A taper is provided on both the cotter and its corresponding slot in order to_________________?
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Answer: B. on one side only
Explanation
Cotters and their mating slots are tapered on only one side to ensure uniform parallel alignment of connected components. A single-side taper prevents any lateral displacement or angular misalignment of the joined shafts during the tightening process. This specific geometrical configuration allows easy wedging while maintaining precise axial positioning of the assembled mechanical elements. A cotter joint is a temporary fastening device used to connect rigid rods or piston rods subjected to tensile and compressive loads. The wedge-like taper provides mechanical advantage, securely locking the components together when driven tightly into position. Machining a taper on both sides would introduce unwanted sliding freedom and compromise the overall stability of the joint.
Option A is incorrect because a double-sided taper would cause misalignment and destroy the parallel relationship of connected parts. Option C is wrong because a lack of taper would eliminate the wedging mechanism entirely and prevent secure locking. Option D is incorrect because tapers must be precisely oriented on specific mating surfaces rather than placed randomly.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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