North Carolina Practice Locksmith Exam
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Solved
n. 1. the number(s) which represent(s) the dimensions of the key
2. the actual cut(s) or combination of a
key CORRECT ANSWERS Bitting
n. a designation, unrelated to the bitting, assigned to a particular key combination for
future reference when additional keys or cylinders may be needed CORRECT
ANSWERS Blind Code
n. a hand held key bitting punch, often incorporating a trigger-like handle CORRECT
ANSWERS Clipper
n. 1. a designation assigned to a particular key combination for reference when
additional keys or cylinders may be needed. See also, "blind code", "direct code", and
"key symbol",
2. a standard for Life Safety, structural integrity, fire safety, etc., either incorporated into
the statutes of a given jurisdiction, or a model standard CORRECT ANSWERS Code
n. a key cut to a specific code rather than duplicated from a pattern key. it may or may
not conform to the lock manufacturer's specifications CORRECT ANSWERS Code Key
n. a code key which conforms to the lock manufacturer's specifications CORRECT
ANSWERS Code Original Key
n. the group of numbers which represent the bitting of a key and/or the tumblers of a
lock or cylinder CORRECT ANSWERS Combination
n. the bottom of a key cut CORRECT ANSWERS Cut Root
n. the shape of the bottom of a key cut. It may have a flat or radius of a specific
dimension, or be a perfect
"V CORRECT ANSWERS Cut Root Shape
n. a set of keys used to make a code original key on a key duplicating machine to a lock
manufacturer's given set of key bitting specifications. Each key is cut with the correct
spacing to one depth only in all bitting positions, with one key for each depth.
CORRECT ANSWERS Depth Key Set
n. a series of blind codes and bittings which are directly related to those of another
bitting list CORRECT ANSWERS Derived Series
,n. a designation assigned to a particular key which includes the actual combination of
the key CORRECT ANSWERS Direct Code
n. the dimension obtained by adding the root depth of a key cut to the length of its
corresponding bottom pin which establishes a perfect shear line. This will not
necessarily be the same as the actual plug diameter. CORRECT ANSWERS Effective
Plug Diameter
n. the maximum allowable difference between adjacent cut depths CORRECT
ANSWERS Maximum Adjacent Cut Specification
abb. maximum adjacent cut specification CORRECT ANSWERS "MACS"
n. the dimension from the bottom of a cut on a key to the bottom of the blade
CORRECT ANSWERS Root Depth
n. a location in a cylinder at which specific tumbler surfaces must be aligned, removing
obstruction(s) which prevented the plug from moving CORRECT ANSWERS Shear Line
n. the dimensions from the stop to the center of the first cut and/or to the centers of
successive cuts CORRECT ANSWERS Spacing
n. the part of a key from which all cuts are indexed and which determines how far the
key enters the keyway CORRECT ANSWERS Stop (of a key)
n. that portion of the cylinder shell which normally houses the pin chambers, especially
those of a key-inknob
cylinder or certain rim cylinders CORRECT ANSWERS Bible
n. 1. a tool used to cut the keyway into the cylinder plug 2. v. to cut the keyway into a
cylinder plug with a
broach CORRECT ANSWERS Broach
n. 1. a lock or cylinder component which transfers the rotational motion of a key or
cylinder plug to the
bolt works of a lock 2. the bolt of a cam lock CORRECT ANSWERS CAM
n. any cavity in a cylinder plug and/or shell which houses the tumblers CORRECT
ANSWERS Chamber
n. a keyway which has been enlarged to accept more than one key section, often key
sections of more
than one manufacturer CORRECT ANSWERS Composite Keyway
, n. 1. a flat tumbler which must be drawn into the cylinder plug by the proper key so that
none of its
extremities extends into the shell 2. a flat, usually rectangular tumbler with a gate which
must be aligned
with a sidebar by the proper key CORRECT ANSWERS Disc Tumbler
n. a set of top pins of different lengths. Usage is based on the height of the rest of the
pin stack, in order
to achieve a uniform pin stack height. See also "compensate drivers" CORRECT
ANSWERS Graduated Drivers
n. a usually uniform increase or decrease in the successive depths of a key cut which
must be matched
by a corresponding change in the tumblers CORRECT ANSWERS Increment
n. a pin tumbler cylinder with a diameter of 2.0", whose pins, springs, key, etc. may also
be proportionally
increased in size. It is frequently used in prison locks CORRECT ANSWERS Mogul
Cylinder
n. a threaded cylinder typically used in mortise locks of American manufacture
CORRECT ANSWERS Mortise Cylinder
n. a pin tumbler, usually a top pin, which resembles a mushroom. It is typically used to
increase pick
resistance CORRECT ANSWERS Mushroom Pin
adj. 1. of or pertaining to a keyway with one or more wards on each side projecting
beyond the vertical
center line of the keyway to hinder picking 2. of or pertaining to a key blank made to
enter such a keyway CORRECT ANSWERS Paracentric
n. a mortise cylinder of 3/4" diameter CORRECT ANSWERS Peanut Cylinder
n. the corresponding hole drilled into the cylinder shell and/or plug to accept the pin(s)
and spring CORRECT ANSWERS Pin Chamber
n. all the tumblers in a given pin chamber, see also"pin stack height" CORRECT
ANSWERS Pin Stack
n. the measurement of a pin stack, often expressed in units of the lock manufacturer's
increment or as an actual dimension CORRECT ANSWERS Pin Stack Height
n. the part of a cylinder which contains the keyway, with tumbler chambers usually
corresponding to those in the cylinder shell CORRECT ANSWERS Plug
Questions And Answers Latest Update |
Solved
n. 1. the number(s) which represent(s) the dimensions of the key
2. the actual cut(s) or combination of a
key CORRECT ANSWERS Bitting
n. a designation, unrelated to the bitting, assigned to a particular key combination for
future reference when additional keys or cylinders may be needed CORRECT
ANSWERS Blind Code
n. a hand held key bitting punch, often incorporating a trigger-like handle CORRECT
ANSWERS Clipper
n. 1. a designation assigned to a particular key combination for reference when
additional keys or cylinders may be needed. See also, "blind code", "direct code", and
"key symbol",
2. a standard for Life Safety, structural integrity, fire safety, etc., either incorporated into
the statutes of a given jurisdiction, or a model standard CORRECT ANSWERS Code
n. a key cut to a specific code rather than duplicated from a pattern key. it may or may
not conform to the lock manufacturer's specifications CORRECT ANSWERS Code Key
n. a code key which conforms to the lock manufacturer's specifications CORRECT
ANSWERS Code Original Key
n. the group of numbers which represent the bitting of a key and/or the tumblers of a
lock or cylinder CORRECT ANSWERS Combination
n. the bottom of a key cut CORRECT ANSWERS Cut Root
n. the shape of the bottom of a key cut. It may have a flat or radius of a specific
dimension, or be a perfect
"V CORRECT ANSWERS Cut Root Shape
n. a set of keys used to make a code original key on a key duplicating machine to a lock
manufacturer's given set of key bitting specifications. Each key is cut with the correct
spacing to one depth only in all bitting positions, with one key for each depth.
