Locksmith Ncl Quiz
Basic locksmith knowledge test
- 1.
What is the bitting of a key?
- A.
Part of the key shoulder
- B.
Part of key that grabs the keyway
- C.
The actual cuts or combination of key.
- D.
Bottom of key cut
Correct Answer
C. The actual cuts or combination of key. -
- 2.
A designation, unrelated to bitting, assigned to particular key combination for future reference is called:
- A.
Private code
- B.
Blind code
- C.
Code key
- D.
Composite keyway
Correct Answer
B. Blind code -
- 3.
A stationary obstruction in a lock or cylinder that prevents entry by incorrect key is called a ward.
- A.
True
- B.
False
Correct Answer
A. True -
- 4.
A actuator attached to the rear of cylinder, parallel to plug is called a what?
- A.
Carriage
- B.
Blade
- C.
Post
- D.
Tailpiece
Correct Answer
D. Tailpiece -
- 5.
Particular Key combination for reference when additional keys or cylinders are needed, is called a:
- A.
Code
- B.
Blind code
- C.
Combination
- D.
Code key
Correct Answer
A. Code -
- 6.
What is a key cut to a specific key code rather than a duplicate from a pattern called?
- A.
Depth key
- B.
Blind code
- C.
Code key
- D.
Change key
Correct Answer
C. Code key -
- 7.
A code original key is a
- A.
Key cut by a locksmith that is different from existing key
- B.
Duplicated key
- C.
Group of numbers that represent the biting of a key or tumblers of lock & cylinder.
- D.
Code key that conforms to manufacturers Specs.
Correct Answer
D. Code key that conforms to manufacturers Specs. -
- 8.
A Group of numbers that represent the biting of a key or tumblers of lock & cylinder.
- A.
Blind code
- B.
Combination
- C.
Ignition code
- D.
Direct code
Correct Answer
B. Combination -
- 9.
A cut root is the
- A.
Bottom of key cut
- B.
Sum of adjacent cuts
- C.
MAC's
- D.
Derived series
Correct Answer
A. Bottom of key cut -
- 10.
Set of keys cut to the same depth on each key. With correct spacing from manufactures specs. One key for each depth, is called
- A.
Bump key set
- B.
Depth key set
- C.
Graduated drivers set
- D.
Bypass keys
Correct Answer
B. Depth key set -
- 11.
A series of Blind codes and biting related to those of another biting list is called
- A.
Derived series
- B.
Direct codes
- C.
Specific blind codes
- D.
Composite code
Correct Answer
A. Derived series -
- 12.
A Key with actual combination of key is called:
- A.
MAC's code
- B.
Manufacturer code
- C.
Code original key
- D.
Direct code
Correct Answer
D. Direct code -
- 13.
The dimension from bottom of cut on a key to the bottom of blade, is called the root depth
- A.
True
- B.
False
Correct Answer
A. True -
- 14.
The portion of cylinder shell that houses the pin chambers for springs & top pins is the what?
- A.
Cylinder pin housing
- B.
Bible
- C.
Chamber
- D.
Cylinder housing
Correct Answer
B. Bible -
- 15.
The tool used to cut the keyway into cylinder plug is a
- A.
Drill bit
- B.
Match press
- C.
Broach
- D.
Mortise set
Correct Answer
C. Broach -
- 16.
The lock cylinder part that transfers the rotation of key or plug cylinder to bolt that works the lock.
- A.
Set piece
- B.
Cam
- C.
Latch bolt
- D.
Lock retainer
Correct Answer
B. Cam -
- 17.
the tailpiece holds the cylinder in place.
- A.
True
- B.
False
Correct Answer
B. False -
- 18.
Keyway that has been enlarged to accept more than one key section is called a:
- A.
Code series specific key-way
- B.
Composite key-way
- C.
Yale key-way
- D.
Mortise Key cylinder
Correct Answer
B. Composite key-way -
- 19.
Max allowed difference between adjacent cut depths is also known as:
- A.
MAP'S
- B.
Pats
- C.
VAT
- D.
MAC'S
Correct Answer
D. MAC'S -
- 20.
