MTT-100 Final Test

Robert C. Meeker

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  1. On mechanical drawings(blueprints) the common fractional system is written in units of:

    2. Your answer:
    1/8
    3/4
    1 1/2
    All of the above
    None of the above

  2. For distances requiring greater precision other than the common fractional system decimal fraction is used.

    3. Your answer:
    TrueFalse

  3. Incremental system is used were all dimensions are given from a previous known point.

    4. Your answer:
    TrueFalse

  4. Absolute systems where all dimensions or positions are giving from a fixed zero or origin point.

    5. Your answer:
    TrueFalse

  5. CNC work uses only fractions for all dimensional values.

    6. Your answer:
    TrueFalse

    Alphabet of Lines

  6. Example of an object line is letter

    7. Your answer:
    a
    b
    c
    d
    e
    f

    Alphabet of Lines

  7. Example of a hidden line is letter

    8. Your answer:
    a
    b
    c
    d
    e
    f

    Alphabet of Lines

  8. Example of a center line is letter

    9. Your answer:
    b
    d
    a
    e
    g
    c

    Alphabet of Lines

  9. Example of dimension lines is letter

    10. Your answer:
    G
    F
    B
    A
    I
    C

    Alphabet of Lines

  10. Example of cutting-plane lines is letter

    11. Your answer:
    h
    a
    b
    c
    e
    f

    Alphabet of Lines

  11. Example of cross section line is letter

    12. Your answer:
    e
    a
    c
    h
    b
    f

  12. When both sizes (tolerances) are giving on a technical drawing known as limits

    13. Your answer:
    TrueFalse

  13. Given example of a variation tolerance is .625 +.005 -005

    14. Your answer:
    TrueFalse

  14. Example of the 32 finish is .032‡”

    15. Your answer:
    TrueFalse

  15. Iron ore is the chief raw material used in the manufacture of iron and steel.

    16. Your answer:
    TrueFalse

  16. In what direction should the teeth of a hacksaw blade point?

    17. Your answer:
    Point away from the handle.
    Point to the handle.
    At an angle
    Sideways

  17. Of what material are hacksaw blade manufactured?

    18. Your answer:
    High speed steel
    Hardened and tempered molybdenum or tungsten alloy steel.
    All of the above
    None of the above

  18. A pitch of 1/18 represents eighteen teeth per inch.

    19. Your answer:
    TrueFalse

  19. Two teeth of a hacksaw blade should be in contact with the work at all times so the work cannot jam between the teeth and strip the teeth from the saw blade.

    20. Your answer:
    TrueFalse

  20. What pitch blade is recommended for General work and Tool Steel.

    21. Your answer:
    b) 14-tooth blade.
    a) 18-tooth blade.
    c) 24-tooth blade
    d) 32-tooth blade

  21. What pitch blade is recommended for angle iron and brass.

    22. Your answer:
    b) 14-tooth blade.
    c) 24-tooth blade
    d) 32-tooth blade
    a) 18-tooth blade.

  22. When hacksawing apply equal pressure on the forward and return stroke.

    23. Your answer:
    TrueFalse

  23. On thin pieces of metal being sawn hold the saw at an angle so that at least two teeth will bear on the work at all times.

    24. Your answer:
    TrueFalse

  24. The procedure for starting a new blade in an old cut it is advisable to turn the work and start a cut in another place.

    25. Your answer:
    TrueFalse

  25. Parts of a file are, Flutes, Angle, De-Burrier, File card and Square flutes.

    26. Your answer:
    TrueFalse

  26. Files are made of hardened and tempered high-carbon steel.

    27. Your answer:
    TrueFalse

  27. Single-cut files are used when a smooth surface is desired, and when hardened materials are to be finished.

    28. Your answer:
    TrueFalse

  28. Double-cut files is used when metal is to be removed rapidly or the surface made flat before finishing by draw filing.

