Text

2015 Clinton Power Station Initial License Examination Form ES-401-9
	ML15313A063
Person / Time
Site:	Clinton
Issue date:	11/06/2015
From:	; Division of Reactor Safety III
To:	;
	Zoia, C D
Shared Package
ML15124A054	List: ML15313A055; ML15313A061; ML15313A062; ML15313A063; ML15313A064; ML15313A066; ML15313A201; ML15314A105;
References
	Download: ML15313A063 (9)
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ES-401 W ritten Exam i nation Review W orksheet C LIN TO N 2015 Form ES-401-9 1. 2. 3. Psychometric Flaws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK LOO (F/H) (1-5) Stem Cues T/F Cred. Partial Job-Minutia #I Back-Q= SRO B/M/N U/E/S Explanation Focus Dist. Link units ward KIA Only 1 L 3 x x y N u The stem states " IRM detectors are withdrawn from the core region during power operation within a tube which extends from the core p l ate up to the top guide." This question has two problems 1) the IRMs run i n dry tubes that extend from the be l ow the reactor vessel to the top gu i de. So there is no correct answer. 2) the dry tub is inserted into a guide tub . So both the " IRMs are within a dry tube" and " the IRMs are with in a guide tube" would be correct. RESOLUTION

Question replaced 2 H 3 y B s 3 L 3 y B E The stem now reads Which ONE of the following will generate a reactor scram SIGNAL as a result of this loss of power?" Consider changing " SIGNAL* to " input signal". The stem condit ions would o nly be a 'h scram? RESOLUTION

Change made Instructions (Refer to Section D of ES-401 and Appendix B for additional information regarding each of the following concepts.) 1. En t er the level of knowledge (LOK) of each question as either (F)undamental or (H)igher cognitive level. 2. En t er the level of difficulty (LOO) of each question using a 1 -5 (easy -difficult) rating scale (questions i n the 2 -4 range are acceptable). 3. Check the appropriate box if a psychometric flaw is identified

The stem lacks sufficient focus to elicit the correct answer (e.g., unclear in tent , more information is needed , or too much needless information).

The stem or distractors contain cues (i.e., clues. specific determiners , phrasing , length , etc). The answer choices are a collection of unrelated true/false statements. The distractors are not credible; single implausib le distractors should be repaired , more than one is unacceptable. One or more distractors is (are) partially correct (e.g., i f the applicant can make unstated assumptions that are not contradicted by stem). 4. Check the appropriate box if a job content error is identified

The question is not linked to t he job requirements (i.e., the question has a valid KIA but , as written , is not operational in con tent). The question requires the recall of knowledge that is too specific for the closed reference test mode (i.e., it is not required to be known from memory). The question contains data with an unrealistic leve l of accuracy or inconsis tent units (e.g., panel meter in percent with question in gallons). The question requires reverse logic or application compared to the job requ irements. 5. Check questions that are sampled fo r conformance with the approved KIA and those that are designated SRO-only (KIA and license level mismatches are unacceptable). 6. Enter question source: (B)ank , (M)odified , or (N)ew. Check that (M)odified questions meet criteria of ES-401 Section 0.2.f. 7. Based on the reviewer's judgment , is the question as written (U)nsatis factory (requiring repair or replacement), in need of (E)di toria l enhancement , or (S)atisfactory?

a. At a minimum , explain any " U" ratings (e.g., how the Append ix B psychometric attributes are not being met).

ES-401 2 F o rm ES-4 0 1-9 1. 2. 3. Psychometric Flaws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK L OO (FIH) (1-5) Stem Cues T/F Cred. Partial Job-Minutia #I Back-Q= SRO B/M/N U/E/S Explanation Focus Dist Link units ward KIA Only 4 H 3 y B s 5 H 4 y B s 6 H 4 y N s 7 H 2 y N s 8 L 4 y B s 9 L 3 y N s 10 H 4 y 8 s 11 H 3 y N s 12 H 3 y B s 13 H 2 y N u This quest ions has 2 problems: 1) If in the condition of the stern the Governor is held in the raise posi t ion long enough to see a r i se in both watts and current I believe you w o u ld a l so see a rise in vars. Then there wou l d be n o co rr ect answer. (on t he simu l ator try raising load from 3000 to 3500 Kw and see if vars change.) 2) JPM " Parallel DG 18 With Offsite Power* will dup lic ate th i s question. RESO L UTIO N: Quest ion revised 1 4 H 2 y N s 15 H 3 y B s 16 H 4 y N s 17 L 3 y B s 18 H 3 y N s