Dimension obtained by adding root depth of key to corresponding bottom pins which makes a perfect shear line is the:
- A.
Effective plug diameter
- B.
Shear line space
- C.
MAC'S
- D.
Spacing
Correct Answer
A. Effective plug diameter -
- 21.
SET OF TOP PINS OF DIFFERENT LENGTHS. Based on height & length of rest of pin stack, in order to achieve uniform stack height is called the
- A.
Graduated drivers
- B.
Pin stack height
- C.
Graduated spring tension
- D.
Sum of cylinder pin set
Correct Answer
A. Graduated drivers -
- 22.
What does Paracentric mean?
- A.
A keyway with one or more keys that can manipulate lock
- B.
To have more than one master key
- C.
A key that is able to fit more than one lock keyway in a blind series
- D.
A keyway with one or more wards on each side projecting beyond vertical center line of keyway
Correct Answer
D. A keyway with one or more wards on each side projecting beyond vertical center line of keyway -
- 23.
A component that is clipped, staked or driven in place to maintain working relationship with other parts.
- A.
Retainer
- B.
Tailpiece
- C.
Set pin
- D.
Rim cylinder
Correct Answer
A. Retainer -
- 24.
Thin piece of metal that is usually crimped or spun into the front of cylinder. It determines the finish of lock and can operate as a plug retainer.
- A.
Beauty ring
- B.
Face plate
- C.
Scalp
- D.
Trim
Correct Answer
C. Scalp -
- 25.
Location in a cylinder at which specific tumbler surfaces must be aligned that prevents plug from moving without proper key /pin alignment.
- A.
Center space
- B.
Shear line
- C.
Shim line
- D.
Ward
Correct Answer
B. Shear line -
- 26.
Stationary obstruction in a lock or cylinder that prevents entry by incorrect key is what?
- A.
Ward
- B.
Biting
- C.
Blade grooves
- D.
Width
Correct Answer
A. Ward -
- 27.
The part of key that may contain cuts/milling is the
- A.
Ward
- B.
Shoulder
- C.
Blade
- D.
Blank
Correct Answer
C. Blade -
- 28.
A blank designed to enter one or more simplex keyways is
- A.
A composite blank
- B.
High security blank
- C.
Composite keyway
- D.
Master key blank
Correct Answer
A. A composite blank -
- 29.
A Key section that enters more than one but not all keyways in a multiplex is a
- A.
Multiplex system
- B.
Composite keyway
- C.
Reverse keyway
- D.
Multi-section key blank
Correct Answer
D. Multi-section key blank -
- 30.
a series of different key sections that may be used to expand a master key system by repeating bitings and add'l key sections. The keys of one section will not enter the keyways of another section.. this type of system always includes another key section which will enter more than one or all of the keyways.
- A.
Master key system
- B.
Multiplex key system
- C.
Medico key system
- D.
Grand master key system
Correct Answer
B. Multiplex key system -
- 31.
The bow of a key that is unidentifiable to a particular lock manufacturer is called a
- A.
Blind bow
- B.
Neutral bow
- C.
Neuter bow
- D.
Bow
Correct Answer
C. Neuter bow -
- 32.
_________ is basically a bolt or bar mechanism that doesn't have a keyed cylinder, knob, or turn piece and can't be operated mechanically.
- A.
A electric lock
- B.
A LORI Lock
- C.
A Deadlatch
- D.
A Electrified Lock
Correct Answer
A. A electric lock -
- 33.
a modified mechanical lock that can be operated either mechanically or with electricity is a
- A.
Magnet lock
- B.
Electrified lock
- C.
Card reader lock
- D.
Keypad lock system
Correct Answer
B. Electrified lock -
- 34.
Who determines manufacturing standards?
- A.
ANSI 156
- B.
NLA
- C.
Government building code
- D.
ANSI
Correct Answer
D. ANSI -
- 35.
Escutcheon is a surface mounted trim which enhances the appearance and/or security of a lock installation
- A.
True
- B.
False
Correct Answer
A. True -
- 36.
Cylinder component that secures the plug in the shell is a
- A.
Plug retainer
- B.
