TRA00185

Question 1

What are the three types of commitments in the UFSAR?

Answer 1

1. Design
2. Operational
3. Institutional Safety Programs

Question 2

What section of the UFSAR talks about the reactor design?

Answer 2

Chapter 4

Question 3

What section of the UFSAR talks about experiments?

Answer 3

Chapter 10

Question 4

Define Core Changes

Answer 4

The manual movement or manipulation of any component within the Core Reflector Tank with two or more FUEL ELEMENTS in the reactor CORE. The manual movement of components (e.g.,SAFETY RODS ) using their normal drive mechanisms is not considered a CORE CHANGE however; movement of these components with their normal drive mechanisms disconnected is considered a CORE CHANGE.

Question 5

Define Core

Answer 5

The general region in the Reactor Vessel, within the Core Reflector Tank, containing FUEL ELEMENTS, CONTROL RODS, EXPERIMENT irradiation facilities and reflector.

Question 6

Describe Power Operation

Answer 6

1. > 3 MW
2. PCS at operating pressure
3. EFIS in AUTO

Question 7

Describe Low Power Operation

Answer 7

1. <3 MW
2. PCS at operating pressure
3. EFIS in AUTO

Question 8

Describe Pressurized Standby

Answer 8

1. 0 MW
2. PCS above atmospheric pressure
3. EFIS in AUTO

Question 9

Describe Pressurized Shutdown

Answer 9

1. 0 MW
2. PCS above atmospheric pressure
3. EFIS in MANUAL

Question 10

Describe Depressurized Operation

Answer 10

1. <0.5 MW
2. PCS at atmospheric pressure
3. EFIS in MANUAL

Question 11

Describe Depressurized Shutdown

Answer 11

1. 0 MW
2. PCS at atmospheric pressure
3. EFIS in MANUAL

Question 12

Describe Reactor Defueled

Answer 12

1. 0 MW
2. PCS at atmospheric pressure
3. EFIS not required

Question 13

What makes up the safety basis and where can it be found?

Answer 13

LST-100 in the front of the UFSAR

Question 14

What is the purpose of the UFSAR?

Answer 14

Establishes guidelines for any system or subsystem that is required for operation of a facility within the risk accepted by the DOE

Question 15

What are the barriers to prevent release of radioactive contamination?

Answer 15

Fuel clad
PCS pressure barrier
Confinement

Question 16

How many modes are there?

Answer 16

Seven

Question 17

What is CRD-1?

Answer 17

PISAs with active interim controls

Question 18

What is CRD-2?

Answer 18

Tank lost items list
Sight glass register
PCS leak tracking

Question 19

What is CRD-3?

Answer 19

PM summaries

Question 20

What is CRD-4?

Answer 20

QD instruction lists
SWR operational checks

Question 21

What is CRD-5?

Answer 21

PCS information and sampling schedules

Question 22

What is CRD-6?

Answer 22

Special shutdown information

Question 23

What is the purpose of the CSAP?

Answer 23

Assures UFSAR and the TSR for operation are complied with.

Question 24

What is the Reactor Information Summary (RIS)?

Answer 24

Information for Reactor Startup

Question 25

What is the Support Information (SI)?

Answer 25

Core Physics data Fuel element performance Safety analysis evaluation

Question 26

Where is the CSAP located?

Answer 26

CRD-15A

Question 27

What mandates the Experiment Safety Assurance Package (ESAP)?

Answer 27

Mandated by TSR-186 AC 5.7.11

Question 28

What is the purpose of the CRD-15C Holddown Reactivity Margin Letter?

Answer 28

Assures compliance with TSR 4.5.7.1 "Calculate Holddown Reactivity Margin" for each outage

Question 29

What is the content of the CRD-15C Holddown Reactivity Margin Letter?

Answer 29

Contains limitations on the reactor core changes that ensure the holddown reactivity margin never becomes less than 6.7$ per the TSR requirements.

Question 30

What are the limitations for the Holddown Margin letter?

Answer 30

Must meet specific limitations: 1. Minimum of 5 safety rods fully inserted 2. Minimum of 7 pairs of OSCCs fully inserted 3. Minimum of 22 neck shims including reg rods fully inserted 4. IPT water level must be above the top of the active core

Question 31

When does Holddown Reactivity Margin Letter CRD-15C apply?

Answer 31

1. Pressurized Standby with two or more FEs in the core 2. Pressurized Shutdown with two or more FEs in the core 3. Depressurized Shutdown with two or more FEs in the core

Question 32

What is the Shift Staffing Requirement on the Reactor Top?

Answer 32

All activities requiring movement of fissile materials to be out of approved fuel storage shall be completed with at least two staff members trained in fissile material handling. In addition, the SS or designated alternate shall be present to direct fuel handling when more than two FEs are out of approved storage in the canal including canal transfer tube. Activities requiring movement of fissile material specimens <15 g U-235 shall be completed with at least one staff member trained in fissile material handling

Question 33

What is the Loop Control Area staffing requirement?

Answer 33

Two EOs required for operation of Bettis loops, gas loops and 2A. Both qualified to operate each other's station during steady state operations and may relieve each other. During modes other than reactor operation, remote monitoring of the loop control consoles may be accomplished from the RCR with Ops Manager approval provided an EO can respond as needed.

Question 34

What material is prohibited from Loops/PCS?

Answer 34

Mercury Aluminum Gold/Silver Low melting point metals Nickel bearing material Copper Halogens Sulfur Phosphorus

Question 35

What is the TSR requirement for Log Count Rate Instruments?

Answer 35

At least one LCRM in the RCR shall be OPERABLE with indication on scale and >2cps DURING: Pressurized Standby with two or more FEs in the core Pressurized Shutdown with two or more FEs in the core Depressurized Shutdown with two or more FEs in the core Startup until critical