Q67 — Continuous Rod Motion Entry Conditions
APE: 001 Continuous Rod Withdrawal-AA1.07 (3.3)
Given:
Which ONE of the following completes the statement below?
S2.OP-AB.ROD-0003 (CONTINUOUS ROD MOTION) entry conditions are met when rods withdraw _(1)_ a MINIMUM of _(2)_ steps at steady state conditions.
Which ONE of the following completes the statement below?
S2.OP-AB.ROD-0003 (CONTINUOUS ROD MOTION) entry conditions are met when rods withdraw _(1)_ a MINIMUM of _(2)_ steps at steady state conditions.
A. (1) or insert (2) 3
B. (1) or insert (2) 2
C. (1) ONLY (2) 3
D. (1) ONLY (2) 2
▶ Show Answer & Explanation
✓ A. Correct. S2.OP-AB.ROD-0003 (CONTINUOUS ROD MOTION) entry conditions are met when rods withdraw or insert a MINIMUM of 3 steps at steady state conditions.
✗ B. Incorrect but plausible. Part 1 is correct. For Part 2, S2.OP-AB.ROD-0003 basis discusses that rods can step up to 2 steps as a result of process noise. Consequently, the candidate could incorrectly conclude that S2.OP-AB.ROD-0003 entry conditions are met when rods step a MINIMUM of 2 steps at steady state conditions.
✗ C. Incorrect but plausible. For Part 1, the candidate could incorrectly conclude that S2.OP-AB.ROD-0003 (CONTINUOUS ROD MOTION) entry conditions are met when rods withdraw ONLY. Part 2 is correct.
✗ D. Incorrect but plausible. For Part 1, the candidate could incorrectly conclude that S2.OP-AB.ROD-0003 (CONTINUOUS ROD MOTION) entry conditions are met when rods withdraw ONLY. For Part 2, S2.OP-AB.ROD-0003 basis discusses that rods can step up to 2 steps as a result of process noise. Consequently, the candidate could incorrectly conclude that S2.OP-AB.ROD-0003 entry conditions are met when rods step a MINIMUM of 2 steps at steady state conditions.
Ref: S2.OP-AB.ROD-0003 (Continuous Rod Motion) | LO: NOS05ABROD3-05 | Source: New | Cognitive: Lower
Connections
- Related systems: Control Rod Drive
- Related procedures: AB.ROD-0003 — Continuous Rod Motion
- Related exam: 2019 NRC Written Exam