North Carolina Practice Locksmith Exam Questions And Answers With Verified Study Solutions

North Carolina Practice Locksmith Exam Questions And Answers With Verified Study Solutions 1. the number(s) which represent(s) the dimensions of the key 2. the actual cut(s) or combination of a key - ANS Bitting . a designation, unrelated to the bitting, assigned to a particular key combination for future reference when additional keys or cylinders may be needed - ANS Blind Code n. a hand held key bitting punch, often incorporating a trigger-like handle - ANS Clipper . 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 - ANS 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 - ANS Code Key n. a code key which conforms to the lock manufacturer's specifications - ANS Code Original Key n. the group of numbers which represent the bitting of a key and/or the tumblers of a lock or cylinder - ANS Combination n. the bottom of a key cut - ANS 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 - ANS 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. - ANS Depth Key Set n. a series of blind codes and bittings which are directly related to those of another bitting list - ANS Derived Series n. a designation assigned to a particular key which includes the actual combination of the key - ANS 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. - ANS Effective Plug Diameter n. the maximum allowable difference between adjacent cut depths - ANS Maximum Adjacent Cut Specification abb. maximum adjacent cut specification - ANS "MACS" n. the dimension from the bottom of a cut on a key to the bottom of the blade - ANS 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 - ANS Shear Line n. the dimensions from the stop to the center of the first cut and/or to the centers of successive cuts - ANS Spacing n. the part of a key from which all cuts are indexed and which determines how far the key enters the keyway - ANS 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 - ANS 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 - ANS 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 - ANS CAM n. any cavity in a cylinder plug and/or shell which houses the tumblers - ANS Chamber n. a keyway which has been enlarged to accept more than one key section, often key sections of more than one manufacturer - ANS 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 - ANS 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" - ANS 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 - ANS 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 - ANS Mogul Cylinder n. a threaded cylinder typically used in mortise locks of American manufacture - ANS Mortise Cylinder n. a pin tumbler, usually a top pin, which resembles a mushroom. It is typically used to increase pick resistance - ANS 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 - ANS Paracentric n. a mortise cylinder of 3/4" diameter - ANS Peanut Cylinder n. the corresponding hole drilled into the cylinder shell and/or plug to accept the pin(s) and spring - ANS Pin Chamber n. all the tumblers in a given pin chamber, see also"pin stack height" - ANS Pin Stack n. the measurement of a pin stack, often expressed in units of the lock manufacturer's increment or as an actual dimension - ANS Pin Stack Height n. the part of a cylinder which contains the keyway, with tumbler chambers usually corresponding to those in the cylinder shell - ANS Plug n. a tool used to allow removal of the cylinder plug while retaining the top pins, springs, and/or other components within the shell - ANS Plug Follower n. a holding fixture which assists in the loading of tumblers into a cylinder plug - ANS Plug Holder n. a cylinder with a usually uniform cross section, which slides into place and usually is held by a mounting screw. It is typically used in mortise locks of non-U.S. manufacture. - ANS Profile Cylinder n. a component which is clipped, staked, or driven in place to maintain the working relationship of other components - ANS Retainer n. a cylinder typically used with surface applied locks and attached with a back plate and machine screws. It has a tailpiece to actuate the lock mechanism - ANS Rim Cylinder n. a thin piece of metal which is usually crimped or spun onto the front of a cylinder. It determines the cylinder's finish and may also serve as the plug retainer. - ANS Scalp n. a location in a cylinder at which specific tumbler surfaces must be aligned, removing obstruction(s) which prevented the plug from moving - ANS Shear Line n. the part of the cylinder which surrounds the plug and which usually contains tumbler chambers corresponding to those in the plug - ANS Shell 1. n. a thin piece of material used to unlock the cylinder plug from the shell by separating the pin tumblers at the shear line, one at a time 2. v. to unlock a cylinder plug from its shell by using a shim - ANS Shim n. a pin with a uniform smaller diameter except at its ends. Typically a top pin used to augment pick resistance but also observed as bottom and master pins. - ANS Spool Pin n. an actuator attached to the rear of the cylinder, parallel to the plug, typically used on rim, key-in-knob or special application cylinders - ANS Tail Piece n. the deviation allowed from a given dimension - ANS Tolerance n. a usually stationary obstruction in a lock or cylinder which prevents the entry and/or operation of an incorrect key - ANS Ward n. the key section which enters all keyways of a multiplex key system - ANS All Section Key Blank n. a machine capable of cutting keys with manual operations limited to loading and unloading key blanks. - ANS