General Studies · Gears

In a rack and pinion gear mechanism, the rack typically refers to which of the following component structures?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1A long cylindrical rod with continuous spiral teeth on its surface
2A long square rod with external bevel teeth along its edge
3A straight gear rod with a rectangular cross-section having teeth cut on one flat surface✓
4A long flat bar with a triangular cross-section and helical teeth

Correct answer

A straight gear rod with a rectangular cross-section having teeth cut on one flat surface

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