North Carolina Practice Locksmith Exam | 300 Questions
with 100% Correct Answers
n. 1. the number(s) which represent(s) the dimensions of the key
2. the actual cut(s) or combination of a
key - - 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 - - Blind Code
n. a hand held key bitting punch, often incorporating a trigger-like handle - - 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 - - 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 - - Code Key
n. a code key which conforms to the lock manufacturer's specifications - - Code
Original Key
n. the group of numbers which represent the bitting of a key and/or the tumblers of a lock or
cylinder - - Combination
n. the bottom of a key cut - - 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 - - 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
, North Carolina Practice Locksmith Exam | 300 Questions
with 100% Correct Answers
spacing to one depth only in all bitting positions, with one key for each depth. - -
Depth Key Set
n. a series of blind codes and bittings which are directly related to those of another bitting
list - - Derived Series
n. a designation assigned to a particular key which includes the actual combination of the
key - - 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. - - Effective Plug Diameter
n. the maximum allowable difference between adjacent cut depths - - Maximum
Adjacent Cut Specification
abb. maximum adjacent cut specification - - "MACS"
n. the dimension from the bottom of a cut on a key to the bottom of the blade - - 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 - - Shear Line
n. the dimensions from the stop to the center of the first cut and/or to the centers of
successive cuts - - Spacing
n. the part of a key from which all cuts are indexed and which determines how far the key
enters the keyway - - 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 - - Bible
, North Carolina Practice Locksmith Exam | 300 Questions
with 100% Correct Answers
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 - - 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 - - CAM
n. any cavity in a cylinder plug and/or shell which houses the tumblers - - Chamber
n. a keyway which has been enlarged to accept more than one key section, often key
sections of more
than one manufacturer - - 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 - - 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" - - 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 - - Increment
with 100% Correct Answers
n. 1. the number(s) which represent(s) the dimensions of the key
2. the actual cut(s) or combination of a
key - - 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 - - Blind Code
n. a hand held key bitting punch, often incorporating a trigger-like handle - - 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 - - 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 - - Code Key
n. a code key which conforms to the lock manufacturer's specifications - - Code
Original Key
n. the group of numbers which represent the bitting of a key and/or the tumblers of a lock or
cylinder - - Combination
n. the bottom of a key cut - - 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 - - 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
, North Carolina Practice Locksmith Exam | 300 Questions
with 100% Correct Answers
spacing to one depth only in all bitting positions, with one key for each depth. - -
Depth Key Set
n. a series of blind codes and bittings which are directly related to those of another bitting
list - - Derived Series
n. a designation assigned to a particular key which includes the actual combination of the
key - - 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. - - Effective Plug Diameter
n. the maximum allowable difference between adjacent cut depths - - Maximum
Adjacent Cut Specification
abb. maximum adjacent cut specification - - "MACS"
n. the dimension from the bottom of a cut on a key to the bottom of the blade - - 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 - - Shear Line
n. the dimensions from the stop to the center of the first cut and/or to the centers of
successive cuts - - Spacing
n. the part of a key from which all cuts are indexed and which determines how far the key
enters the keyway - - 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 - - Bible
, North Carolina Practice Locksmith Exam | 300 Questions
with 100% Correct Answers
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 - - 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 - - CAM
n. any cavity in a cylinder plug and/or shell which houses the tumblers - - Chamber
n. a keyway which has been enlarged to accept more than one key section, often key
sections of more
than one manufacturer - - 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 - - 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" - - 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 - - Increment