    29. Your answer:
    TrueFalse

  29. Terms of rough for larger files are.

    30. Your answer:
    a) Course, Bastard
    b) Second-cut, Smooth
    c) Smooth-cut
    d) All of the above
    e) None of the above

  30. The degree of coarseness indicated on small files is numbered from 00 to 8, numbers 00 being the coarsest.

    31. Your answer:
    TrueFalse

  31. It is safe to use a file as long as the tang on a file is covered with a shop towel

    32. Your answer:
    TrueFalse

  32. Applying pressure on the return stroke will dull a file quickly.

    33. Your answer:
    TrueFalse

  33. To prevent a file from clogging, clean the file teeth with the file card, and then rub chalk over the file surface.

    34. Your answer:
    TrueFalse

  34. The procedure for filing a flat surface is to rocked the file.

    35. Your answer:
    TrueFalse

  35. To tested a filed surface for flatness and squareness?

    36. Your answer:
    Check with the edge of a steel rule for flatness
    A steel square should be used to test the squareness of one surface to another.
    All of the above
    None of the above

  36. The more common milling machines are;

    37. Your answer:
    Plane knee and column.
    Universal knee and column.
    All of the above
    None of the above
    This Space Not Used

  37. Types of work that can be produced on a vertical milling machine is;

    38. Your answer:
    Flats, Angular surfaces, Grooves, Sprocket teeth, Holes and Slots
    Single Point Threads.
    Grinding Holes.
    All of the above
    None of the above

  38. The Saddle is fitted on top of the knee.

    39. Your answer:
    TrueFalse

    Machine

  39. What Type of Machine is this?

    40. Your answer:
    Grinder
    Lathe
    Drill Press
    Vertical Milling machine
    Horizontal Milling Machine

    Milling Machine

  40. What part is "A"?

    41. Your answer:
    Table
    Spindle
    Overarm
    Dividing Head
    Arbor Support

    Milling Machine

  41. What part is "B"?

    42. Your answer:
    Spindle
    Dividing Head
    Overarm
    Table
    Arbor Support

    Milling Machine

  42. What part is "C"?

    43. Your answer:
    Spindle
    Dividing Head
    Arbor Support
    Table
    Overarm

    Milling Machine

  43. What part is "D"?

    44. Your answer:
    Table
    Arbor Support
    Overarm
    Spindle
    Dividing Head

    Milling Machine

  44. What part is "E"?

    45. Your answer:
    Base
    Saddle
    Knee
    Elevating Screw
    Column

    Milling Machine

  45. What part is "F"?

    46. Your answer:
    Saddle
    Knee
    Column
    Elevating Screw
    Base

    Milling Machine

  46. What part is "G"?

    47. Your answer:
    Elevating Screw
    Knee
    Column
    Base
    Saddle

    Milling Machine

  47. What part is "H"?

    48. Your answer:
    Elevating Screw
    Base
    Saddle
    Knee
    Column

    Milling Machine

  48. What part is "I"?

    49. Your answer:
    Knee
    Base
    Column
    Elevating Screw
    Saddle

  49. What hand controls are used to move the table horizontally left and right in front of the column?

    50. Your answer:
    Table Handwheel (x)
    The Crossfeed Handwheel (y)
    All of the above
    None of the above

  50. What hand controls are used to move the table toward or away from the column?

    51. Your answer:
    Table Handwheel (x)
    The Crossfeed Handwheel (y)
    All of the above
    None of the above

  51. From what type of steel are milling cutters made?

    52. Your answer:
    High-Speed Steel (HSS)
    Special Steel With Tungsten-Carbide Teeth Or Inserts
    Carbide
    All of the above
    None of the above

  52. Two most common types of coatings used on milling cutters is titanium nitride and titanium carbide.

    53. Your answer:
    TrueFalse

  53. These coatings are applied in a thin film, about 0.0001 inch with the hardness of over 80 Rockwell.

    54. Your answer:
    TrueFalse

  54. The prime function of the coating the cutter is to;

    55. Your answer:
    Reduce abrasive wear and produce a fine finish on the workpiece.
    Add lubricity improving the chip formation the material flow
    Reduce chip welding and built-up edge
    All of the above
    None of the above

  55. The uncoated tool separated the metal and slides up the tool face, resistance to the chip flow causes small particles of the metal to weld to the cutting-tool face. This built-up age continually increases in size and until it breaks off and take some of the cutting tool material away with it. The results are a cratering action on the tool face which will eventually shorten the life of the cutting tool.