Set screw set screw
- C.
Retainer housing
- D.
Cylinder catch
Correct Answer
A. Plug retainer -
- 37.
What is a biting list?
- A.
A list of codes used for the all key blanks
- B.
A list of master keys in a set system
- C.
A list of all key combinations used within a system in the order of blind codes, direct codes or key symbol
- D.
A list of bitings obtained by using all possible cuts within a system
Correct Answer
C. A list of all key combinations used within a system in the order of blind codes, direct codes or key symbol -
- 38.
GMK or grand master key is a key that,
- A.
Operates 2 or more separate groups of locks that are operated by different master keys
- B.
Operates 1 group of locks that operate 1 group
- C.
Operates more than 5 different levels of keying
- D.
Operates 3 groups within a master system
Correct Answer
A. Operates 2 or more separate groups of locks that are operated by different master keys -
- 39.
A grand master key systems has exactly how many levels
- A.
3
- B.
5
- C.
2
- D.
4
Correct Answer
A. 3 -
- 40.
What is a keying schedule?
- A.
A matrix display of all bitings within a system
- B.
A schedule of who keys what locks within a system
- C.
When the keys are to work and their time off.
- D.
Detailed specification of the keying system listing how all cylinders are to be keyed as well as quantities, marking etc, etc.
Correct Answer
D. Detailed specification of the keying system listing how all cylinders are to be keyed as well as quantities, marking etc, etc. -
- 41.
Master key basics, our TMK is 40596, our change key is 62178, what would be the bottom pins and the master pins used?
- A.
Bottom pins 62178, master pins 40176
- B.
Top pins 40596, master pins 24224
- C.
Top pins 40176, bottom pins 22422
- D.
Bottom pins 40176, master pins 22422
Correct Answer
D. Bottom pins 40176, master pins 22422 -
- 42.
A cylinder mechanism which requires that the plug be rotated before the cylinder can be removed is call a:
- A.
Retainer stop
- B.
Key pull position
- C.
Resister position
- D.
Active retainer
Correct Answer
D. Active retainer -
- 43.
What year did GM stop putting codes on locks
- A.
1978
- B.
1974
- C.
1983
- D.
1981
Correct Answer
A. 1978 -
- 44.
In 1990 GM began installing what?
- A.
Transponder systems
- B.
10 cut cylinders
- C.
VIN numbers
- D.
Key mac's
Correct Answer
A. Transponder systems -
- 45.
What does VIN stand for?
- A.
Vehicle information number
- B.
Vehicle Identification number
- C.
Vendor identification number
- D.
Valued info number
Correct Answer
B. Vehicle Identification number -
- 46.
The gate area in a combination lock drive cam where the lever nose does not contact the drive cam is called the
- A.
Contact area
- B.
Slot pass
- C.
Contact point
- D.
Drop in point
Correct Answer
A. Contact area -
- 47.
The area on each side of the drive cam gate that the lever nose makes contact with, is called the:
- A.
Drop in
- B.
Contact point
- C.
Contact area
- D.
Forbidden zone
Correct Answer
B. Contact point -
- 48.
A dial that is designed to readily accept a key locking core at anytime is called
- A.
Keyed code dial
- B.
Combination dial
- C.
Offset keyway
- D.
Convertible dial
Correct Answer
D. Convertible dial -
- 49.
A direct drive is what?
- A.
Pertaining to a combination lock with the drive cam mounted on the dial spindle shaft
- B.
The bolt that actuates the driver
- C.
Directly pushes against lock bolts
- D.
Retracts all lock heads for opening
Correct Answer
A. Pertaining to a combination lock with the drive cam mounted on the dial spindle shaft -
- 50.
What is the lever in a combination lock?
- A.
The handle/lever on front of combination lock
- B.
Part of combination lock that engages the drive cam
- C.
The device inside inside a safe lock case that prevents the lock bolt from being retracted
- D.
The cam of lock that operates the gate
Correct Answer
B. Part of combination lock that engages the drive cam -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
May 30, 2017Quiz Edited by
ProProfs Editorial Team -
Feb 07, 2015Quiz Created by
Lockmonkeyfm
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