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
thread class that would be used when close tolerances are required is ____.
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2.
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The
quality of some fasteners can be determined by the ____ on the head of a bolt or
screw. a. | number of
grooves cut | c. | length of the
lines | b. | number of sides | d. | grade markings | | | | |
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3.
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The
type of bolt that is threaded over its entire length is called a ____. a. | machine
bolt | c. | cap
bolt | b. | stud
bolt | d. | socket head
bolt | | | | |
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4.
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The
purpose of a jam nut is to ____. a. | hold a piece of material
stationary | c. | stop rotation of
a machine quickly for safety reasons | b. | lock a standard nut in place | d. | compress a lock washer in place | | | | |
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5.
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The
type of nut that is used to prevent contact with sharp edges of threads on a fastener is the ____
nut. a. | castellated | c. | self-locking | b. | jam | d. | acorn | | | | |
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6.
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Washers are used to ___. a. | distribute the load over a large
area | c. | anchor materials
that expand due to temperature changes | b. | attach an item to a hollow
surface | d. | allow the bolts
to expand with temperature change | | | | |
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7.
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torque is normally expressed in ____. a. | pounds per
square inch (psi) | c. | foot pounds (ft
lbs) | b. | gallons per
minute (GPM) | d. | cubic feet per
minute (cpm) | | | | |
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8.
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The
fastener that is used to keep a gear of pulley from rotation on a shaft is the ____. a. | key | c. | throw
bolt | b. | retaining
ring | d. | safety
wire | | | | |
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9.
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What
type of fasteners are commonly used as lifting devices? a. | Toggle
bolts | c. | J-bolts | b. | Anchor bolts | d. | Eye bolts | | | | |
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10.
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Wedge
and sleeve anchors are classified as ____ anchors. a. | bolt | c. | one-step | b. | hollow-wall | d. | screw | | | | |
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Matching
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a. | American Society
fro Testing and Materials (ASTM) International | i. | Thread identification | b. | Clearance | j. | Thread
standards | c. | Foot-pound | k. | Tolerance | d. | Inch-pound | l. | Torque | e. | Key | m. | United National Course (UNC) thread | f. | Keyway | n. | United National
Extra Fine (UNEF) thread | g. | Nominal Size | o. | United National Fine (UNF) thread | h. | Thread
class | | | | |
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11.
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The
turning force applied to a fastener is____.
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12.
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The
space between a thread of a bolt and its nut is called ____.
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13.
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The
amount of difference allowed from a standard is called ____.
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14.
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The
normal method for measuring torque is ____.
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15.
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The
method of measuring the amount of torque that is applied to small bolts, nuts, and screws is
____.
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16.
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A(an)_____ is a machined slot in a shaft and on parts such as gears and pulleys that
accepts a key.
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17.
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An
approximation of the diameter of a screw is known as the screw’s ____.
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18.
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The
tolerance that the threads provide between a bolt and a nut determine the ____.
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19.
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Fasteners with ____ thread are used when rapid assembly or disassembly of parts is
required.
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20.
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The
____ thread is used on thin-walled tubes, nuts, ferrules, and couplings.
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21.
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The
____ thread is used in fasteners when a tighter fit is desired.
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22.
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The
____ consists of standard symbols that are used to identify threads.
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23.
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A(an)
____ fits into a keyway and prevents parts such as gears or pulleys from rotating on a
shaft.
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24.
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____
are established standards for machining threads.
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25.
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The
____ publishes specifications and standards relating to fasteners.
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