Question 162Steam Plants - QMED
70% to passWhich of the filter/strainer units listed permits you to clean the element while leaving the system on the line?
ASimplex
BDuplex
CCanister
DBypass
AI Explanation
The correct answer is B) Duplex. A duplex filter/strainer unit allows you to clean the filter element while leaving the system online. This is because a duplex unit has two parallel filter chambers, allowing one chamber to be isolated and serviced while the other remains in operation, maintaining system flow. In contrast, simplex, canister, and bypass filter units do not have this dual-chamber design, so the system must be taken offline to clean or replace the filter element.
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