1
Locksmithing Questions Test Bank
Updated 2025. Questions & Correct
Answers. Graded A
2 ways a lever tumbler lock is master keyed - ANS By using a double-gated
levers-one operated by change key and other by master key.
By using a control lever tumbler with pin running through it and connecting
that tumbler to the others.
3 keying rules for ford automobiles - ANS-MACS of 2
-at least 3 different cuts must be used
-first 3 digits of the code can't be the same but last 3 may
3 of GM keying rules - ANSMACS of 2, same cut depth can't be repeated 3
or more times in a row, sum of key cut codes must be a even number
4 levels of key control for Assa twin 6000 cylinder - ANSBeta, gamma,
delta, alpha
605 - US3 - ANSBright Brass
606 - US4 - ANSSatin Brass
612 - US10 - ANSSatin Bronze
1
, 2
622 - US19 - ANSFlat Black
625 - US26 - ANSBright Chrome
626 - US26D - ANSSatin Chrome
628 - US28 - ANSSatin Aluminum
630 - US32D - ANSStainless Steel
643e - US11 - ANSAged Bronze
689 - SP28 - ANSSprayed Aluminum
695 - SP13 - ANSSprayed Dark Bronze
8 parts inside lock case of a warded bit key lock - ANSlatch bolt, hub
spindle, latch bolt spring, inside latch lock, inside latch lock spring,
deadbolt, lever tumbler, wards
8 Parts inside lock case of a Warded Padlock - ANSShackle pins, shackle
springs, stop plate, retainer spring, shackle retainer, several dummy plates,
1 or more ward plates, keyway
a common height from the floor to have a key in knob lock - ANS38"
A file used for cutting a key blank by hand - ANSWard File
2
, 3
a lock or cylinder component which transfers the rotational motion of the
key or cylinder plug to the bolt works of the lock is called the what? -
ANScam
a moulding attached to the active leaf of a pair of doors and overlapping the
inactive leaf would be a description of? - ANSan astragal
a wheel pack consists of what parts? - ANSa set of wheels, fly, and
isolation washer supported by a torque adjuster
A3 system stack value and pin increments - ANS16 stack
0.018 increments
A4 system stack value and pin increments - ANS14 stack
0.021 increments
Bottom pin tumblers usually range in length from - ANS0.150" to 0.360"
common key in knob hole to drill in a door for the lock chassis. - ANS2 1/8"
corbin Russwin control sleeve is operated by which pin chambers? -
ANSthe 4 center chambers
Depth of a key refers to what? - ANSmeasurement from the bottom of key
to the bottom-dead-center of each cut
3
Locksmithing Questions Test Bank
Updated 2025. Questions & Correct
Answers. Graded A
2 ways a lever tumbler lock is master keyed - ANS By using a double-gated
levers-one operated by change key and other by master key.
By using a control lever tumbler with pin running through it and connecting
that tumbler to the others.
3 keying rules for ford automobiles - ANS-MACS of 2
-at least 3 different cuts must be used
-first 3 digits of the code can't be the same but last 3 may
3 of GM keying rules - ANSMACS of 2, same cut depth can't be repeated 3
or more times in a row, sum of key cut codes must be a even number
4 levels of key control for Assa twin 6000 cylinder - ANSBeta, gamma,
delta, alpha
605 - US3 - ANSBright Brass
606 - US4 - ANSSatin Brass
612 - US10 - ANSSatin Bronze
1
, 2
622 - US19 - ANSFlat Black
625 - US26 - ANSBright Chrome
626 - US26D - ANSSatin Chrome
628 - US28 - ANSSatin Aluminum
630 - US32D - ANSStainless Steel
643e - US11 - ANSAged Bronze
689 - SP28 - ANSSprayed Aluminum
695 - SP13 - ANSSprayed Dark Bronze
8 parts inside lock case of a warded bit key lock - ANSlatch bolt, hub
spindle, latch bolt spring, inside latch lock, inside latch lock spring,
deadbolt, lever tumbler, wards
8 Parts inside lock case of a Warded Padlock - ANSShackle pins, shackle
springs, stop plate, retainer spring, shackle retainer, several dummy plates,
1 or more ward plates, keyway
a common height from the floor to have a key in knob lock - ANS38"
A file used for cutting a key blank by hand - ANSWard File
2
, 3
a lock or cylinder component which transfers the rotational motion of the
key or cylinder plug to the bolt works of the lock is called the what? -
ANScam
a moulding attached to the active leaf of a pair of doors and overlapping the
inactive leaf would be a description of? - ANSan astragal
a wheel pack consists of what parts? - ANSa set of wheels, fly, and
isolation washer supported by a torque adjuster
A3 system stack value and pin increments - ANS16 stack
0.018 increments
A4 system stack value and pin increments - ANS14 stack
0.021 increments
Bottom pin tumblers usually range in length from - ANS0.150" to 0.360"
common key in knob hole to drill in a door for the lock chassis. - ANS2 1/8"
corbin Russwin control sleeve is operated by which pin chambers? -
ANSthe 4 center chambers
Depth of a key refers to what? - ANSmeasurement from the bottom of key
to the bottom-dead-center of each cut
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