NC LOCKSMITH CORE EXAM 2026 TEST QUESTIONS
AND SOLUTIONS RATED A+
✔✔n. the condition of a door being secured such that manual operation of the latch or
bolt mechanism must occur before it may be opened - ✔✔Positive Latching
✔✔adj. pertaining to a lock with key operation from only one side - ✔✔Single Cylinder
✔✔n. a button or toggle mechanism which prevents operation of a knob, lever or
thumbpiece in a non-bored lock - ✔✔Stop Works
✔✔n. a one or two-piece stop works activator - ✔✔Stop Works Button(s)
✔✔n. a type of exit device actuator which typically does not pivot and retracts the bolt
with a minimum of pressure - ✔✔Touch Bar
✔✔n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/8"
backset, and a 1" edgebore with a mortise 1" wide and 2-1/4" high - ✔✔160 Prep
✔✔n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/4"
backset, and a 1" edgebore with a mortise 1-1/8" wide and 2-1/4" high - ✔✔161 Prep
✔✔n. a spring-loaded cylinder collar which can fill a range of gaps between the cylinder
head and the door or escutcheon surface - ✔✔Adjustable Collar
✔✔n. any mortise cylinder whose length can be adjusted for a better fit in doors of
varying thickness - ✔✔Adjustable Mortise Cylinder
✔✔n. one of a series of specification codes used to indicate the color and texture of a
metal end product that can be installed. Some finish specifications also note the base
metal characteristics and processes used to obtain the end product. - ✔✔Architectural
Finish Code
✔✔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. the housing or body of a lock - ✔✔Case
✔✔n. the part of a cylindrical lockset that contains the actuating mechanism and has a
means for mounting trim and a bolt - ✔✔Chassis
, ✔✔n. a style of mortise cylinder cam with three lobes: a ball shaped longer center, and
angular projections on either side - ✔✔Cloverleaf Cam
✔✔n. a hole drilled into the face of a door where a bored or interconnected lockset is to
be installed - ✔✔Cross Bore
✔✔adj. the direction and degree to which a door opens, as LH 90º, RH 180º, etc. -
✔✔Door Swing
✔✔n. a hole drilled into the edge of a door where a bored or interconnected lockset is to
be installed - ✔✔Edge-Bore
✔✔n. a material, coloring and/or texturing specification - ✔✔Finish
✔✔n. 1. a lock component, which redirects rotational motion from a spindle or shaft to
linear movement of a latch or bolt,
2. (key change), the part of a combination wheel that the change key engages to permit
the combination to be changed - ✔✔Hub
✔✔n. a screw used to fasten a slip-on knob to a mortise lock spindle, or a set screw
which maintains the position of a knob on a threaded mortise lock spindle - ✔✔Knob
Screw
✔✔adj. pertaining to an inward swinging door with hinges on the left side, using the
outside of the door as reference - ✔✔Left Hand (Man Door)
✔✔adj. pertaining to a left handed door which swings outward - ✔✔Left Hand Reverse
Bevel (Door)
✔✔1. v. to prepare by removing stock material from the edge of a door, drawer, frame
or opening to create a recess which allows the flush fit or insetting of relevant lock or
other hardware,
2. n. the cavity prepared by mortising,
3. adj. of or pertaining to a locking device designed to fit in a mortise preparation -
✔✔Mortise
✔✔n. door hardware whose hand cannot be changed in the field - ✔✔Non-Reversible
✔✔adj. of or pertaining to a condition where a mechanical part is misoriented and
cannot function correctly - ✔✔Out of Time
✔✔adj. pertaining to an inward swinging door with hinges on the right side, using the
outside of the door as reference - ✔✔Right Hand (Man Door)
AND SOLUTIONS RATED A+
✔✔n. the condition of a door being secured such that manual operation of the latch or
bolt mechanism must occur before it may be opened - ✔✔Positive Latching
✔✔adj. pertaining to a lock with key operation from only one side - ✔✔Single Cylinder
✔✔n. a button or toggle mechanism which prevents operation of a knob, lever or
thumbpiece in a non-bored lock - ✔✔Stop Works
✔✔n. a one or two-piece stop works activator - ✔✔Stop Works Button(s)
✔✔n. a type of exit device actuator which typically does not pivot and retracts the bolt
with a minimum of pressure - ✔✔Touch Bar
✔✔n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/8"
backset, and a 1" edgebore with a mortise 1" wide and 2-1/4" high - ✔✔160 Prep
✔✔n. a standard door preparation which consists of a 2-1/8" cross-bore with a 2-3/4"
backset, and a 1" edgebore with a mortise 1-1/8" wide and 2-1/4" high - ✔✔161 Prep
✔✔n. a spring-loaded cylinder collar which can fill a range of gaps between the cylinder
head and the door or escutcheon surface - ✔✔Adjustable Collar
✔✔n. any mortise cylinder whose length can be adjusted for a better fit in doors of
varying thickness - ✔✔Adjustable Mortise Cylinder
✔✔n. one of a series of specification codes used to indicate the color and texture of a
metal end product that can be installed. Some finish specifications also note the base
metal characteristics and processes used to obtain the end product. - ✔✔Architectural
Finish Code
✔✔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. the housing or body of a lock - ✔✔Case
✔✔n. the part of a cylindrical lockset that contains the actuating mechanism and has a
means for mounting trim and a bolt - ✔✔Chassis
, ✔✔n. a style of mortise cylinder cam with three lobes: a ball shaped longer center, and
angular projections on either side - ✔✔Cloverleaf Cam
✔✔n. a hole drilled into the face of a door where a bored or interconnected lockset is to
be installed - ✔✔Cross Bore
✔✔adj. the direction and degree to which a door opens, as LH 90º, RH 180º, etc. -
✔✔Door Swing
✔✔n. a hole drilled into the edge of a door where a bored or interconnected lockset is to
be installed - ✔✔Edge-Bore
✔✔n. a material, coloring and/or texturing specification - ✔✔Finish
✔✔n. 1. a lock component, which redirects rotational motion from a spindle or shaft to
linear movement of a latch or bolt,
2. (key change), the part of a combination wheel that the change key engages to permit
the combination to be changed - ✔✔Hub
✔✔n. a screw used to fasten a slip-on knob to a mortise lock spindle, or a set screw
which maintains the position of a knob on a threaded mortise lock spindle - ✔✔Knob
Screw
✔✔adj. pertaining to an inward swinging door with hinges on the left side, using the
outside of the door as reference - ✔✔Left Hand (Man Door)
✔✔adj. pertaining to a left handed door which swings outward - ✔✔Left Hand Reverse
Bevel (Door)
✔✔1. v. to prepare by removing stock material from the edge of a door, drawer, frame
or opening to create a recess which allows the flush fit or insetting of relevant lock or
other hardware,
2. n. the cavity prepared by mortising,
3. adj. of or pertaining to a locking device designed to fit in a mortise preparation -
✔✔Mortise
✔✔n. door hardware whose hand cannot be changed in the field - ✔✔Non-Reversible
✔✔adj. of or pertaining to a condition where a mechanical part is misoriented and
cannot function correctly - ✔✔Out of Time
✔✔adj. pertaining to an inward swinging door with hinges on the right side, using the
outside of the door as reference - ✔✔Right Hand (Man Door)
