Multiple Choice Identify the letter of the choice that best
completes the statement or answers the question.
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1.
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The metal working tool used to cut external threads is called a(n)
_______.
a. | tap | b. | chuck | c. | die | d. | bolt threader |
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2.
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When using a drill press, the proper drilling speed (RPM) for metal is
determined by the _______.
a. | thickness of the metal | c. | horsepower of the drill press motor | b. | diameter of the
drill bit | d. | type of cutting
oil used |
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3.
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When drilling long stock in a drill press, the stock should be placed to the
______.
a. | operator’s left | c. | side of the drill press | b. | operator’s
right | d. | Any of these are
correct |
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4.
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When drilling metal in a drill press, the metal should be ______.
a. | center punched | c. | lubricated | b. | securely fastened | d. | All of these are
correct |
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5.
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The _____ type of tap would be used to thread a “blind” hole.
a. | bottoming | c. | taper | b. | plug | d. | All of these are
correct |
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6.
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The size of the drill press is determined by ______.
a. | the horsepower of the motor | b. | the maximum diameter drill bit that can be
used | c. | the area of the drilling table | d. | None of these are
correct |
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7.
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A ______ would be the correct tool to use to locate the center of a piece of
round metal.
a. | center head | b. | miter head | c. | protractor head | d. | steel
ruler |
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8.
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The size of a twist drill bit may be indicated by _____.
a. | number | c. | fraction | b. | letter | d. | All of these are
correct |
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9.
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Bolts and nuts with NC threads are normally used on machinery where
_____.
a. | there is little vibration | c. | the bolts must be removed
often | b. | there is a lot of vibration | d. | close tolerances are not required |
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10.
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A die stamped, 1/2” NC 13 will _____.
a. | thread a hole 1/2 inch deep | c. | cut 13 threads per inch on a
rod | b. | thread a hole 13 inches deep | d. | None of these are
correct |
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11.
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The grinding wheels o a 6 inch, 1725 RPM bench grinder would have a speed
(surface feet per minute, SFPM) of ____.
a. | 1,278 | b. | 2,578 | c. | 3,854 | d. | 30,909 |
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12.
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A 60 grit grinding wheel would be classified as a ____ grit wheel.
a. | Coarse | b. | Medium | c. | Fine | d. | Very
fine |
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13.
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The tool rest on a grinder should be no more than_____ -inch away from the
grinding wheel.
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14.
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The cutting lips of a twist drill should be shaped to form a ____ -degree
included angle.
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15.
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When fitting a drill bit with a grinder, the bit should be cooled often to
prevent _____.
a. | drawing the bit’s temper | c. | damage to the grinding
wheel | b. | keep the grinding wheel clean | d. | None of these are
correct |
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16.
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The size of a bench grinder is determined by the ______.
a. | diameter of the arbor shaft | c. | diameter of the grinding of the
wheel | b. | horsepower of the motor | d. | All of these are correct |
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17.
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A grinding wheel should be discarded when it is worn to ______ of its original
diameter.
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18.
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A cold chisel should be sharpened to a _____ degree angle.
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19.
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The _____ determines the maximum recommended RPM for a grinding wheel.
a. | grit size | c. | type of bond | b. | type of abrasive | d. | None of these are
correct |
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20.
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Grinding wheels are sized by the _______.
a. | diameter of the wheel | c. | maximum recommended RPM | b. | width of the
wheel | d. | All of these are
correct |
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21.
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A drawing that shows three separate views of the same object is a(n)_______
drawing.
a. | isometric | b. | orthographic | c. | oblique | d. | pictorial |
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22.
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The ____ scale used fractions of an inch to represent one foot.
a. | architects | b. | fractional | c. | civil engineers | d. | foot
rule |
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23.
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_______ is an example of a computer-aided-drafting software program.
a. | AutoCAD | b. | Quattro Pro | c. | Excel | d. | Authorware |
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24.
