Positive Displacement Pump Types

This question practices basic industrial product knowledge and the ability to describe how mechanical equipment works at a high level. In investment banking interviews, especially for coverage groups with industrials exposure, interviewers may test whether you can quickly understand a company’s product mix, explain core operating principles, and distinguish between major equipment types without getting lost in technical detail. The key skill is organizing a broad set of pump designs into the right families and understanding the motion, pressure changes, and flow path that make them work. This kind of question also checks whether you can communicate technical concepts clearly and concisely, which matters when discussing customers, end markets, and competitive positioning.