Which dial rotation do the X-09 and X-10 electromechanical built-in combination locks have in common?

Which dial rotation do the X-09 and X-10 electromechanical built-in combination locks have in common?

• A. Left-Right-Left
• B. Right-Left-Right
• C. Up-Down-Left
• D. Left-Left-Left

Answer: (A)

The idea being tested is how these locks are designed to be opened using a specific dial rotation pattern. For both X-09 and X-10, the unlocking sequence is a three-step turn: left, then right, then left. This pattern matches how their internal wheels and cams are arranged, so the first left turn positions the first wheel into contact, the right turn aligns the second wheel, and the final left turn aligns the third wheel and lets the bolt engage or release. Because both models share the same mechanical layout, they use the same dial rotation sequence. The other patterns don’t fit the operation of these particular locks. A pattern that starts with turning in the opposite direction or repeats the same direction without alternating would not correctly index the sequential wheels and cams needed to release the bolt. And a direction like “up-down” isn’t how a dial-driven lock operates, since rotations are all about turning the dial left or right.

The idea being tested is how these locks are designed to be opened using a specific dial rotation pattern. For both X-09 and X-10, the unlocking sequence is a three-step turn: left, then right, then left. This pattern matches how their internal wheels and cams are arranged, so the first left turn positions the first wheel into contact, the right turn aligns the second wheel, and the final left turn aligns the third wheel and lets the bolt engage or release. Because both models share the same mechanical layout, they use the same dial rotation sequence.

The other patterns don’t fit the operation of these particular locks. A pattern that starts with turning in the opposite direction or repeats the same direction without alternating would not correctly index the sequential wheels and cams needed to release the bolt. And a direction like “up-down” isn’t how a dial-driven lock operates, since rotations are all about turning the dial left or right.