2018 Q23 — R19 SGBD Warning Unit Difference

✓ D. Correct. For Part 1, Unit 1 has no automatic functions when a R19 goes in to warning. Automatic functions only occur when the monitor goes into alarm. Consequently, with 1R19A in warning (at 17:01:00), 11GB185 (Blowdown Discharge to Condenser) is open. For Part 2, Unit 2 has automatic functions that occur when a R19 goes in to warning. Consequently, with 2R19C in warning (at 19:46:00), 23GB185 (Blowdown Discharge to Condenser) is closed.

✗ A. Incorrect but plausible. For Part 1, the candidate may incorrectly conclude that for Unit 1, there are automatic functions when a R19 goes in to warning. Consequently, the candidate would then incorrectly deduce that at 17:01:00, 11GB185 (Blowdown Discharge to Condenser) is closed. For Part 2, the candidate may incorrectly conclude that for Unit 2, there are no automatic functions when a R19 goes in to warning. Consequently, the candidate would then incorrectly deduce that at 19:46:00, 23GB185 (Blowdown Discharge to Condenser) is open.

✗ B. Incorrect but plausible. For Part 1, the candidate may incorrectly conclude that for Unit 1, there are automatic functions when a R19 goes in to warning. Consequently, the candidate would then incorrectly deduce that at 17:01:00, 11GB185 (Blowdown Discharge to Condenser) is closed. Part 2 is correct.

✗ C. Incorrect but plausible. Part 1 is correct. For Part 2, the candidate may incorrectly conclude that for Unit 2, there are no automatic functions when a R19 goes in to warning. Consequently, the candidate would then incorrectly deduce that at 19:46:00, 23GB185 (Blowdown Discharge to Condenser) is open.

Ref: NOS05RMS000-17 (RADIATION MONITORING SYSTEM) | LO: 5 NCT — Outline the interlocks associated with the R19A, B, C, & D Steam Generator Blowdown Liquid Monitors | Source: Modified Bank | Cognitive: Higher