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Interviewers ask this kind of question to surface how you think, not what you remember. The strongest answers are specific, calmly told, and end on what changed.

Process optimization · Identifying constraints

A solid-dose tablet line runs well below its OEE target and you suspect the coating step, but the production team insists the compression press is the limit. Walk me through how you'd find the true constraint.

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I'd resist adopting either team's opinion and go look for where work-in-process accumulates.…

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Concepts behind this questionBottlenecks & queues: why waits explode near capacity
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