Automatic Key Machine n. a key whose cuts are in the form of wavy grooves milled into the flat sides of the key blade. The grooves usually run the entire length of the blade. - ANS Bell Type Key n. 1. the part of the key which serves as the blade, usually for use in a warded or lever tumbler lock 2. v. to cut a key - ANS Bit n. the portion of a key which may contain the cuts and/or millings - ANS Blade adj. uncut, see also "key blank" - ANS Blank n. the portion of the blade opposite the cut edge of a single bitted key - ANS Bottom of the Blade n. the portion of the key which serves as a grip or handle - ANS Bow n. a type of stop located near the key bow - ANS Bow Stop n. 1. the movable assembly of a key machine which supports the key vise(s), 2. a changeable part of a clipper that holds the key blank - ANS Carriage n. a blank designed to enter two or more simplex keyways - ANS Composite Blank n. a keyway which has been enlarged to accept more than one key section, often key sections of more than one manufacturer - ANS Composite Keyway n. any material manufactured to the proper size and configuration which allows entry into the keyway of a specific locking device and may then be bitted to become an operating key for the device - ANS Key Blank n. the exact cross sectional configuration of a key blade as viewed from the bow toward the tip - ANS Key Section n. 1. the opening in a lock or cylinder which is shaped to accept key bit or blade of a proper configuration 2. the exact cross sectional configuration of a key way as viewed from the front. It is not necessarily the same as the key section. - ANS Key Way n. a ward which prevents entry of an incorrect key into a cylinder or lock - ANS Key Way Ward n. a key section which enters more than one, but not all keyways in a multiplex key system - ANS Multi Section Key Blank n. any key blank which is part of a multiplex key system - ANS Multiplex Key Blank n. 1. a series of different key sections which may be used to expand a master key system by repeating bittings on additional key sections. The keys of one key section will not enter the keyway of another key section. This type of system always includes another key section which will enter more than one, or all of the keyways. 2. a keying system which uses such keyways and key sections - ANS Multiplex Key System n. 1. the portion of a bit key between the shoulder and the bit(s) 2. the portion of a cylinder key between the shoulder and the bow - ANS Neck (of key) n. the bow of a key which is unidentifiable to a particular lock manufacturer - ANS Neuter Bow n. a brass alloy containing nickel used in making some key blanks and tumblers - ANS Nickel Silver n. a key blank supplied by the lock manufacturer to fit that manufacturer's specific product - ANS Original Key Blank n. the portion of a bit key between the tip and the shoulder, to which the bit(s) is attached - ANS Post (of key) n. 1. a part of a lock that serves as a guide for a drilled key and prevents entry of a non-drilled key, 2. the center bearing surface of a mechanical combination lock that the wheels rotate on - ANS Post (of a lock) adj. of or pertaining to a keyway and corresponding key blank whose sale and/or distribution is limited by the lock manufacturer in order to reduce unauthorized key proliferation - ANS Restricted n. a keyway shape that is a mirror image of another - ANS Reverse Keyway n. a machine capable of duplicating keys with limited manual operations - ANS Semi Auto Key Machine n. a projection from a key that can be any key stop other than a tip stop, see also "bow stop". Some shoulders on keys serve no functional purpose. - ANS Shoulder n. a key machine cutter designed to make cuts with a rectangular shape - ANS Slotter n. the part of a key from which all cuts are indexed and which determines how far the key enters the keyway - ANS Stop (of a key) n. the part of a key machine that aligns a key blank, a pattern key, or both, so that the blank may be cut correctly - ANS Stop Gauge n. the cut made into a key to bypass a throat ward - ANS Throat Cut The portion of a key which enters the keyway first. - ANS Tip Cut n. the bitted edge of a single bitted key - ANS Top of Blade n. a key with a tubular blade. The key cuts are made into the end of the blade, around its circumference. - ANS Tubular Key n. a device, usually connected to a cylinder, which, when activated, may cause a lock mechanism to operate - ANS Actuator n. any lock installed in addition to the primary lockset - ANS Auxiliary Lock n. a lock for a door prepared with one or more cross-bores and one or more edge-bores - ANS Bored Lock n. a lock picking key with uniform steeples between cuts that is forced further into the lock via impact - ANS Bump Key n. a device that neutralizes the security of a locking device, or its application hardware, often taking advantage of a design weakness - ANS By-Pass Tool 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 - ANS Cam n. a complete operating unit which usually consists of the plug shell, tumblers, springs, plug retainer, a cam/tailpiece or other actuating device, and all other necessary operating parts - ANS Cylinder n. a bored lockset whose latch or bolt locking mechanism is contained in the portion installed through the cross-bore - ANS Cylindrical Lockset n. a bolt, which requires a deliberate action to extend, and which resists end pressure in the unlocking direction when fully extended - ANS DeadBolt n. a lock which incorporates a deadbolt - ANS Deadlock adj. pertaining to any feature which, when fully engaged, resists attempts to move the latch or