St. Lucille SRO Exam: Given the following conditions: • Unit 2 is at 100% power. • 2A and 2B Inta...

Question

Given the following conditions:

• Unit 2 is at 100% power.

• 2A and 2B Intake Cooling Water pumps are operating on their respective headers.

• 2C Intake Cooling Water pump is in standby aligned to the A header.

• The 2B Intake Cooling Water pump trips unexpectedly.

1) Which ONE of the following states the acceptability of an "IMMEDIATE ATTEMPT" to restart the 2B Intake Cooling water pump?

2) Which ONE of the following would be the required actions if the 2C Intake Cooling Water pump was started with the pump valve alignment configured to the B side but the electrical alignment remained to the A side?

AnswerChoose the correct answer.Choose all that apply. Correct Partially correct Incorrect Don't Know

  1. A
    Correct Answer

    1) One restart attempt IS allowed for the stated conditions.

    2) The respective offsite power source AND the 2B Intake Cooling train must be declared out of service.

  2. B
    Correct Answer

    1) One restart attempt IS NOT allowed for the stated conditions.

    2) ONLY the 2B Intake Cooling train must be declared out of service.

  3. C
    Correct Answer

    1) One restart attempt IS allowed for the stated conditions.

    2) ONLY the 2B Intake Cooling train must be declared out of service.

  4. D
    Correct Answer

    1) One restart attempt IS NOT allowed for the stated conditions.

    2) The respective offsite power source AND the 2B Intake Cooling train must be declared out of service.

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Published on by U.S. Nuclear Regulatory Commission
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