Metallurgy

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Author:
joshuacassel
ID:
270571
Filename:
Metallurgy
Updated:
2016-03-19 01:38:35
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machining machinist metallurgy CofQ Conestoga
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Description:
A general test of Metallurgy knowledge for preparing for a test. A good study aid for apprentices in machining.
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  1. Physical Properties of Metal:

    _______ is the property of a metal that permits no premanent distortion before breaking.
    Ex. Cast Iron will break before rather than bend under shock or impact.

    A) Brittleness
    B) Cementite
    C) Hardness
    D) Toughness
    A) Brittleness
    (this multiple choice question has been scrambled)
  2. Physical Properties of Metal:

    _____ is the ability of the metal to be permanently deformed without breaking.

    A) Ductility
    B) Malleability
    C) Nickel
    D) Gamma Iron
    A) Ductility
    (this multiple choice question has been scrambled)
  3. Physical Properties of Metal:

    ________ is the ability of the metal to return to its original shape after any force acting on it has been removed.

    A) Malleability
    B) Cementite
    C) Elasticity
    D) Tensile Strength
    C) Elasticity
    (this multiple choice question has been scrambled)
  4. Physical Properties of Metal:

    ________ may be defined as the resistance to forcible penetration or plastic deformation.

    A) Hardness
    B) Hematite
    C) Austenite
    D) Toughness
    A) Hardness
    (this multiple choice question has been scrambled)
  5. Physical Properties of Metal:

    ____________ is the property of a metal that permits it to be hammered or rolled into other sizes and shapes.

    A) Ductility
    B) Brittleness
    C) Malleability
    D) Malleable Castings
    C) Malleability
    (this multiple choice question has been scrambled)
  6. Physical Properties of Metal:

    _______ is the maximum amount of pull that a material will withstand before breaking.

    A) Elasticity
    B) Grey-Iron Castings
    C) Critical Range
    D) Tensile Strength
    D) Tensile Strength
    (this multiple choice question has been scrambled)
  7. Physical Properties of Metal:

    _________ is the property of a metal to withstand shock or impact. This is the opposite condition of brittleness.

    A) Annealing
    B) Ductility
    C) Spheroidizing
    D) Toughness
    D) Toughness
    (this multiple choice question has been scrambled)
  8. Iron Ore:

    ________ contains about 70% iron and varies in colour from black to brick red.

    A) Nickel
    B) Duralumin
    C) Austenite
    D) Hematite
    D) Hematite
    (this multiple choice question has been scrambled)
  9. Iron Ore:

    ________, a brownish ore that contains water, which has to be removed by roasting.

    A) Martensite
    B) Cementite
    C) Toughness
    D) Limonite
    • D) Limonite
    • Limestone river bridges
  10. Iron Ore:

    _________, a rich, black ore, contains a higher percentage of iron than any other ore but is not found in large quantities.

    A) Austenite
    B) Critical Range
    C) Magnetite
    D) Hematite
    C) Magnetite
    (this multiple choice question has been scrambled)
  11. Iron Ore:

    ________, a low-grade ore containing about 25% to 30% iron, must be specially treated before reduction into iron.

    A) Taconite
    B) Recalescence Point
    C) Limonite
    D) Gamma Iron
    • A) Taconite
    • Cheap tacos, takes a lot to feel full.
  12. What are the 3 primary ingredients in pig iron?
    • Iron ore
    •    main ingredient
    • Coke
    •    removes oxygen
    • Limestone
    •    forms slag with impurities
  13. What purpose does Coke have in the production of Pig Iron?
    Coke burns to produce carbon monoxide, which combines with the oxygen in the iron ore to reduce it to a spongy mass of iron.
  14. What purpose does Limestone have in the production of Pig Iron?
    Limestone acts a flux and unites with the impurities (silica and sulfur) in the iron ore to form a slag.
  15. What type of furnace is used to manufacture pig iron?
    Blast Furnace
  16. What type of furnace is used to manufacture Cast Iron?
    Cupola Furnace
  17. Types of Cast Iron:

    _____ castings: made from a mixture of pig iron and steel scrap, are the most widely used. They are made into a wide variety of products, biles, locomotives, and machinery.

