FHS

Question 1

The fuel storage and handling areas are designed to meet what major criteria?

Answer 1

• Minimize personnel radiation exposure.
• Maintain a coolable geometry.
• Prevent criticality.
• Minimize contamination of surfaces exposed to atmosphere.

Question 2

The Spent Fuel Pool is designed to ensure that Keff stays below what value if fully flooded with unborated water (RN assured make-up)?

Answer 2

Keff < 1.0

Question 3

The Spent Fuel Pool is designed to ensure that Keff stays below what value if flooded with water borated to a minimum of 200 ppm?

Answer 3

Keff < 0.95

Question 4

The New Fuel Storage Vault is designed to ensure a maximum Keff of what?

Answer 4

• Less than or equal to .95 if fully flooded with unborated water.
• Less than or equal to .98 with area flooded with firefighting foam.

Question 5

What occurs on a Trip 2 on 1EMF-15/2EMF-4 (Fuel Bridge Area Monitor)?

Answer 5

Prevents New Fuel elevator from moving in up direction

Question 6

What occurs on a Trip 2 on 1EMF-17/2EMF-2 (Reactor Building Refueling Bridge Monitors)?

Answer 6

• Sounds containment evacuation alarm if < P-6
• Containment evacuation alarm is blocked when both source range high flux at shutdown alarms are blocked

Question 7

(SFP & RB) The Gripper tube must be at what position to allow bridge or trolley to operate?

Answer 7

• Full up
  or
• Up disengaged position

Question 8

(SFP) Bridge and trolley are electronically interlocked to limit the mast to a path of travel that prevents collision with what?

Answer 8

Spent fuel pit walls/lights.

Question 9

(SFP&RB) To enable operation of the hoist in the up or down direction, the gripper must be in which condition?

Answer 9

• Engaged
  or
• Disengaged

Question 10

(SFP) To operate the gripper (Grab or Release a fuel assembly), weight indicator must read less than what?

Answer 10

1200 lbs

Question 11

(SFP&RB) Hoist will not operate in the up direction if there is an overload condition of what?

Answer 11

• (2350 lbs West. Or 2460 lbs FCF) on weight indicator
  or
• Mechanical overload switch open at 2700 lbs.

Question 12

(SFP&RB)Hoist will not operate in the up direction if load cell indicates greater than what and gripper is disengaged?

Answer 12

1200 lbs

Question 13

(SFP&RB) Hoist will not operate in the down direction if what condition exists (1780 lbs West. Or 1850 lbs B&W)?

Answer 13

• Under load
  ** This interlock will not be operable within 1” of the bottom of rack or new fuel elevator. This prevents setting the full weight of one fuel assembly on top of another. There is NO indication for this condition on the SFP crane.

Question 14

(SFP) What condition will prevent the Hoist from operating in the down direction? (Less than 500 lbs. on weight indicator).

Answer 14

• Slack cable condition

Question 15

(SFP) What condition will prevent the East Auxiliary Hoist (2 ton) from operating in the up direction?

Answer 15

• Overload condition. (3000 lbs)

Question 16

(SFP &RB) In what mode is the Bridge, Trolley, and fuel hoist mutually interlocked such that only one drive is operable at a time?

Answer 16

Manual mode

Question 17

(RB) To enable operation of the fuel gripper solenoid there must be indication from the load cell that a low load condition of what exists?

Answer 17

less than 500 lbs

Question 18

What two conditions will allow the Interlock Bypass Switches to be used?

Answer 18

Approved Procedure says to
or
Permission is obtained from the Refueling SRO

Question 19

What are the required actions of LCO 3.9.1 (Boron Concentration) if Boron concentration not within limit of the COLR?

Answer 19

• Immediately Suspend CORE ALTERATIONS
  AND
• Immediately Suspend positive reactivity additions
  AND
• Immediately Initiate action to restore boron concentration to within limit

Question 20

What is the Bases for the required boron concentration in LCO 3.9.1 (Boron Concentration)?

Answer 20

Ensure that the keff of the core will remain less than or equal to 0.95 during the refueling operation. Hence, at least a 5% delta k/k margin of safety is established during refueling.

Question 21

What is the Basis for the great than or equal to 23 feet water level in the Refueling cavity per LCO 3.9-6 Refueling Cavity Water Level?

Answer 21

Retain iodine fission product activity in the water in the event of a fuel handling accident

Question 22

What are the required actions of LCO 3.9-6 Refueling Cavity Water Level if Refueling cavity water level not within limit?

Answer 22

• Immediately Suspend CORE ALTERATIONS.
  AND
• Immediately Suspend movement of irradiated fuel assemblies within containment.

Question 23

Per SLC 16.9-17 Refueling Operations - Decay Time, how long must the reactor be subcritical before movement of irradiated fuel is allowed?

Answer 23

Great than or equal to 72 hours

Question 24

What is the bases for waiting greater than or equal to 72 hours prior to moving irradiated fuel per SLC 16.9-17 Refueling Operations - Decay Time?

Answer 24

Ensures that sufficient time has elapsed to allow the radioactive decay of the short-lived fission products

Question 25

What is the mode of applicability for SLC 16.9-21 Refueling Operations - Storage Pool Water Level?

Answer 25

Whenever irradiated fuel assemblies are in the storage pool