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100 Cards in this Set
- Front
- Back
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If you notice the fiberglass handle on your hammer is split, you should |
d. replace the hammer |
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To prepare a chisel for cutting hard materials, grind the cutting-edge included angle to |
c. 70 degrees |
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For a hard-to-reach wrenching job, hold the pliers |
b. tightly near the handle end for leverage |
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When using a portable disk sander, approximately what angle should you maintain between the sanding disk and workpiece surface? |
a. 15 degrees |
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If you are going to use a high-speed grinder in the shop |
b. use a curtain to protect other shop personnel |
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Two COMMON types of surface plates are made of |
a. cast iron and granite |
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What feature prevents cast-iron surface plates from rocking on uneven surfaces? |
d. Three legs |
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When placing heavy items on a surface plate, |
c. set them on the plate edge and slide them into position |
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If you drop an object on the surface of cast-iron surface plate and it nicks the plate, how to you remove the nick? |
b. Hone the nick with an oilstone |
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What is NOT recommended for daily cleaning of granite surface plates? |
b. Mild soap and water |
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What are the STANDARD lengths of sine bars? |
b. 5 and 10 inches |
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What tool can you use if you find the vernier caliper too awkward to handle while trying to take a measurement? |
b. Telescoping gage |
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What is the CORRECT way to operate the telescoping gage when using it to gage a hole? |
c. Set the gage in the hole, open it slowly, and let the plungers expand fully in the hole for measurement |
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Use Acme thread tool gages to |
a. set up thread-cutting tools in lathes |
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What is the reading on 1-inch depth micrometer when all the graduations are exposed? |
a. 0.000 |
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What determines the LARGEST measurement possible when using an inside micrometer? |
d. Longest extension rod |
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To obtain the correct diameter of a hole when using an inside micrometer, you must add to the actual micrometer reading the length of the |
d. body and extension rod |
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On an internal micrometer, what feature permits you to obtain very reliable readings? |
b. Three-point measuring contact system |
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On vernier calipers, what is the MAXIMUM deviation parallelism permitted? |
a. 0.0005 inch |
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Each graduation on the MAIN scale of a vernier caliper or height gage equals |
c. 0.025 inch |
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The vernier bevel protractor accurately divides a degree into segments of |
a. 5 seconds |
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To check for curvature in a shaft with a dial indicator, mount the ends of the shaft in V-blocks, and then take |
c. four indicator readings around the shaft 90 degrees apart |
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On what material would you use an all-hard hacksaw blade? |
d. Brass |
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Which hacksaw blade do you use to saw hollow shapes and metals of light cross section? |
d. Flexible |
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How many strokes per minute is the BEST cutting speed when using a hand hacksaw? |
c. 40 to 50 |
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If you had to cut a very thin piece of material with a hacksaw, what could you do to keep the saw from chattering? |
c. Clamp the stock between two wood scraps |
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The CUT of a file refers to the |
c. coarseness and type of cut |
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Which file would you select if you had to finish filing threads on a threaded rod? |
c. Three-square |
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Which file would you select if you need a safe cutting edge for filing a keyway? |
c. Pillar |
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Which scraper would you select to scrape the angular portion of a dovetail bearing surface? |
a. Hooked |
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When you scrape the mating surfaces while using mating parts to identify high spots, notice the spots |
c. decrease in number and size |
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To ream a hole with an interrupted cut, such as keyway, select |
a. a helical fluted reamer |
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On a tap, what does the marking "LH" after the thread series indicate? |
b. A left-handed tap |
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Using the formula DS = TD - 1/N, what size tap drill do you select for a 3/8-20 NC tap? |
c. 0.325 inch |
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To remove a broken tap with at least 1/4 inch of the tap protruding above the parent metal, first |
c. grind flats on the tap and remove it using vise grips |
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The DIFFERENCE between the starting and trailing sides of a die is the |
b. starting side has three tapered threads; the trailing side has one tapered thread |
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The MAIN purpose of using lubricants in shop machinery is to |
a. reduce friction |
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The tendency of an oil to resist flow is known as its |
b. viscosity |
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Which type of grease is BEST used as a lubricant for machines prone to high-temperature operations and churning? |
a. Soda-soap |
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One limitation of using a solid lubricant is it cannot |
a. carry away heat |
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What oiling system pumps the oil to the machine bearings? |
c. Centralized |
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An oiling system that provides cooling, as well as lubrication, is called a |
a. bath system |
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The MAIN purpose of using a coolant is to |
c. carry away cutting tool heat |
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All cutting fluids extracted from petroleum are classified as |
b. mineral oils |
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In a machining operation where the workpiece is a magnesium casting, you would select a cutting oil that |
a. does not contain water |
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The mist-type coolant delivery system is used |
b. for low-speed machining only |
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What is the purpose of the flexible air line on the head of the contour machine? |
c. Keep layout lines free from chips |
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What part of a saw band provides chip clearance? |
d. Gullet |
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The SET of a saw band is the |
c. total amount the teeth are offset |
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What is the MINIMUM number of saw band teeth that should be in contact with the workpiece at all times? |
b. 2 |
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Which file band is BEST for filing tool steel? |
d. 16-to 20-pitch bastard cut |