    A) Tensile Strength
    B) Alloyed castings
    C) Grey-Iron Castings
    D) Izod
    C) Grey-Iron Castings
    (this multiple choice question has been scrambled)
  18. Types of Cast Iron:

    _____ castings are made by pouring molten metal into metal molds so that the surface cools rapidly. The surface of such castings becomes very hard, and the castings are used for crusher rolls or other products requiring a hard, wear-resistant surface.

    A) Grey-Iron Castings
    B) Austenite
    C) Chilled-iron castings
    D) Air-hardening
    C) Chilled-iron castings
    (this multiple choice question has been scrambled)
  19. Types of Cast Iron:
    _______ castings contains amounts of alloys such as chromium, molybdenum, and nickel. Castings of this types are used extensively by the automobile industry.

    A) Alloyed castings
    B) 500kg
    C) Magnesium
    D) Malleable Castings
    A) Alloyed castings
    (this multiple choice question has been scrambled)
  20. Types of Cast Iron:

    _________ castings are made from a special grade of pig iron and foundry scrap. After these castings have solidified, they are annealed in special furnaces. This makes the iron malleable and resistant to shock.

    A) Malleable Castings
    B) Charpy
    C) Manganese
    D) Cupola Furnace
    A) Malleable Castings
    (this multiple choice question has been scrambled)
  21. Describe the Basic Oxygen Furnace process
    • charging scrap into furnace
    • charging molten iron into furnace
    • addition of burnt lime
    • blowing with oxygen
    • tapping the furnace for steel
    • pouring the slag
  22. Describe the Electric Furnace process
    • used to make fine alloy and tool steels
    • scrap steel into the furnace
    • electrodes are lowered until arc jumps to scrap
    • scrap melts
    • alloying materials are added
    • furnace is tilted
    • steel flows into ladle
  23. Steel Processing:

    _____ are generally rectangular or square and are larger than 36" in cross section.
    They are used to manufacture structural steel and rails.

    A) Chilled-iron castings
    B) Blooms
    C) Charpy impact test or the Izod test.
    D) Billets
    B) Blooms
    (this multiple choice question has been scrambled)
  24. Steel Processing:

    _____ are generally rectangular or square and are smaller than 36" in cross section.
    They are used to manufacture structural steel and rails.

    A) Cupola Furnace
    B) Decalescence Point
    C) Billets
    D) Blooms
    C) Billets
    (this multiple choice question has been scrambled)
  25. Steel Processing:

    _____ are usually thinner and wider than billets.
    They are used to manufacture plates, sheet, and strip steel.

    A) Hematite
    B) Chilled-iron castings
    C) Slabs
    D) Silicon
    C) Slabs
    (this multiple choice question has been scrambled)
  26. Alloying Elements:

    ______ is the element that has the greatest influence on the property of the steel, since it is the hardening agent. The hardenability, tensile strength, and wear resistance will be increased up to about 0.83%.

    A) Gamma Iron
    B) Carbon
    C) Lead
    D) Copper
    B) Carbon
    (this multiple choice question has been scrambled)
  27. _________, when added in small quantities (0.30% to 0.60%) during the manufacture of steel, acts as a deoxidizer or purifier. _________ helps to remove the oxygen, which, if it remained, would make the steel weak and brittle.

    A) Manganese
    B) Lead
    C) Sulfur
    D) Magnesium
    A) Manganese
    (this multiple choice question has been scrambled)
  28. __________ is generally considered an undesirable element in carbon steel when present in amounts over 0.6%, since it will cause the steel to fail under vibration or shock. Small amounts of __________ (about 0.3%) tend to eliminate blow holes and decrease shrinkage in the steel.

    See "Cold-Shortness".

    A) Carbon
    B) Phosphorus
    C) Silicon
    D) Copper
    B) Phosphorus
    (this multiple choice question has been scrambled)
  29. _______, present in most steels in amounts from 0.10% to 0.30%, acts as a deoxidizer and makes steel sound when it is cast or hot-worked.

    A) Silicon
    B) Manganese
    C) Cementite
    D) Nickel
    A) Silicon
    (this multiple choice question has been scrambled)
  30. ______, generally considered an impurity in steel, causes the steel to crack during working at high temperatures

    See "Hot-Shortness".

    A) Austenite
    B) Magnesium
    C) Sulfur
    D) Aluminum
    C) Sulfur
    (this multiple choice question has been scrambled)
  31. Low-Carbon Steel:

    Contains between ____% and ____% carbon by mass. This type of steel can not be hardened.