CORRECT ANSWERS Depth Key Set
n. a series of blind codes and bittings which are directly related to those of another
bitting list CORRECT ANSWERS Derived Series
,n. a designation assigned to a particular key which includes the actual combination of
the key CORRECT ANSWERS Direct Code
n. the dimension obtained by adding the root depth of a key cut to the length of its
corresponding bottom pin which establishes a perfect shear line. This will not
necessarily be the same as the actual plug diameter. CORRECT ANSWERS Effective
Plug Diameter
n. the maximum allowable difference between adjacent cut depths CORRECT
ANSWERS Maximum Adjacent Cut Specification
abb. maximum adjacent cut specification CORRECT ANSWERS "MACS"
n. the dimension from the bottom of a cut on a key to the bottom of the blade
CORRECT ANSWERS Root Depth
n. a location in a cylinder at which specific tumbler surfaces must be aligned, removing
obstruction(s) which prevented the plug from moving CORRECT ANSWERS Shear Line
n. the dimensions from the stop to the center of the first cut and/or to the centers of
successive cuts CORRECT ANSWERS Spacing
n. the part of a key from which all cuts are indexed and which determines how far the
key enters the keyway CORRECT ANSWERS Stop (of a key)
n. that portion of the cylinder shell which normally houses the pin chambers, especially
those of a key-inknob
cylinder or certain rim cylinders CORRECT ANSWERS Bible
n. 1. a tool used to cut the keyway into the cylinder plug 2. v. to cut the keyway into a
cylinder plug with a
broach CORRECT ANSWERS Broach
n. 1. a lock or cylinder component which transfers the rotational motion of a key or
cylinder plug to the
bolt works of a lock 2. the bolt of a cam lock CORRECT ANSWERS CAM
n. any cavity in a cylinder plug and/or shell which houses the tumblers CORRECT
ANSWERS Chamber
n. a keyway which has been enlarged to accept more than one key section, often key
sections of more
than one manufacturer CORRECT ANSWERS Composite Keyway
, n. 1. a flat tumbler which must be drawn into the cylinder plug by the proper key so that
none of its
extremities extends into the shell 2. a flat, usually rectangular tumbler with a gate which
must be aligned
with a sidebar by the proper key CORRECT ANSWERS Disc Tumbler
n. a set of top pins of different lengths. Usage is based on the height of the rest of the
pin stack, in order
to achieve a uniform pin stack height. See also "compensate drivers" CORRECT
ANSWERS Graduated Drivers
n. a usually uniform increase or decrease in the successive depths of a key cut which
must be matched
by a corresponding change in the tumblers CORRECT ANSWERS Increment
n. a pin tumbler cylinder with a diameter of 2.0", whose pins, springs, key, etc. may also
be proportionally
increased in size. It is frequently used in prison locks CORRECT ANSWERS Mogul
Cylinder
n. a threaded cylinder typically used in mortise locks of American manufacture
CORRECT ANSWERS Mortise Cylinder
n. a pin tumbler, usually a top pin, which resembles a mushroom. It is typically used to
increase pick
resistance CORRECT ANSWERS Mushroom Pin
adj. 1. of or pertaining to a keyway with one or more wards on each side projecting
beyond the vertical
center line of the keyway to hinder picking 2. of or pertaining to a key blank made to
enter such a keyway CORRECT ANSWERS Paracentric
n. a mortise cylinder of 3/4" diameter CORRECT ANSWERS Peanut Cylinder
n. the corresponding hole drilled into the cylinder shell and/or plug to accept the pin(s)
and spring CORRECT ANSWERS Pin Chamber
n. all the tumblers in a given pin chamber, see also"pin stack height" CORRECT
ANSWERS Pin Stack
n. the measurement of a pin stack, often expressed in units of the lock manufacturer's
increment or as an actual dimension CORRECT ANSWERS Pin Stack Height
n. the part of a cylinder which contains the keyway, with tumbler chambers usually
corresponding to those in the cylinder shell CORRECT ANSWERS Plug
