2018 Q6 — PRT Cooling Operation

✓ D. Correct. For Part 1, PRT cooling is accomplished by a feed (via 2WR82) and bleed (via 2PR14) of the tank. Operation of WR82 and PR14 can only be performed manually. For Part 2, during PRT Cooling, the PRT is drained directly to the RCDT pump suction header.

✗ A. Incorrect but plausible. For Part 1, since there are many other processes that have automatic functions, the candidate could incorrectly conclude that PRT Cooling can be performed manually and automatically. For Part 2, since the draining of the PRT is ultimately pumped from the RCDTs, the candidate could incorrectly conclude that when the PRT is drained via PR14 directly into the RCDT (like so many other water sources).

✗ B. Incorrect but plausible. For Part 1, since there are many other processes that have automatic functions, the candidate could incorrectly conclude that PRT Cooling can be performed manually and automatically. Part 2 is correct.

✗ C. Incorrect but plausible. Part 1 is correct. For Part 2, since the draining of the PRT is ultimately pumped from the RCDTs, the candidate could incorrectly conclude that when the PRT is drained via PR14 directly into the RCDT (like so many other water sources).

Ref: NOS05PZRPRT-06 (Pressurizer and Pressurizer Relief Tank) | LO: NOS05PZRPRT-06 — Identify CR controls, indications, and alarms for PZR and PRT | Source: Modified Bank | Cognitive: Lower