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What causes excessive wear on the idler and drive wheels when using the contour machine? |
d. Excessive tension |
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The amount of feed pressure required for filing operations on the contour machine is determined by the |
d. finish required on the material |
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Which type of band do you use for straight sawing operations? |
b. Widest available |
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Which factors MUST you consider when selecting a saw band for contour sawing |
b. Smallest radius to be cut and material thickness |
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When performing a stacking-sawing operation on the contour machine, the thickness of the stack should be |
b. no greater than the stack width at the base |
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When selecting and mounting a saw band for friction sawing on the contour machine, select a |
b. dull band and mount it with the teeth upside down |
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When performing friction sawing, use |
a. high band velocity and high feed pressure |
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On the contour machine, the angular saw guides |
c. twist the saw band to a 30 degree angle |
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Rotating the switch cutoff adjustment on the saw band welder of a contour machine affects the |
a. weld timing |
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What factor(s) do you need to consider when selecting the proper blade for a cutoff operation |
a. Size, shape, and cross section of the workpiece |
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To prevent coolant stoppage during cutoff equipment operation, |
a. clean the coolant filter |
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One difference between contour machine bands and horizontal cutoff saw bands is the |
b. gage is thicker on the cutoff saw bands |
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To regulate the rate of cut on a horizontal band saw, use the |
c. feed adjustment |
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The hold-downs on a universal punching and shearing machine |
c. prevent material kickback |
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When making multiple notching cuts on the universal punching and shearing machine, the blade should be lubricated |
d. every 10 to 15 cuts |
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To prevent punch failure on a universal punching and shearing machine, |
a. do not punch holes in material thicker than the punch diameter |
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The size of a radial drill pressure is designated by the |
d. distance from the center of the spindle to the edge of the column with the head extended |
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The component of the radial press that swivels and permits you to drill outsized workpieces |
d. arm |
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The portion of the land of a drill that is NOT cut away to provide clearance is referred to as the |
b. margin |
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A drill that has a heat-treated holder with a blade made from high-speed steel or cemented carbide BEST describes a |
c. spade drill |
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What machine reamer design feature prevents chatter during reaming operations? |
b. Unequally spaced teeth |
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What is the MAXIMUM amount of metal you can remove with a rose reamer during roughing operations? |
c. 0.030 inch |
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When selecting a pilot for a .500-inch counterbore, select one that is |
a. 0.001 to 0.002 inch undersize |
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To spot-face a hole correctly, set the speed at |
b. 25 percent of the drilling speed |
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What is the recommended chisel edge angle on drill bits intended for general drilling operations on carbon steel? |
b. 118 degrees |
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How do you keep the work from "climbing up" the drill bit as it emerges through the work? |
b. Reduce the feed pressure |
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One way to prevent chatter when machine reaming is to |
b. decrease the cutting speed |
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Before you raise or lower a radial drill press that has been idle for a couple of days, |
c. clean the column and apply a fresh oil film |
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What is the MOST COMMON type of abrasive used in grinding wheels? |
b. Aluminum oxide |
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In the grinding wheel marking "A60-L6-V11", what does the letter V designate? |
a. Bond type |
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After you mount a grinding wheel, what important step MUST you perform prior to using it in a grinding operation? |
a. Stand aside and let it run for 1 minute |
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When selecting a flange for mounting a grinding wheel, it should be APPROXIMATELY |
d. one-third the diameter of the wheel |
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The purpose of dressing a grinding wheel is to |
b. improve cutting action |
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The MOST EFFICIENT type of grinding wheel dresser for TRUING wheels used to perform precision grinding is the |
a. diamond dresser |
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When grinding drill points, NEVER raise the shank higher than the cutting edge while you grind or you will |
d. grind a negative relief angle on the cutting edge |
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When tracking the best on a belt sander, ensure the machine |
d. is running |
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When using sand for abrasive blasting operations on sheet metal, ensure the material is thicker than |
c. 0.0625 inch |
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You must replace the nozzle on a media blasting machine when |
a. the outlet is worn to 1 1/2 times its original size |
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What factors determine the nozzle pressure in abrasive blasting? |
c. Medium type and material thickness |
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To determine the BEST blast distance when abrasive blasting, you start at |
d. 18 inches and work inward |
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You mask components before abrasive blasting to |
a. prevent media intrusion |
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An advantage of using a mechanical arbor press rather than a hydraulic press for broaching is |
b. you can feel the cutting action and keep from overpressing the broach |
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What is the pressure range of a TYPICAL shop hydraulic press? |
b. 5 to 50 tons |
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When you press-fit a workpiece while using the hydraulic press, what do you do to keep from marring the surface? |
d. Place a soft metal shim between the work and ram |
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The ONLY way to accurately determine the amount of pressure exerted by a HYDRAULIC press is to |
b. watch the pressure gage |
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Which waterjet mixing tube material is good for rough cutting or when training a new operator? |
d. Low-cost composite carbide |
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What is the part accuracy if cutting material that is over one inch thick with a waterjet? |
d. +/-0.005 to 0.100 |
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When piercing with a waterjet, the distance between the tip and nozzle is NORMALLY between |
c. 0.030 and 0.060 inches |
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How often can you NORMALLY expect to change nozzle parts on a waterjet? |
a. Daily |