    Ex. "Cold-Rolled Steel"

    A) 0.02% and 0.30%
    B) 0.30% and 0.60%
    C) 0.60% and 1.7%
    D) Critical Range
    A) 0.02% and 0.30%
    (this multiple choice question has been scrambled)
  32. Medium-Carbon Steel:

    Contains between ____% and ____% carbon by mass. It is used where greater tensile strength is required and is ideal for forging.

    A) 0.02% and 0.30%
    B) 0.30% and 0.60%
    C) 0.60% and 1.7%
    D) Critical Range
    B) 0.30% and 0.60%
    (this multiple choice question has been scrambled)
  33. High-Carbon Steel:

    Contains between ____% and ____% carbon by mass. This is also know as tool steel and is used in cutting tools and "Hot-Rolled Steel".

    A) Recalescence Point
    B) 0.30% and 0.60%
    C) 0.60% and 1.7%
    D) 0.02% and 0.30%
    C) 0.60% and 1.7%
    (this multiple choice question has been scrambled)
  34. What are the 7 properties alloying imparts on steel?
    • Increased tensile strength
    • Increased Hardness
    • Increased Toughness
    • Alteration of the critical temperature of the steel
    • Increased wear abrasion
    • Red Hardness
    • Corrosion Resistance
  35. ____________ Point:

    The temperature at which carbon steel, when being heated, transforms from pearlite to austenite; 1330 oF (721 oC) for 0.83% Carbon Steel.

    A) Recalescence Point
    B) Decalescence Point
    C) Eutectoid Steel
    D) Annealing
    B) Decalescence Point
    (this multiple choice question has been scrambled)
  36. ____________ Point:

    The temperature at which carbon steel, when being slowly cooled, transforms from austenite to pearlite.

    A) Recalescence Point
    B) Hypoeutectoid steel.
    C) Decalescence Point
    D) Hypereutectoid Steel.
    A) Recalescence Point
    (this multiple choice question has been scrambled)
  37. _____ critical temperature point:

    The lowest temperature at which steel may be quenched in order to harden it. This temperature coincides with the decalescence point.

    A) Lower Critical Temperature Point
    B) Hypereutectoid Steel.
    C) Upper critical temperature point
    D) Recalescence Point
    A) Lower Critical Temperature Point
    (this multiple choice question has been scrambled)
  38. _____ critical temperature point:

    the highest temperature at which steel may be quenched in order to attain maximum hardness and the finest grain structure.

    A) Lower Critical Temperature Point
    B) Upper critical temperature point
    C) Recalescence Point
    D) Scleroscope hardness tester
    B) Upper critical temperature point
    (this multiple choice question has been scrambled)
  39. ________ _____:

    The temperature range bounded by the upper and lower critical temperatures.

    A) Cupola Furnace
    B) Blast Furnace
    C) Decalescence Point
    D) Critical Range
    D) Critical Range
    (this multiple choice question has been scrambled)
  40. ___________:

    The heating of steel above its lower critical temperature and quenching in the proper medium to produce martensite.

    A) Aluminum
    B) Annealing
    C) Spheroidizing
    D) hardening
    D) hardening
    (this multiple choice question has been scrambled)
  41. _________:

    reheating hardening steel to a desired temperature below its lower critical temperature, followed by any desired rate of cooling.

    A) Tempering or Drawing
    B) Nickel
    C) Water-hardening
    D) Annealing
    A) Tempering or Drawing
    (this multiple choice question has been scrambled)
  42. _________:

    heating metal to just above its upper critical point for the required period of time, followed by slow cooling in the furnace, lime, or sand.

    A) Eutectoid Steel
    B) Tempering or Drawing
    C) Annealing
    D) Air-hardening
    C) Annealing
    (this multiple choice question has been scrambled)
  43. ___________:

    heating the steel to just above its upper critical temperature and cooling it in still air. ___________ is done to improve the grain structure and remove the stresses and stains.

    A) Normalizing
    B) Spheroidizing
    C) hardening
    D) Alpha Iron
    A) Normalizing
    (this multiple choice question has been scrambled)
  44. _____________:

    the heating of steel to just below the lower critical temperature for a prolonged period of time followed by cooling in still air. This process produces a grain structure with globular-shaped particles of cementite.