bolt in the unlocking direction through direct pressure - ANS DeadLocking n. a latchbolt with a deadlocking mechanism - ANS DeadLocking Latch n. a bumper installed in the jamb stop to quiet the closing of a door - ANS Door Silencer adj. pertaining to a lock with two keyed cylinders - ANS Double Cylinder n. a deadbolt lock whose bolt may be operated by a key from either side - ANS Double Cylinder DeadLock adj. of or pertaining to a lock with one or more bolts with different functions, typically a latch and a deadbolt - ANS Double Locking n. a surface mounted trim which enhances the appearance and/or security of a lock installation - ANS Escutcheon n. a pick with a tip that curves upward by 45º or more toward perpendicular to the blade - ANS Hook Pick n. 1. the mark made by a tumbler on its key cut 2. v. to fit a key by the impression technique - ANS Impression n. a means of fitting a key directly to a locked cylinder by manipulating a blank in the keyway and cutting the blank where the tumblers have made marks - ANS Impression Technique n. the vertical components of a door frame - ANS Jamb n. a tool designed for use to remove a broken or stuck key from a lock - ANS Key Extractor n. any lockset with a key operated cylinder in one or more knobs - ANS Key-n-Knob Lockset n. 1. the opening in a lock or cylinder which is shaped to accept key bit or blade of a proper configuration 2. the exact cross sectional configuration of a keyway as viewed from the front. It is not necessarily the same as the key section. - ANS Keyway Key-n-Knob - ANS KIK Key-n-Lever - ANS KIL 1. n. a mechanical or magnetic door fastener which can automatically keep a door, gate, etc., closed, 2. v. engagement of a latch when a door, gate, etc. is pushed or pulled closed - ANS Latch n. a spring actuated bolt, normally with one or more beveled surfaces, which, when aligned with the strike, engages it automatically - ANS Latch Bolt n. a cam or tailpiece designed to remain stationary while the cylinder plug is partially rotated and/or vice versa - ANS Lazy Cam/TailPiece n. a locking device, complete with trim, mounting hardware and strike - ANS LockSet n. a lockset the case of which is designed to fit in a mortise in the edge of a door or drawer - ANS Mortise LockSet n. 1. a tool or instrument, other than the specifically designed key, made for the purpose of manipulating tumblers in a lock or cylinder into the locked or unlocked position through the keyway, without obvious damage. 2. v. to manipulate tumblers in a keyed lock mechanism through the keyway, without obvious damage, by means other than the specifically designed key - ANS Pick n. a machine designed to impact all of the bottom pins of a pin tumbler lock at exactly the same time and thereby bounce the top pins beyond the shear line - ANS Pick Gun n. a type of manipulation key, cut or modified to operate a lock or cylinder - ANS Pick Key n. the part of a cylinder which contains the keyway, with tumbler chambers usually corresponding to those in the cylinder shell - ANS Plug n. the cylinder component which secures the plug in the shell - ANS Plug Retainer n. a tool which rotates a picked cylinder plug so quickly in the desired direction that it cannot lock during its rotation - ANS Plug Spinner v. to decode a lock combination visually without disassembly of the lock or cylinder - ANS Read n. the part of the cylinder which surrounds the plug and which usually contains tumbler chambers corresponding to those in the plug - ANS Shell n. a latch operated under spring pressure, having no deadlatching feature - ANS Spring Latch n. a bolt receptacle typically mounted in the door jamb or the floor - ANS Strike n. a tool used to apply torque to a lock bolt or cylinder plug while attempting picking - ANS Tension Wrench n. a actuator which can be turned by thumb and forefinger - ANS Thumb Turn n. exposed components of a lockset or latchset, which allow operation, enhance appearance or provide protection - ANS Trim n. a US federal law dealing with minimum standards of building accessibility, as well as other issues concerning individuals with disabilities - ANS Americans With Disabilities Act (ADA) abb. American National Standards Institute - ANS ANSI Architectural Hardware Consultant (as certified by Door Hardware Institute) - ANS ACH n. that person, usually within a municipality, charged with the application and interpretation of local life safety codes - ANS Authority Having Jurisdiction (AHJ) n. having to do with the absence of restrictions to access by the handicapped - ANS Barrier Free n. the model building code developed and published by BOCA - ANS BOCA National Building Code Abrev n. a document, granted by the authority having jurisdiction, permitting occupancy or use - ANS Certificate of Occupancy adj. pertaining to any feature which, when fully engaged, resists attempts to move the latch or bolt in the unlocking direction through direct pressure - ANS DeadLocking n. a lock designed for securing a cell or other area in a prison or jail - ANS Detention Lock 1. v. to place an exit device in the holdback mode 2. n. in marine applications the latch for a hatch - ANS Dog n. a key operated cylinder used to dog an exit device - ANS Dogging Cylinder n. in an exit device, a mechanism used to temporarily disable the latch from locking - ANS Dogging Device n. a key or tool used to dog an exit device - ANS Dogging Key n. a deadbolt lock whose bolt may be operated by a key from either side - ANS Double Cylinder DeadLock adj. pertaining to any type of non-active device applied for aesthetic purposes - ANS Dummy n. a lock which