    56. Your answer:
    TrueFalse

  56. Some advantages of coated cutting tools, lower machining cost per part, higher tool life, improve surface finish, improved part quantity and quality, less downtime from tool changes.

    57. Your answer:
    TrueFalse

  57. Sometimes the elimination of two step operations such as roughing and finishing cuts.

    58. Your answer:
    TrueFalse

  58. One disadvantage of coated cutting tools is they are more costly and it is best to reduce the speed and feeds to keep from breaking the cutter.

    59. Your answer:
    TrueFalse

  59. Plane milling cutters are the most commonly used types of milling cutters.

    60. Your answer:
    TrueFalse

  60. Plane milling cutters are usually wide cylinder cutters with the teeth on the periphery.

    61. Your answer:
    TrueFalse

  61. Plane milling cutters are used for producing flat surfaces.

    62. Your answer:
    TrueFalse

  62. Side milling cutters are generally narrow cylindrical cutters with teeth on the sides and the periphery.

    63. Your answer:
    TrueFalse

  63. Side milling cutters are used for straddle milling operations.

    64. Your answer:
    TrueFalse

  64. Formed cutters are the exact shape of the part to be produced which permits duplication of parts more economically then by most other means. Formed cutters may be practically any shape such as concave, convex, and irregular.

    65. Your answer:
    TrueFalse

  65. Most common cutter problems are caused by;

    66. Your answer:
    Edges chipping, cratering, clogging and edge build-up. and work hardening of the workpiece.
    Abrasion
    Excessive heat
    All of the above
    None of the above

  66. When the cutter over heats this excessive heat can work harden of the workpiece.

    67. Your answer:
    TrueFalse

  67. All mill machine tables must be equipped with a backlash of eliminator.

    68. Your answer:
    TrueFalse

  68. Climb milling is when the cutter rotation and the table (work) feed are in the same direction.

    69. Your answer:
    TrueFalse

  69. Climb milling should be used when taking deep cuts.

    70. Your answer:
    TrueFalse

  70. Climb milling should never used for finish cutting.

    71. Your answer:
    TrueFalse

  71. Conventional milling is when using more than one cutter on an arbor.

    72. Your answer:
    TrueFalse

  72. A backlash eliminator helps in Climb and Conventional milling.

    73. Your answer:
    TrueFalse

  73. Conventional milling is when the cutter rotation and the table (work) feed are going in opposite direction. The tooth enters the cut at zero chip thickness in an upward direction and progressively gets thicker.

    74. Your answer:
    TrueFalse

  74. When conventional milling the forces try to lift the workpiece, therefore it is important that the work be held securely.

    75. Your answer:
    TrueFalse

  75. What must a milling machine have in order to successfully climb mill?

    76. Your answer:
    Have a backlash eliminator.
    Have a variable speed control.
    Have a variable feed control.

  76. When mounting or removing milling cutters, always hold them with the cloth to avoid being cut.

    77. Your answer:
    TrueFalse

  77. How should the machine be set when taking measurements?

    78. Your answer:
    Stop the machine spindle.
    Move the table as far as possible from the cutter.
    All of the above
    None of the above

  78. It is OK to keep the machine spindle running if you move the table as far as possible from the cutter and out of the way.

    79. Your answer:
    TrueFalse

  79. Precaution should be taken when removing steel chips with a brush and remove the chips after the cutter has stopped revolving.