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Oblique and isometric drawings are examples of _______ drawings.
a. | scaled | b. | orthographic | c. | pictorial | d. | elliptical |
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25.
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_____ are used with the T-square to draw angled lines in mechanical
drafting.
a. | Dividers | b. | Compasses | c. | Triangles | d. | Bow
pens |
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26.
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A _____ line is used to show parts of an object that are not visible.
a. | break | b. | dimension | c. | extension | d. | hidden |
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27.
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_______ lines are used with dimension lines to indicate the extent of a
measurement.
a. | Extension | b. | Hidden | c. | Border | d. | Object |
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28.
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A ____ line is used to indicate what part of the plan a note refers to.
a. | dimension | b. | extension | c. | call-out | d. | leader |
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29.
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A _____ is a freehand drawing of an object.
a. | blueprint | c. | orthographic projection | b. | sketch | d. | figure |
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30.
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A(n) ____ grade pencil should be used to make mechanical drawings.
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31.
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When welding with an oxyacetylene welding outfit, the acetylene cylinder valve
should never be opened more than _____ turn(s).
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32.
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The maximum safe working pressure for acetylene is ___ psi.
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33.
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The safe maximum flow rate from a 140 cubic foot acetylene cylinder is _____
cubic feet per hour.
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34.
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A Number _____ shade filter lens should be worn when cutting 1/2 inch steel with
an oxyacetylene torch.
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35.
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The recommended tip size for welding mild steel with the oxyacetylene outfit is
based on the ______.
a. | Oxygen and acetylene pressure settings | c. | Flame type | b. | Thickness of the
metal | d. | All of these are
correct |
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36.
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A(n) ____ flame is used when hardsurfacing with an oxyacetylene outfit.
a. | Excess acetylene | b. | Neutral | c. | Oxidizing | d. | Hardening |
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37.
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A(n) _____ flame should be used when cutting cast iron with the oxyacetylene
cutting torch.
a. | Excess acetylene | b. | Neutral | c. | Oxidizing | d. | Hardening |
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38.
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A(n) ____ flame should be used when fusion welding mild steel.
a. | Excess acetylene | b. | Neutral | c. | Oxidizing | d. | Hardening |
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39.
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Acetylene hoses and fittings are _______.
a. | Red with right-hand threads | c. | Red with left-hand
threads | b. | Green with right-hand threads | d. | Red with right-hand
threads |
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40.
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The size of a oxyacetylene welding tip is based on the ______.
a. | Diameter of the orifice | c. | Length of the
tip | b. | Diameter of the tube | d. | none of these are correct |
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41.
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______-core solder should be used when soldering electronic equipment.
a. | Acid | b. | Metallic | c. | Rosin | d. | Specialty |
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42.
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_______ is a type of non-fusion welding.
a. | Soldering | c. | None of these are correct | b. | Brazing | d. | Soldering and Brazing |
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43.
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The melting point of solder is less than _____ degrees F.
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44.
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The ____ cold chisel is used for general purpose metal working.
a. | flat | b. | diamond point | c. | cape | d. | half-round |
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45.
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_____ may be drilled on a drill press without using any lubricant.
a. | Cast iron | c. | Tool steel | b. | Aluminum | d. | None of these are
correct |
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46.
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A ____ is used to fasten wood to metal.
a. | stove bolt | b. | carriage bolt | c. | rivet | d. | machine |
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47.
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A complete set of taps, dies, die stocks and tap wrenches is called a
______.
a. | machinist’s kit | b. | thread set | c. | screw plate | d. | ratchet
set |
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48.
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In an oxyacetylene welding outfit, working pressure are set by adjusting the
_____.
a. | regulators | c. | flashback arresters | b. | torch valves | d. | cylinder valves |
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49.
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Acetylene belongs to the ______ family of chemical compounds.
a. | benzene | c. | hydrocarbon | b. | normal heptane | d. | None of these are
correct |
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50.
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When using a hand hacksaw, _____ teeth should always be in contact with the
metal being cut.
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