NC Locksmith Exam Section 6 Questions
And Answers
160 Prep - ANS a standard door preparation which consists of a 2-1/8" cross-bore with a
2-3/8" backset, and a 1" edge bore with a mortise 1" wide and 2-3/4" high
161 Prep - ANS a standard door preparation which consists of a 2-1/8" cross-bore with a
2-3/4" backset, and a 1" edge bore with a mortise 1-1/8" wide and 2-1/4" high
Adjustable Collar - ANS a spring loaded cylinder which can fill a range of gaps between the
cylinder head and the door or escutcheon surface
Adjustable Mortise Cylinder - ANS Any mortise cylinder whose length can be adjusted for a
better fit in doors of varying thickness
Architectural Finish Code - ANS One of a series of specifications 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
Bored Lock - ANS A lock for a door prepared with one or more cross-bores and one or
more edge-bores
Cam - ANS 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
Case - ANS The housing or body of a lock
Chassis - ANS the part of a cylindrical lockset that contains the actuating mechanism and
has a means for mounting trim and a bolt
Cloverleaf cam - ANS a style of mortise lock cam with three lobes: a ball shaped longer
center, and angular projections on either side
Cross-bore - ANS a hole drilled into the face of a door where a bored or interconnected
lockset is to be installed
Cylindrical lockset - ANS a bored lockset whose latch or bolt locking mechanism is
contained in the portion installed through the cross-bore
And Answers
160 Prep - ANS a standard door preparation which consists of a 2-1/8" cross-bore with a
2-3/8" backset, and a 1" edge bore with a mortise 1" wide and 2-3/4" high
161 Prep - ANS a standard door preparation which consists of a 2-1/8" cross-bore with a
2-3/4" backset, and a 1" edge bore with a mortise 1-1/8" wide and 2-1/4" high
Adjustable Collar - ANS a spring loaded cylinder which can fill a range of gaps between the
cylinder head and the door or escutcheon surface
Adjustable Mortise Cylinder - ANS Any mortise cylinder whose length can be adjusted for a
better fit in doors of varying thickness
Architectural Finish Code - ANS One of a series of specifications 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
Bored Lock - ANS A lock for a door prepared with one or more cross-bores and one or
more edge-bores
Cam - ANS 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
Case - ANS The housing or body of a lock
Chassis - ANS the part of a cylindrical lockset that contains the actuating mechanism and
has a means for mounting trim and a bolt
Cloverleaf cam - ANS a style of mortise lock cam with three lobes: a ball shaped longer
center, and angular projections on either side
Cross-bore - ANS a hole drilled into the face of a door where a bored or interconnected
lockset is to be installed
Cylindrical lockset - ANS a bored lockset whose latch or bolt locking mechanism is
contained in the portion installed through the cross-bore
