Unlock Your Potential: Conquer the ALOA Locksmith Test 2025 – Master the Keys to Success!

Question: 1 / 400

In a 5 pin tumbler system with a KBA and 2 chambers, how many master key choices are available?

8 master keys

16 master keys

In a 5 pin tumbler system, each pin can be set to one of several depths, creating different key combinations. When we incorporate the concept of a Key Block Assembly (KBA) and the fact that there are 2 chambers involved, the master keying combinations multiply.

For a standard 5 pin system, each pin can generally have a range of depths, which is often 2 depths (for instance, a 'master key depth' and a 'normal depth'). Since there are 5 pins, and with 2 chambers, we can view it as if each chamber is capable of holding a combination that can either correspond to the normal or master depth for each pin.

Therefore, each of the 5 pins has 2 choices (normal depth or master depth), leading to the total combination calculation as \(2^5\), which is 32 possible combinations. Since there are 2 chambers, this allows for an arrangement where each pin and both chambers contribute to the master keying scenario.

When considering that each chamber's contribution is independent, the total master key options become \(2^5\) for the 5 pins, yielding a total of 32 unique master keys that can be generated in this system

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32 master keys

64 master keys

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