Steamfitter Certificate of Qualification (CFQ) Practice Exam 2025 – All-in-One Resource to Ensure Exam Success!

The acronym for the Canadian design of pressurized water reactor (PWR) steam generators is CANDU, which stands for Canadian Deuterium Uranium. CANDU reactors utilize heavy water (deuterium oxide) as both coolant and moderator, which allows for the use of natural uranium as fuel. This design is significant because it boasts several advantages, including efficient fuel utilization and the ability to refuel while operating.

The other options represent different types of reactors or systems: PHWR refers specifically to Pressurized Heavy Water Reactor, which is a type of reactor design used in Canada, while BWR stands for Boiling Water Reactor, a different type of reactor design entirely. PWR-C is not a recognized term in the context of Canadian steam generators, as it combines elements but does not accurately reflect the established acronym.