In a standard pin tumbler lock, which pins sit directly against the key?
Lock Anatomy
Question · Easy
The imaginary line at which the plug separates from the shell in a pin tumbler cylinder is called the:
Which lock mechanism uses flat, spring-loaded plates that retract into the plug when the correct key is inserted?
A disc detainer lock (such as Abloy) operates by:
Question · Medium
In a lever tumbler lock, what must each lever do for the bolt to move?
What distinguishes a tubular (radial) pin tumbler lock?
The rotating portion of a pin tumbler cylinder that holds the keyway is called the:
Springs in a standard pin tumbler cylinder are located:
The projecting metal part on the back of a cylinder that engages the lock mechanism is the:
Which of the following is NOT a common lock mechanism family?
A warded lock blocks incorrect keys by:
A typical residential pin tumbler cylinder has how many pin chambers?
The shape of the cross-section of a key that determines which cylinders it will enter is the:
Key Blanks Cutting
On a key, the flat reference surface that stops the blank at the correct insertion depth on most Schlage and mortise keys is the:
The numerical sequence describing each cut depth on a key (e.g., 1-3-5-2-4) is called the:
A 'blind code' is:
On a key, 'spacing' refers to:
Which is NOT generally a part of a key?
An MACS (Maximum Adjacent Cut Specification) value defines:
When using a duplicating (tracer) key machine, the original key should be:
After cutting a key on a duplicator, the burrs should be removed:
A key cut 'by code' differs from a key cut 'by duplication' in that:
Impressioning is a method of:
Key Impressioning Master Keying
In master keying, a master pin is:
In standard master-key nomenclature, the key that operates ALL cylinders in a single building is typically the:
The abbreviation 'SKD' on a master-key schedule stands for:
A 'maison' key system is one in which:
A construction master key (CMK) system is designed to:
A 'control key' in an interchangeable core (IC) system is used to:
When impressioning, rotational tension should be:
A cross-keyed cylinder is one that:
Question · Hard
A deadbolt is considered more secure than a spring latch because:
Residential Hardware
Under ANSI/BHMA A156.x grading, which grade is the highest (best) for a residential/commercial lockset?
Minimum recommended deadbolt throw for residential exterior doors (to resist kick-in) is typically:
A 'mortise' lock differs from a 'cylindrical' (bored) lock in that:
A 'rim' cylinder is most commonly found on:
The standard residential door backset is typically:
A leverset is generally required over a knobset for:
The metal plate on the jamb that receives the bolt or latch is called the:
A double-cylinder deadbolt has:
A handing indicator 'LHR' on a door means:
An exit device (panic hardware) must:
Commercial Hardware
A door closer's 'backcheck' function:
An electric strike primarily replaces the:
'Fail-safe' on an electric strike means:
A Grade 1 commercial exit device must meet which ANSI/BHMA standard?
A request-to-exit (REX) device on an access-controlled door is used to:
A magnetic (maglock) holding force of 1200 lb is MOST commonly specified for:
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