    80. Your answer:
    TrueFalse

  80. If the sides of the work do not have to be exactly square, how may the vise be aligned?

    81. Your answer:
    Align the lines on the vise and the swivel base.
    The vise may be aligned at right angles to the table travel by placing the body of a steel square against the column face and the other age against a solid jaw of the vice
    If only a “face cut” is going to be performed there is no need to align the vise just make sure the vice is secure to the table.
    All of the above
    None of the above

  81. When accuracy is required a dial indicator should be used.

    82. Your answer:
    TrueFalse

  82. To set a cutter to the work surface before setting a depth of cut.

    83. Your answer:
    Raise the work within a 1/4 inch of the cutter, and directly under it.
    Hold a long piece of thin paper on the work surface, or, a safer method is to soak a short piece of paper in coolant and pasted it on the work.
    Start the cutter rotating and raise the table to bring the work of slowly until the cutter just touches of paper.
    All of the above
    None of the above

  83. To assure that the workpiece is parallel in the vice paper feelers can be use when setting up work on parallels?

    84. Your answer:
    TrueFalse

  84. What depth of cut is recommended for rough cuts?

    85. Your answer:
    Use a depth of cut not more than 1/2.
    Use a depth of cut not more than .010 to .025.
    Use a depth of cut not less than 1/8 (.125) inch.

  85. What depth of cut is recommended for finished cuts.

    86. Your answer:
    Use a depth of cut not less than .125 inch.
    Use a depth of cut not more than 1/64.
    Use a depth of cut not more than .010 to .025.

  86. Side milling is often used to machine a vertical surface on the sides or the ends of a workpiece.

    87. Your answer:
    TrueFalse

  87. Precaution should be observed when setting up work for side milling and be sure that the surface projects about a 1/2 beyond the edge of the vice and the parallels.

    88. Your answer:
    TrueFalse

  88. What precaution should be observed when setting a cutter on an arbor?

    89. Your answer:
    Be sure that the cutter teeth are positioned in the proper direction for the cutter rotation.
    Be sure that the spacers are positioned on the arbor positioning the cutter/s in the proper location.
    Be sure that the key is installed in the arbor and the cutter.
    All of the above
    None of the above

  89. The side-milling cutter should be mounted as close to the spindle as possible so the cutter can be seen at all times.

    90. Your answer:
    TrueFalse

  90. The side-milling cutter should be mounted as close to the machined column or the arbor support as possible to provide maximum rigidity when milling.

    91. Your answer:
    TrueFalse

  91. Drilling can not be performed on a Horizontal mill.

    92. Your answer:
    TrueFalse

  92. The cutter is driven by a key that fits into the keyway on the arbor and the cutter to prevent it from turning on the arbor.

    93. Your answer:
    TrueFalse

  93. Spacers and bearing bushings hold the cutter in position on the arbor.

    94. Your answer:
    TrueFalse

  94. Before the arbor support is installed the arbor nut should be tighten.

    95. Your answer:
    TrueFalse

  95. Before mounting an arbor

    96. Your answer:
    The spindle must be cleaned and arbor tapers must be cleaned.
    The arbor support and bearing must be cleaned.
    The arbor must be cleaned.
    All of the above
    None of the above

  96. Dirt, burrs, or metal chips will damage that machine and the arbor tapers, and prevent the arbor from running true.

    97. Your answer:
    TrueFalse

  97. The draw-in bar tightens the Arbor security against the back of the spindle and secures the tapers in position.

    98. Your answer:
    TrueFalse

  98. To remove an arbor.

    99. Your answer:
    Remove the milling machine cutter.
    Loosen the locknut on the draw-in bar approximately two turns and with a soft-faced hammer, hit the end of the draw-in bar until the arbor taper is free in the spindle.
    With one hand, hold the arbor, and use the other hand to unscrew the draw-in bar from the arbor and carefully remove the harbor from the tapered spindle to avoid damaging the spindle or the arbor tapers.
    All of the above
    None of the above

  99. Whenever possible, locate the cutter close to the machine column or the arbor support to provide the best rigidity during the machining operation.

    100. Your answer:
    TrueFalse

  100. What should be checked before starting to mill a surface?

    101. Your answer:
    Check the arbor to assure the draw-in bar is tight and the arbor is secure and all spacers are in position on the arbor, the cutter is keyed.
    The arbor support is secured and the bearing bushing is on the harbor.
    Check that the arbor rotation and that the cutter is rotating in the same direction and make sure that the arbor support clears the work and vice.
    All of the above
    None of the above

  101. Masonite or wood should not be used to protect the machine table, cutter, and arbor collars, from damage.

    102. Your answer:
    TrueFalse

  102. Tighten the arbor not without the arbor support in place, it may bend the arbor.

    103. Your answer:
    TrueFalse

  103. The indexing or dividing head, is a device used to divide the circumference of a piece of work into any number of equal parts and to hold the work in the require position while the cuts are being made.

