ML20199F014

Exam Rept 50-155/OL-86-01 on 860506-08.Exam Results:All Four Senior Reactor Operator Candidates Passed Written & Operating Exams

ML20199F014
Person / Time
Site:	Big Rock Point File:Consumers Energy icon.png
Issue date:	06/19/1986
From:	Burdick T, Morgan T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20199E989	List: ML20199E985 ML20199F014
References
50-155-OL-86-01, 50-155-OL-86-1, NUDOCS 8606240169
Download: ML20199F014 (9)

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U.S. NUCLEAR REGULATORY COMMISSION REGION III l

Report No. 50-155/0L-86-01 I

Docket No. 50-155 License No. DPR-6 Licensee: Consumers Power Company 212 West Michigan Avenue Jackson, MI 49201 j

j Facility Name: Big Rock Point Nuclear Power Station f

Examination Administered At:

Big Rock Point I

Examination Conducted: May 6, 7, and 8, 1986 1

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Examiner:

T.

organ 6//9/8/,.

Date 02 b

'.'/k fg Approved By:

M. Burdick, Chief Operating Licensing Section Date Examination Summary Examination administered on May 6, 7, and 8, 1986 (Repor'. No. 50-155/0L-86-01))

Examinations were administered to four senior reactor operator candidates.

Results: All four senior reactor operator candidates passed the written and operating examinations.

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B606240169 860619 l

PDR ADOCK 05000155 PDR l

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4 REPORT DETAILS 1.

• Examiners j

• T. L. Morgan, INEL i

• Chief Examiner 2.

Examination Review Meeting I

At the conclusion of the written examination, the questions and answers were given to the facility training staff for review and comment. At the i

exit meeting the facility supplied the examiner with their comments to the SR0 written examination.

On the following pages are the facility comments and the examiner's resolution to each.

3.

Exit Meeting i

At the conclusion of the site visit the examiner met with representatives of the plant site to discuss the results of the examinations. Those individuals who clearly passed the oral examinations were identified in this meeting.

The examiner noted no discrepancies.

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J FACILITY EXAMINATION COMMENTS AND EXAMINER RESOLUTION FOR BIG ROCK POINT EXAMINATION ON MAY 6, 1986

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Question 5.05B Facility Coment:

The candidates will not be able to answer the question about shallow rods, because Big Rock does not have them. However they should be able to discuss the high flux peaks, causing a unit derate, to prevent exceeding thermal limits.

Resolution:

1 Coment is accepted, answer key will be modified to delete the shallow rod discussion and include the discussion on thermal limits and the

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derating. Point value remains the same.

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Question 5.10A j

Facility Comment:

MAPLHGR: The candidates answer will vary slightly from the answer key.

The candidates will state that the MAPLHGR limit decreases initially due 4

to densification. They will state that the pellet first shrinks axially, and radially increasing the gas gap.

(See Attached Reference A) then the i

students answer will follow the answer key.

Resolution:

Coment is accepted, answer key will be modified to include decrease due to densification and the remainder of the answer will remain and point l

value is unchanged.

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Question 5.10B Facility Comment:

The candidates will answer that MAPLHGR limits prevent clad temperature from reaching 2200"F during a L.0.C.A. to prevent clad failure (See i

AttachedReferencesB)

Resolution:

i Comment is accepted, answer key will be modified to accept limiting fuel 1

temp to 2200 F during a LOCA. The point value remains unchanged.

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Question 6.03D Facility Comment:

The candidate may be very specific about the differences in the Yarway l

Steam Drum level sensors.

In that one utilizes an 50 inch or 25 inch using 0 as a midpoint reference column. While the other has an 80 inch or 40 inch with 0 as a midpoint reference column.

Resolution:

Comment noted, no change to the answer key required.

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Question 6.04B Facility Comment:

Technical Specification state two reasons for the 120 sec. timer.

Full consideration should be given both.

(See Attached Reference C).

Resolution:

Comment is accepted, the answer key will be modified to add the second answer. Both answers will be required for full credit.

Point value will remain the same, each answer will be worth 0.25 each.

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Question 6.04D j

Facility Comment:

This question asks what operation ACTION, but the answer key only gives full credit for three separate responses, any one of which meets the question criterion. Full credit should be given any correct singular response.

Resolution:

Ccmment is accepted, due to the miss wording of the question. The answer key will be changed to accept any one of the three possible answers for full credit. The point value will remain unchanged.

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Question 6.05B l

Facility Comment:

Candidate may answer three of three switches all below the 125 X 10E-5%

range (See Attached Schematic Reference D)

Question 6.05C Facility Comment _:

I Candidate may answer three of three switches below the 125 X 10E-7% range (See Attached Schematic Reference D) 4 4

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Resolution:

Coments are noted.

This is stating the same thing as the answer key.

No changes required.

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Question 6.08 Facility Comment:

There does not appear to be adequate information given to answer this question. The examiner references question bank question No. 13, Technical Data Book 15.5.f.7 and ch. 29 Reactor Systems pg 29-5 and 29-6 (all have been attached and marked E). These reference all discuss an open from the thermocouple. The question is about a short. We took The question to the Plant Instrument and Control staff, and their answer to us was that they could not answer the question as to the reading produced by the thermocouple.

It is our position that since this is a three part question, with each part depending on a correct response in part one, the question should be eliminated from this test.

