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NORTH CAROLINA PRACTICE
LOCKSMITH EXAM QUESTIONS AND
ANSWERS 2025
n. 1. the number(s) which represent(s) the dimensions of the
key
2. the actual cut(s) or combination of a
key - correct answer- 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 answer- Blind Code
n. a hand held key bitting punch, often incorporating a trigger-
like handle - correct answer- 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 answer- Code
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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 answer- Code Key
n. a code key which conforms to the lock manufacturer's
specifications - correct answer- 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 answer-
Combination
n. the bottom of a key cut - correct answer- 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 answer- 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 answer- Depth Key Set
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n. a series of blind codes and bittings which are directly related
to those of another bitting list - correct answer- Derived Series
n. a designation assigned to a particular key which includes the
actual combination of the key - correct answer- 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 answer- Effective Plug
Diameter
n. the maximum allowable difference between adjacent cut
depths - correct answer- Maximum Adjacent Cut Specification
abb. maximum adjacent cut specification - correct answer-
"MACS"
n. the dimension from the bottom of a cut on a key to the
bottom of the blade - correct answer- Root Depth
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n. a location in a cylinder at which specific tumbler surfaces
must be aligned, removing obstruction(s) which prevented the
plug from moving - correct answer- Shear Line
n. the dimensions from the stop to the center of the first cut
and/or to the centers of successive cuts - correct answer-
Spacing
n. the part of a key from which all cuts are indexed and which
determines how far the key enters the keyway - correct answer-
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 answer- 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 answer- Broach
NORTH CAROLINA PRACTICE
LOCKSMITH EXAM QUESTIONS AND
ANSWERS 2025
n. 1. the number(s) which represent(s) the dimensions of the
key
2. the actual cut(s) or combination of a
key - correct answer- 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 answer- Blind Code
n. a hand held key bitting punch, often incorporating a trigger-
like handle - correct answer- 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 answer- Code
,2 | Page
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 answer- Code Key
n. a code key which conforms to the lock manufacturer's
specifications - correct answer- 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 answer-
Combination
n. the bottom of a key cut - correct answer- 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 answer- 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 answer- Depth Key Set
,3 | Page
n. a series of blind codes and bittings which are directly related
to those of another bitting list - correct answer- Derived Series
n. a designation assigned to a particular key which includes the
actual combination of the key - correct answer- 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 answer- Effective Plug
Diameter
n. the maximum allowable difference between adjacent cut
depths - correct answer- Maximum Adjacent Cut Specification
abb. maximum adjacent cut specification - correct answer-
"MACS"
n. the dimension from the bottom of a cut on a key to the
bottom of the blade - correct answer- Root Depth
, 4 | Page
n. a location in a cylinder at which specific tumbler surfaces
must be aligned, removing obstruction(s) which prevented the
plug from moving - correct answer- Shear Line
n. the dimensions from the stop to the center of the first cut
and/or to the centers of successive cuts - correct answer-
Spacing
n. the part of a key from which all cuts are indexed and which
determines how far the key enters the keyway - correct answer-
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 answer- 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 answer- Broach
