Terminology check: A machine pin (e.g., dowel pin, taper pin, cotter pin) is primarily a locating or fastening element and does not store and release energy like a spring. Decide whether the statement describing a machine pin as an energy-storing device is correct.

Introduction / Context:
Pins and springs serve different mechanical purposes. Pins locate components, prevent relative motion, or retain parts; springs store potential energy and return it when released. We evaluate a statement that wrongly attributes spring behavior to a machine pin.

Given Data / Assumptions:

• Common pins: dowel, taper, clevis, cotter, split (spring) pin.
• Function: location, shear transfer, or retention—not energy storage.
• Springs: compression, extension, torsion, leaf, etc.

Concept / Approach:
While a split pin has elastic properties to open/close its tines for retention, its purpose is not to store and later deliver work the way a spring does. Energy-storage intent defines a spring; pins are primarily fasteners or locators and are sized for shear, bearing, or retention, not for elastic work output.

Step-by-Step Solution:
1) Identify the component described (machine pin) and its role.2) Contrast with spring behavior (deflection-forces relationship).3) Note that any elastic bending of a pin during installation is incidental.4) Conclude the statement is incorrect.

Verification / Alternative check:
Standards and catalogs list pins under fasteners; performance criteria focus on shear and fit, not spring rate or fatigue cycles.

Why Other Options Are Wrong:
“Correct”: Confuses fasteners with springs.“Split pins under load” / “Taper pins in shear”: These rely on deformation for retention or friction, not designed energy storage.

Common Pitfalls:
Assuming any elastic component is a spring; ignoring primary design intent and standards classification.

Final Answer:
Incorrect