    A) Spheroidizing
    B) Blast Furnace
    C) Decalescence Point
    D) Normalizing
    A) Spheroidizing
    (this multiple choice question has been scrambled)
  45. _____ Iron:

    the state in which iron exists below the lower critical temperature. In this state, the atoms form a body-centered cube.

    A) Hypereutectoid Steel.
    B) Scleroscope hardness tester
    C) Alpha Iron
    D) Gamma Iron
    C) Alpha Iron
    (this multiple choice question has been scrambled)
  46. _____ iron:

    the state in which iron exists in the critical range. In this state the molecules form face-centered cubes. _____ iron is nonmagnetic.

    A) Aluminum
    B) Water-hardening
    C) Alpha Iron
    D) Gamma Iron
    D) Gamma Iron
    (this multiple choice question has been scrambled)
  47. _____:

    A laminated structure of ferrite, usually the condition of steel before heat treatment.

    A) Pearlite
    B) Martensite
    C) Cupola Furnace
    D) Blooms
    A) Pearlite
  48. _________:

    a carbide of iron (Fe3C), which is the hardener in steel.

    A) Austenite
    B) Manganese
    C) Eutectoid Steel
    D) Cementite
    D) Cementite
  49. _________:

    a solid solution of carbon in iron, which exists between the lower and upper critical temperatures.

    A) Magnetite
    B) Gamma Iron
    C) Austenite
    D) Alloyed castings
    C) Austenite
  50. __________:

    the structure of fully hardened steel obtained when austenite is quenched.

    A) Martensite
    B) Austenite
    C) Cementite
    D) Malleability
    A) Martensite
    (this multiple choice question has been scrambled)
  51. _________ Steel:

    steel containing just enough carbon to dissolve completely in the iron when the when the steel is heated to its critical range. _________ steel contains 0.80% and 0.85% carbon.

    A) Decalescence Point
    B) Eutectoid Steel
    C) Hypereutectoid Steel.
    D) Limonite
    B) Eutectoid Steel
    (this multiple choice question has been scrambled)
  52. ______________ Steel:

    Steel containing more carbon than will completely dissolve in the iron when the steel is heated to the critical range.

    A) Hypoeutectoid steel.
    B) Oil-Hardening
    C) Hypereutectoid Steel.
    D) Cupola Furnace
    C) Hypereutectoid Steel.
    (this multiple choice question has been scrambled)
  53. _____________ Steel:

    Steel containing less carbon than can be dissolved by the iron when the steel is heated to the critical range.

    A) Hypoeutectoid steel.
    B) Gamma Iron
    C) Oil-Hardening
    D) Eutectoid Steel
    A) Hypoeutectoid steel.
    (this multiple choice question has been scrambled)
  54. _____-hardening tool steels generally contains from 0.50% to 1.3% carbon, along with small amounts (~0.20%) of silicon and manganese.
    _____-hardening steels achieve the maximum hardness for a depth of about 1/8" (3mm); the inner core remains softer but still tough.

    A) Oil-Hardening
    B) Water-hardening
    C) Phosphorus
    D) Critical Range
    B) Water-hardening
    (this multiple choice question has been scrambled)
  55. A typical ___-hardening steel contains about 0.90% carbon, 1.6% manganese, and 0.25% silicon.

    A) Oil-Hardening
    B) Air-hardening
    C) Limonite
    D) Duralumin
    A) Oil-Hardening
    (this multiple choice question has been scrambled)
  56. Due to slower cooling rates of ___-hardening steels, the stresses and strains that cause cracking and distortion are kept to a minimum.

    A) Water-hardening
    B) Ductility
    C) Air-hardening
    D) 0.02% and 0.30%
    C) Air-hardening
    (this multiple choice question has been scrambled)
  57. Name 3 hardness tests that use depth of penetration made by a penetrator under a known load:
    • Rockwell
    • Brinell
    • Vickers
  58. The ________ hardness tester indicates the hardness value by the depth that a penetrator advances into the metal under a load. A 120o conical diamond penetrator (brale) is used for testing hard materials.

    A) Brinell hardness tester
    B) Spheroidizing
    C) Gamma Iron
    D) Rockwell hardness tester
    D) Rockwell hardness tester
    (this multiple choice question has been scrambled)
  59. Describe the penetrator, load and material tested on the Rockwell "C" scale.
    • 120o diamond penetrator
    • 330lb (or 150kg)
    • for testing hardened metals
  60. Describe the penetrator, load, and material tested on the Rockwell "B" scale.
    • 1/16" (1.5 mm) ball penetrator
    • 220lb (100kg)
    • for testing soft metals
  61. The _______ hardness tester is operated by pressing a 10mm hardened steel ball under load of a 3000kg into the surface of the material and measuring the diameter of the impression with a microscope.

