cutting edge after grinding
Hone (C)
315 - 26. The metal column that supports the flutes is called the?
Web (D)
315 - 27. Most general purpose twist drills have an included angle at the point of?
118* (D)
315 - 28. A __________ relief should be formed with a flaring cup grinding wheel
Flat (C)
315 - 29. Machine countersinks have an included angle of?
60* to 82*
315 - 30. Use a _________ __________ to remove burrs or nicks in machine spindles
Tapered reamer (C)
316 - 1. For turning operations, the carriage is connected to the?
Feed rod (B)
316 - 2. The largest diameter of workpiece a lathe can rotate is called the?
Swing (D)
316 - 3. When turning, facing, drilling, boring, teaming, and threading us a _________ to hold the workpiece
Chuck (C)
316 - 4. The inside surface of a _________ is shaped to fit a particular type of stock
Collet (A)
316 - 5. Use a steady rest to support the outer end of a?
Very long workpiece (B)
316 - 6
Dunno
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)
316 - 8. The suggested speed for finishing mild steel is?
125 sfpm (C)
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)
316 - 10.
Dunno
316 - 11. The principle parts of a twist drill are the body, shank, and the ________
Point (C)
316 - 12. The recommended drilling speed for wood is?
300-400 sfpm (D)
316 - 13. To change from feet per minute to inches per minute you must?
Multiply by 12 (C)
316 - 14. __________ is the process of making a drilled, cast, forged, or punches hole larger
Boring (A)
316 - 15. In a vertical turret lathe, an _______ ________ advances the boring tool onto the work
Overhead ram (C)
316 - 16. The metal between the flutes of a reamer is called the?
Land (B)
316 - 17. When a very accurate hole is required, what is recommended?
Hand reaming (C)
316 - 18. What has a tapered hole through the shell that allows you to mount the shell on a tapered arbor
Shell reamer (C)
316 -19. If you notice a burr on the cutting edge or land of a tooth, smooth it off with an
Oilstone (D)
316 - 20. A countersink is used so _______ ________ for flush with the surface
Screw heads (D)
316 - 21. The most common form of precision threads for moderate power transmission needs is the?
Acme thread (A)
316 - 22. Use the fluteless tap only for _______ materials like aluminum, brass, and copper
Ductile (B)
316 - 23. When tightening the pipe and fitting with a wrench, the _______ ________ fills the tiny tunnel, making a dry seal
Flattened metal (A)
316 - 24. For most work the ________ ________ or _________ _________ is ideal for tapping
Spiral point
Gun tap
(D)
316 - 25. When tapping, occasionally turn the tap _________ ________ ________ _________ to break long chips.
Backward half a turn (C)