1. 2. 3. PsychOmetric Flaws 4. Job Co nt ent Flaws 5. O t he r 6. 7. 8. Q# LO K LOO (F I H) (1-5) Stem Cues T/F Cred Partial Job-M inuti a #I Back-Q= SRO B/M/N U/E/S Exp l anation Focus Dist. Link units ward KJA Only 1 9 H 3 y B s 20 H 3 y B s 21 H 3 x y N IJ I do not think this is an RO leve l TS question as written. Conside r E changing the bullets to -1 E21-F011 LP CS Pump Min F low Rec ir c Valve be closed with fuses removed. -AUTO start of the LPCS disab le d. RESOLUTION

Site s u pported that the question met the expectat i ons o f ROs a t C l inton . Editorial ch a nges made. 22 H 3 y B s 23 H 2 y N s 2 4 L 3 x y B u Between LPR M calibrat i ons APRM gains would be adjusted to accou nt for LPRM detector U235 dep le tion. RESOLUTIO N: Th e second correct a n swer was changed. 25 H 3 y B s 26 L 3 y N s 27 L 3 x y M u If " D" is co r rect then " a** will be correct. Consider changing " A" and " B" (1) to 'primary b ut NOT secondary" . RESOLUTIO N: Requested change made 28 l 3 y B s 29 l 3 y B s 30 L 3 y B s 31 H 3 y N s 32 L 3 y N s 33 L 4 y N s 34 H 3 y N s

1. 2. 3. Psychometric Flaws 4. Jo b Content Flaws 5. O the r 6. 7. 8. Q# LO K LOO (F/H) (1-5) Stem C u es T/F Cred. Partia l Jo b-M in utia #I Back-Q= SRO B/M/N U/E/S Explanation Focus D ist. Link units ward KI A Only 35 H 2 y B s 36 L 3 y N s 37 l 3 x y B y " B" p revent b o r on dil ut ion , *c* p re ven t injection inside the shroud are E both correct. See EO P-1A r eference provided.

RESOLUTION:

The stem was c han ged to c la rify th e ques t ion. 38 L 2 y N s 39 H 3 y N s 40 L 3 y 6 s 41 l 3 y B s 42 H 3 y M s 43 H 3 y B s 44 l 3 y N s 4 5 L 2 y B E List the distracto rs lowest t o highest. i.e. switch " B' and " C". RESO LU TIO N: Change made 4 6 H 3 y N s 47 H 3 y N s 48 L 3 y B s 4 9 H 3 x y B E 1) For th e conditio ns g i ven i n the stem is i t expec ted that the cool down rate w ill inc rease o r de crease with time? *s* will be correct on l y with an increas ing o r constant cool down rate. 2) For distrac te r " A' should it be changed to " Shift RCIR discharge to the reactor vesse l"? Because with RCIR in tank to tank vessel leve l would be unchanged by raising flow. RESOLUTIO N: Stem and distracter changed 50 H 2 y B s

1. 2. 3. Psychometric Flaws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK LOO (F/H) (1-5) Stem Cues T/F Cred. Partial Job-Minut ia #I Back-Q= SRO B/M/N U/E/S Explanation Focus Dist. Link units ward KIA Only 51 L 3 x y N u It is not clear in the stem if in part (2) of the question we are asking for the action to be taken at the t ime level is 18ft 9inches (answer D), or at t he 15ft 1 inch (Answer C) RESOLUTION

Question revised. 52 L 3 y B E Change " B" to , " lowest possible driving head and flow fr o m the primary system!:tO reduce the discharge rate." RESOLUTION

Change made 53 L 3 y B s 54 H 3 y M s 55 L 3 y N s 56 H 3 y N s 57 H 4 y N E I th ink we need to provide the candidates with a time after the loss of offsite power that the plant conditions are current for. (th e fact that an SRV is open after a LOFP doesn't= ATWS at time 0) Also do you think it is fair to ask an operator to diagnose an A TWS and not give them control rod or APRM info. Maybe we should say you are the BOP and observe the conditions. RESOLUTION

Added time = 5 minutes. And justified question based on operator training.

58 H 3 y M s 59 H 3 y B s 60 H 3 x y B l:J For the conditions of the stem I do not believe you can " main ta in E steady states power and balance loop flows" to maintain steady states power for the stem conditions it will require an imbalance in loop flow. RESOLUTION

The conditions of the stem did not require a flow change to comply with Tec h Specs , therefore only editorial changes needed to be made 61 L 3 y B s