    A) Eutectoid Steel
    B) Magnetite
    C) Brinell hardness tester
    D) Scleroscope hardness tester
    C) Brinell hardness tester
    (this multiple choice question has been scrambled)
  62. A standard load of ___kg is used for testing non-ferrous metals.

    A) 100Kg
    B) Duralumin
    C) Charpy
    D) 500kg
    D) 500kg
    (this multiple choice question has been scrambled)
  63. The ___________ hardness tester is operated on the principle that a small diamond-tipped hammer, when dropped from a fixed height, will rebound higher from a hard surface than a softer one.

    A) hardening
    B) Scleroscope hardness tester
    C) Charpy
    D) Spheroidizing
    B) Scleroscope hardness tester
    (this multiple choice question has been scrambled)
  64. The toughness of metal, or its ability to withstand a sudden shock or impact, may be measured by the ______ impact test or the ____ test.
    Charpy impact test or the Izod test.
  65. In the ______ test, the material is mounted in a fixture and supported at both end, The V or notch is placed on the side opposite the direction of the pendulum's swing.

    A) Izod
    B) Charpy
    C) 500kg
    D) Blooms
    B) Charpy
    (this multiple choice question has been scrambled)
  66. In the ____ test, one end of the work is gripped in a clamp with the notched side towards the direction of the pendulum's swing.

    A) Copper
    B) Charpy
    C) Magnesium
    D) Izod
    D) Izod
    (this multiple choice question has been scrambled)
  67. ________ is a light, soft, white metal produced from bauxite ore. It is resistant to atmospheric corrosion and is a good conductor of electricity and heat. It is malleable and ductile and can easily be machined, forged, rolled, and extruded.

    A) Duralumin
    B) Aluminum
    C) Copper
    D) Sulfur
    B) Aluminum
    (this multiple choice question has been scrambled)
  68. _________, an alloy of 95% aluminum, 4% copper, 0.05% manganese, and 0.05% magnesium, is widely used in the aircraft and transportation industries.

    A) Aluminum
    B) Gamma Iron
    C) Duralumin
    D) Austenite
    C) Duralumin
    (this multiple choice question has been scrambled)
  69. ______ is a heavy, soft, reddish-coloured metal refined from ______ ore (______ sulfide). It has high electrical and thermal conductivity, has good corrosion resistance and strength. It is very ductile and is easily drawn into wire and tubing.

    A) Carbon
    B) Lead
    C) Charpy
    D) Copper
    D) Copper
    (this multiple choice question has been scrambled)
  70. _____, is an alloy of Copper and Zinc.

    It has good corrosion resistance and is easily formed, machined, and cast.

    A) Gamma Iron
    B) Billets
    C) Bronze
    D) Brass
    D) Brass
    (this multiple choice question has been scrambled)
  71. ______ is an alloy of Copper and Tin.

    A) Brass
    B) Sulfur
    C) Bronze
    D) Lead
    C) Bronze
    (this multiple choice question has been scrambled)
  72. ____ is a soft, heavy metal that has a bright, silvery colour when freshly cut but turns grey quickly when exposed to air.

    A) Air-hardening
    B) Bronze
    C) Solder
    D) Lead
    D) Lead
    (this multiple choice question has been scrambled)
  73. What are the 2 most common alloying elements of Lead?
    Antimony and Tin
  74. ______, is an alloy of Lead and Tin.

    A) Malleability
    B) Copper
    C) Solder
    D) Annealing
    C) Solder
    (this multiple choice question has been scrambled)
  75. _________ is a lightweight element that, when alloyed, produces a light, strong metal used extensively in the air craft and missile industries.

    A) Brass
    B) Aluminum
    C) Duralumin
    D) Magnesium
    D) Magnesium
    (this multiple choice question has been scrambled)
  76. ______, a whitish metal, is noted for its resistance to corrosion and oxidation. It is used extensively for electroplating, but its most important application is in the manufacture of stainless and alloy steels.

    A) Lead
    B) Nickel
    C) Aluminum
    D) Brittleness
    B) Nickel
    (this multiple choice question has been scrambled)

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