Resolution:

Coment noted. The question will not be deleted, because it is already taken into account that the subparts of this question are dependent upon the answers to the previous portion.

Part a's answer is being changed to 2 or 3.

This is due to examiner error when developing the question and miss wording of choices. Part a remains as is because, any where that the short is assumed to be the temperature will be lower than at the thermocouple, if the candidate answers part a as 2 then part b is 2 and c is 2.

The answer key will be added to reflect these changes. The point value remains the same.

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Question 6.098 Facility Comment:

In September 1985 the Emergency Condenser Outlet Valves power supplies were moved to the Alternate Shutdown system 125 VDC battery. The change was due to Appendix R requirements. The new power now is Alternate Shutdown battery BKR 72-2011 and 72-2012 (8KR No. not necessary in answer).

Resolution:

This comment is for Question 6.09A not part B, as indicated initially.

The coment is accepted and the answer key will be modified to indicate batteries vis DC MCC.

The point value will remain as is.

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10. Question 6.11 l

Facility Coment:

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Students may respond in BRP comon lingo:

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No Coment 2.

Recirc Valve Closure 3.

M.S.I.V. (Main Steam Isolation Valve Closure) 4.

No Coment 5.

Low Condenser Vacuum Resolution:

Coment noted, this is stating the same thing as the answer key.

No modification is required.

11. Question 7.04 Facility Comment:

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Candidates may answer if deliberately poisoning all poison must be injected with no termination.

j Resolution:

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Coment noted. This is paraphrasing the answer key. Exact wording is not required for full credit.

No change to the answer key or point value.

12. Question 7.06A Facility Coment:

There are additional actions that the candidates might list, i

Resolution:

L Comment accepted, the additional actions will be added to the answer key. The point value will remain the same but will be equally divided between all possible responses.

13. Question 7.08 l

Facility Coment:

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When the Scram dump tank is bypassed: Candidates may say when the mode

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switch is in bypass dump tank position (BDTP).

Resolution:

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Coment noted. Exact wording is not required to get full credit, i

paraphrasing is acceptable.

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14. Question 7.09B 1

Facility Coment:

The Recirc pump discharge butterfly valves have no position indication.

(They have been electrically disabled and locked in the open position.)

Resolution:

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Coment accepted. Due to the valve being disabled and no indication 4

available part b will be deleted from question. The point value will be decreased by 0.5.

Section and test totals will be adjusted accordingly.

15. Question 7.11 i

Facility Coment:

The candidates may also include Item 1: of E.M.P. 3.3 as part of the j

answer.

(SeeAttachmentF) 1 Resolution:

I Coment not accepted. Referene* F only applies to the Loss of Coolant Procedure while the question ro ers to all the emergency procedures and l

there guidelines. Answer key and point value remains unchanged.

16. Questiun 8.01 I

l Facility Comment:

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Candidates may also answer temporary change no change of intent.

(See Attachment G Admin. Procedure and Tech. Specs.)

Resolution:

i Coment noted. The question specifically asks about revisions not i

temporary changes.

If the candidate answers for revision and temporary change full credit will be given if only temporary change is discussed then partial credit will be given. Answer key and point value will remain unchanged.

17. Question 8.03 l

Facility Coment:

The candidate may(Big Rock change to a 0.T.A. in 1982) answer On Call Technical Advisor instead of S.T.A. or l

l Shift Engineer.

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Resolution:

i Comment accepted. The title of 0.T.A. or On Call Technical Advisor will l

be added as an alternate title. The point value will remain as is, i

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18. Question 8.10 i

Facility Coment:

The candidate may answer that a trip must be placed in on an affected channel. This action produces a scram should a trip occur on one of the remaining two (See Attachment H) 1 j

Resolution:

f Comment accepted. The answer key will be modified to include this l

statement. The question did not ask how the conditions were accomplished l

J but what was required condition.

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19. Question 8.13b l

Facility Comment:

i The candidate will probably answer using the entire vacuum relief train.

i (See Attachment I) Also the integrity of Containment is more than just l

protecting the structure. So the closing and reclosing after vacuum f

l relief may appear in the candidates answer.

(SeeAttachmentJ)

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Resolution:

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Coment partially accepted. The candidate answer using the entire vacuum i

relief operation as described in Attachment I answers the question.

1 (Attachment I exceeds the requirements for full credit) The second i

portion of the coment referring to what integrity is and when it is j

required is not asked for in the question and, therefore, will not be j

accepted. The answer key and point value will not be changed.

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20. Question 8.14 i

l Facility Coment:

l Big Rock uses a 30 day interval 30 days X 1.25 = 37.5 days not 7.75.

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i Resolution:

i Coment is accepted.

Due to examiners error 31 days was used for the i

monthly interval vis 30.

The answer key will be modified to 7.5 vis 7.7!>

j and 1.5 vis 1.75 respectively.

Point value will remain the same.

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EXAMINER COMMENTS i

j Section Corrections Made During Grading 5.06 Will is misspelled in the second line of part B.

6.07 A should be 4 vis 3, typo.

6.09 C changed " circuit does not indicate open" top " circuit is not open."

Examiners misinterpretation of the reference materiel.

4 8.08 Answer: The "or above" was not asked for in the question, there fore, it is assumed to be implied when the candidate states the E plan level or entry. Only the entry point is required for full credit.

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