1. 2. 3. Psychome tric Fla w s 4. Job Content Flaws 5. Other 6. 7. 8. Q# LO K LOO (F/H) (1-5) Stem Cues T/F Cred. Partial Job-Minutia #I Back-Q= SRO B/M/N U/E/S Exp lan at i on Focus Dist. Link un i t s ward KIA Only 62 L 4 y B s Comment: add an explanation for " D" being incorrect t o the answer key. RESOLUT I O N: Done 63 H 3 y B s 64 L 4 y B s 65 H 4 y B s 66 H 3 y N s 67 L 3 y N s 68 L 3 y B s 69 L 2 y N s 70 L 3 y B s 71 L 2 y B s 72 H 3 y N s 73 H 3 x y B y For a rod drop as descr i bed in t he stem there wo uld be a ROD s DRIFT A larm. Therefore

" A" wou ld be wrong for the same re ason as M C. RESOLUTION

Site explained why t he r e would be n o ROD DR IF T A l arm. 74 H 4 x y N y CPS 401 0.01 step 4.2. 4. Specifically call out Condenser Vacuum E Pumps as needing to be considered for ra d condit ion s. Therefore

" C" is correct. Ed i torial: change S t em to. Under these conditio ns , when 12erforming the SUBSEQUENT A CTIO N s OF CPS 4100.01, what special precaution must be taken to minimize the radiological impact of this event when ... RESOLUTIO N: Site explained why " C" was i ncorrect.

On ly editor i al changes were needed. 75 L 4 y B s

1. 2. 3. Psychometric Flaws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK LOO (F/H) (1-5) Stem Cues T/F Cred. Partial Job-M in utia #I Back-Q= SRO B/M/N U/E/S E xplanat ion Focus D ist. Link units wa r d KIA Only s R 0 0 N L y Q u E s T I 0 N s 1 H 3 y y N s 2 H 3 y y N s 3 H 3 y y M s 4 H 3 y y M s 5 H 3 y y N s 6 H 3 x y y N y 1} The question " If the appropr i ate actions are taken , can a E plant startup commence?" is too vague you can always start up after all appropriate action are take n. Did you mean " Does Tech Spec 3.3.1.1 a llo w re start without repair of the failed channels?" 2) Could CH A and D have t ripp ed at 19:42: 12: 15.!1,? I f so cou ld t h is confuse the candidates. RESOLUT I ON: Only editorial changes were needed in this question 7 H 3 y N N y This question is written at RO level. i.e. With current conditions s should feedwater be shutoff, s ho uld HPCI be shutoff , should MSIVs be closed. RESOLUTION

Site was able to justify the question as SRO only based on the NRC guide. 8 H 2 y y N s 9 H 3 y N B y This question does not incl ude *selection o f procedures" only RO E level evaluation of plant condi t ion. Can you change to " enter CPS XXX to spray t he containment , etc" RESOLUTION

Only editorial changes w here n eeded. 10 H 3 y N B s 11 H 3 y y N s

1. 2. 3. Psychometric Fla ws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK LOO (F/H) (1-5) Stem Cues T/F C r ed. Partial Job-M inutia #I Back-Q= SRO B/M/N U/E/S Explanation F ocus Dist. Li nk units ward KIA Only 12 H 4 y y N s 13 H 3 y y N s 14 H 3 y y N s N ote: this was accepted as SRO because the candi dat e was effectively asked to select a sec ti on of the S B O p r ocedu re to direct. 15 H 3 y y N s 16 H 3 y N N y Th is question can be answered knowing the power source of the s i solation valves and that the valves should function at 1 42 F , RO knowledge. Ma ybe we could ask " Under these conditions sho uld an emergence event FU1be declared." As the seco n d part o f the quest i on. RESOLUTION

Si te was able to justify the question as SRO only based on the N RC guid e. 17 L 2 y y N s 18 H 3 y y N s 19 H 4 y y B s 20 H 4 y y N s 21 H 3 y y M s 22 H 3 y y B s 23 L 2 y y N s 24 H 2 x y y B u Why would anyone bel ieve recording a potential LCO would preven t a re l ease? Answers " C & D" RESOLUTION

the question was rewritten. 25 L 3 y y N s ES-401 W ritten Exam i nation Review W orksheet C LIN TO N 2015 Form ES-401-9 1. 2. 3. Psychometric Flaws 4. Job Content Flaws 5. Other 6. 7. 8. Q# LOK LOO (F/H) (1-5) Stem Cues T/F Cred. Partial Job-Minutia #I Back-Q= SRO B/M/N U/E/S Explanation Focus Dist. Link units ward KIA Only 1 L 3 x x y N u The stem states " IRM detectors are withdrawn from the core region during power operation within a tube which extends from the core p l ate up to the top guide." This question has two problems 1) the IRMs run i n dry tubes that extend from the be l ow the reactor vessel to the top gu i de. So there is no correct answer. 2) the dry tub is inserted into a guide tub . So both the " IRMs are within a dry tube" and " the IRMs are with in a guide tube" would be correct. RESOLUTION