Product Design Engineer Interview Questions

633 product design engineer interview questions shared by candidates

1. Effects of fatigue on stress strain curves. How does the yield point change with each loading? Show where the yield point is on the curve. 2. Tolerance stack ups (Monte Carlo, RSS and worst-case scenario) and other GD&T questions like flatness, surface profile. 3. Cantilever beam questions (PCB has metal wires connected to it. How would you change its rigidity) 4. In what ways would you mount PCBs in a plastic housing. 5. Thermal stresses when a PCB is heated to a certain temperature.
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Product Design Engineer

Interviewed at Meta

3.6
Sep 8, 2025

1. Effects of fatigue on stress strain curves. How does the yield point change with each loading? Show where the yield point is on the curve. 2. Tolerance stack ups (Monte Carlo, RSS and worst-case scenario) and other GD&T questions like flatness, surface profile. 3. Cantilever beam questions (PCB has metal wires connected to it. How would you change its rigidity) 4. In what ways would you mount PCBs in a plastic housing. 5. Thermal stresses when a PCB is heated to a certain temperature.

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