is controlled electrically - ANS Electrified LockSet n. a door lock/latch mechanism which releases in the direction of exit travel via a bar or panel extending across the major width of the door - ANS Exit Device adj.: a feature of a security device designed to release, for safety purposes, during a power loss - ANS Fail-Safe n. a door constructed to provide a specific degree of fire protection - ANS Fire Door n. exit devices, which may legally be installed, on fire doors. Distinguished from other exit devices because it: 1. is labeled for both fire and panic and; 2. has no means of locking the latch in a retracted position - ANS Fire Exit Hardware adj. pertaining to hardware which is manufactured only for application on doors with a specific orientation - ANS Handed n. a listing of the door hardware used on a particular job it includes the types of hardware, manufacturers, locations, finishes, and sizes. It should include a keying schedule specifying how each locking device is to be keyed. - ANS Hardware Schedule n. a lockset whose trim provides a means of simultaneous retraction of two or more bolts which may also be operated independently - ANS Interconnected LockSet 1. n. a mechanical or magnetic door fastener which can automatically keep a door, gate, etc., closed, 2. v. engagement of a latch when a door, gate, etc. is pushed or pulled closed - ANS Latch 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 - ANS Mortise 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 - ANS Positive Latching adj. pertaining to a lock with key operation from only one side - ANS Single Cylinder n. a button or toggle mechanism which prevents operation of a knob, lever or thumbpiece in a non-bored lock - ANS Stop Works n. a one or two-piece stop works activator - ANS 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 - ANS 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 - ANS 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 - ANS 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 - ANS Adjustable Collar n. any mortise cylinder whose length can be adjusted for a better fit in doors of varying thickness - ANS 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. - ANS 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 - ANS Cam n. the housing or body of a lock - ANS Case n. the part of a cylindrical lockset that contains the actuating mechanism and has a means for mounting trim and a bolt - ANS Chassis n. a style of mortise cylinder cam with three lobes: a ball shaped longer center, and angular projections on either side - ANS Cloverleaf Cam n. a hole drilled into the face of a door where a bored or interconnected lockset is to be installed - ANS Cross Bore adj. the direction and degree to which a door opens, as LH 90º, RH 180º, etc. - ANS Door Swing n. a hole drilled into the edge of a door where a bored or interconnected lockset is to be installed - ANS Edge-Bore n. a material, coloring and/or texturing specification - ANS 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 - ANS 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 - ANS Knob Screw adj. pertaining to an inward swinging door with hinges on the left side, using the outside of the door as reference - ANS Left Hand (Man Door) adj. pertaining to a left handed door which swings outward - ANS 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 - ANS Mortise n. door hardware whose hand cannot be changed in the field - ANS Non-Reversible adj. of or pertaining to a condition where a mechanical part is misoriented and cannot function correctly - ANS Out of Time adj. pertaining to an inward swinging door with hinges on the right side, using the outside of the door as reference - ANS Right Hand (Man Door) adj. pertaining to a right handed door which swings outward - ANS Right Hand Reverse Bevel (Door) n. a usually circular escutcheon - ANS Rose n. a tool for installing, removing or adjusting a threaded part. The tool is designed to engage one or more holes or depressions which are peripheral or not on-center to the part axis. - ANS Spanner Wrench n. a component which transfers rotary motion from outside a lock or latch case to an inner mechanism - ANS Spindle n. a two-piece hub which can allow motion from one side of a swivel spindle while preventing it from the other side - ANS Split Hub n. a multi-piece spindle which allows a knob or lever to be installed on only one side of a door - ANS Split Spindle n. normally a two-piece spindle assembly whose two halves are designed to turn independently - ANS Swivel Spindle n. a generally flat, projecting latch actuator found above a grip handle and depressed by the thumb - ANS Thumb Piece n. the engagement or positioning of an assembly of internal parts so as to produce the desired sequence of engagement during operation - ANS Timing n. a listing of all the key combinations used within a system. The combinations are usually arranged in order of the blind code, direct code, and/or key symbol. - ANS Bitting List n. the one pin master key for all combinations listed as a block in the standard progression format - ANS Block Master n. the additional element of a pin stack required to allow operation at different shear lines in a cylinder - ANS Build-Up Pin n. 1. a key which operates only one cylinder or one group of keyed alike cylinders in a keying system, 2. any device that is used to mechanically or electronically allow resetting of certain key or combination locks, see also "reset key" #1 - ANS Change Key n. a master key for all combinations obtained by progressing five bitting positions - ANS Five Pin Master Key