    104. Your answer:
    TrueFalse

  104. To revolve the Indexing Head spindle one complete turn the index crank must be turned;

    105. Your answer:
    20 times.
    50 times.
    40 times.
    All of the above
    None of the above

  105. What is the formula for calculating simple indexing?

    106. Your answer:
    N= 40 / (No. of divisions to be cut) =No. of turns of the indexing crank.
    N= 50 / (No. of divisions to be cut) =No. of turns of the indexing crank.
    N= 20 / (No. of divisions to be cut) =No. of turns of the indexing crank.

  106. For the milling machines use in Cerritos College Machine Shop Lab the feed should be adjusted to the feed 9-12 ipm.

    107. Your answer:
    TrueFalse

  107. Although Speeds and Feeds for Grinding are not noted in the text there are formulas for calculating speeds and feeds available in other publications.

    108. Your answer:
    TrueFalse

  108. The Speeds and Feeds formula for drilling is the same for the drill press, mill and lathe.

    109. Your answer:
    TrueFalse

  109. CS = Cutting Speeds.

    110. Your answer:
    TrueFalse

  110. The Speeds and Feeds text formulas Constant of 4 is derived by dividing pi (3.1416) into 12 and rounding the sum up to 4.

    111. Your answer:
    TrueFalse

  111. Spindle speeds (RPM) are calculated using one standard formula for lathes, mill and drilling.

    112. Your answer:
    TrueFalse

  112. The Lathe Feed formula is: feed = N X c.p.t. X r/min.

    113. Your answer:
    TrueFalse

  113. When calculating Speeds and Feeds there is on need to allow for rough or finish cuts.

    114. Your answer:
    TrueFalse

    Mill Cutters

  114. Match the Parts of the Mill Cutters With the Appropriate letter. What is Letter B

    115. Your answer:
    Carbide Tipped Plain Mill
    Dove Tail
    Integral – Tooth
    Four-Flute End Mill
    Concave Cutter
    Helical Mill
    Ball End Mill
    Keyseat Cutter

    Mill Cutters

  115. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter F

    116. Your answer:
    Dove Tail
    Helical Mill
    Carbide Tipped Plain Mill
    Four-Flute End Mill
    Concave Cutter
    Integral – Tooth
    Keyseat Cutter
    Ball End Mill

    Mill Cutters

  116. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter C

    117. Your answer:
    Concave Cutter
    Helical Mill
    Ball End Mill
    Carbide Tipped Plain Mill
    Keyseat Cutter
    Four-Flute End Mill
    Dove Tail
    Integral – Tooth

    Mill Cutters

  117. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter G

    118. Your answer:
    Helical Mill
    Four-Flute End Mill
    Keyseat Cutter
    Concave Cutter
    Integral – Tooth
    Dove Tail
    Ball End Mill
    Carbide Tipped Plain Mill

    Mill Cutters

  118. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter A

    119. Your answer:
    Dove Tail
    Helical Mill
    Carbide Tipped Plain Mill
    Integral – Tooth
    Four-Flute End Mill
    Ball End Mill
    Keyseat Cutter
    Concave Cutter

    Mill Cutters

  119. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter D

    120. Your answer:
    Dove Tail
    Helical Mill
    Keyseat Cutter
    Ball End Mill
    Concave Cutter
    Integral – Tooth
    Carbide Tipped Plain Mill
    Four-Flute End Mill

    Mill Cutters

  120. Match the Parts of the Mill Cutters With the Appropriate letter.What is Letter E

    121. Your answer:
    Helical Mill
    Ball End Mill
    Concave Cutter
    Four-Flute End Mill
    Dove Tail
    Integral – Tooth
    Keyseat Cutter
    Carbide Tipped Plain Mill

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