An ultrahigh pressure pump is defined as which range?

• A. Less than 500 psi
• B. 500-1100 psi
• C. 1100 psi or greater
• D. 85-100 psi

Answer: (C)

Pumps are categorized by the pressure they deliver, and an ultrahigh pressure pump is defined by reaching very high pressures. The threshold used is 1100 psi or greater. This distinguishes ultrahigh pressure systems from standard and high‑pressure pumps, which operate at lower ranges and are not designed for the high‑pressure nozzles or devices that require 1100 psi or more. The other ranges fall short of what ultrahigh pressure equipment is built to handle, so they don’t fit the same category.