Containment Flashcards
Which ONE of the following parameters/conditions will cause an automatic Containment Isolation? A. Safety Injection Signal B. Containment High Pressure C. S/G Low Pressure D. Pressurizer High Pressure
B~ Containment High Pressure
During MODE 6 both Personnel Airlock Doors are open with the Equipment Hatch
closed. Which ONE of the following describes the required action and completion time
for this condition?
A. Line up containment purge fan, V-46, and place in service immediately.
B. Suspend core alterations and movement of irradiated fuel assemblies inside
containment immediately.
C. Line up containment purge fan, V-46, and place in service within 30 minutes.
D. Suspend core alterations and movement of irradiated fuel assemblies inside
containment within 30 minutes.
By’ Suspend core alterations and movement of irradiated fuel assemblies inside
The plant is operating at full power with no equipment degraded or out of service. A
spurious Containment High Radiation signal causes a Containment Isolation. The
NCO then reports to the Control Room Supervisor that CV-1 065, CWRT Vent Isolation,
did not close as required. If CV-1 065 cannot be repaired in ‘ then the
penetration must be isolated by failing closed CV-1064.
A. 1 hour
B. 4 hours
C. 24 hours
D. 72 hours
B. 4 hours
The Design Basis of the Containment Building is that it is capable of _
DBD 2.09
Answer: withstanding the internal pressure applied (0.5 pts) as a result of a Design Basis Accident (DBA) (0.5 pts).
Which one of the following describes the interlock features on the Personnel Air Lock
and Escape Air Lock doors that ensure Containment integrity?
A. The Personnel Air Lock doors cannot be opened at the same time as the Escape
Air Lock doors.
B. Both doors on the Personnel Air Lock and the Escape Air Lock close and lock on a
Containment High Pressure (CHP) or Containment High Radiation (CHR) condition.
C. A timer ensures that the Personnel Air Lock and the Escape Air Lock inner and
outer doors can be opened at the same time ONLY for a maximum of 30 seconds.
D. The inner door cannot be opened at the same time as the outer door for the
Personnel Air Lock and Escape Air Lock.
Di The inner door cannot be opened at the same time as the outer door for the
Personnel Air Lock and Escape Air Lock.
The Containment Building is designed to allow a leak rate of no more than 0.1
weight-percent/day at a design pressure of and a design temperature of
A. 4.0 psig; 150F
B. 40 psig, 200F.
C. 55 psig, 283F
D. 70 psig, 283F
C~ 55 psig, 283F
Which one of the following describes interlock features on the Personnel Air Lock and
Escape Air Lock doors which are designed to ensure Containment integrity?
A. Personnel Air Lock doors cannot be opened at the same time as Escape Air Lock
doors.
B. Both doors on the Personnel Air Lock and the Escape Air Lock close and lock on a
Containment High Pressure (CHP) or Containment High Radiation (CHR) condition.
C. A timer ensures that the Personnel Air Lock and the Escape Air Lock inner and
outer doors can be opened at the same time ONLY for a maximum of 30 seconds.
D. The inner door cannot be opened at the same time as the outer door for the
Personnel Air Lock and also for the Escape Air Lock.
D~ The inner door cannot be opened at the same time as the outer door for the
Personnel Air Lock and also for the Escape Air Lock.
The Containment Building is designed to allow a leak rate of no more than at a
design pressure of and a design temperature of _
A. .1% per day 4.0 psig 200F
B. .1% weight per day 40 psig 200F
C. .1% per day 55 psig 283F
D. .1% per day 70 psig 283F
C. .1% per day 55 psig 283F
The following plant conditions exist inside of Containment:
A Large Break LOCA has occurred
PCS pressure is 55 psia
Containment Pressure is 40 psig and slowly DECREASING
One Containment Spray Pump is running
Both Low Pressure SI pumps are running
Both High Pressure SI pumps are running
If the correct amount of Trisodium Phosphate (TSP) is located inside of containment
how will this effect the post LOCA containment environment and at what containment
pressure can Containment Spray (CS) be secured per EOP-4.0, Loss of Coolant
Accident Recovery?
A. The TSP will maintain the Containment Sump water pH between 7-8 to prevent
stress corrosion cracking of stainless steel components, and CS can be secured at
less than 4 psig containment pressure
B. The TSP will maintain the Containment Sump water pH between 7-9 to remain
within the assumptions of the analysis for post LOCA Hydrogen concentration, and
CS can be secured at less than 4 psig containment pressure
C. The TSP will maintain the Containment Sump water pH between 7-8 to maintain
iodine released from fuel failures in solution and out of the containment
atmosphere, and CS may be secured at less than 3 psig containment pressure
D. The TSP will maintain the Containment Sump water pH between 7-9 which
prevents stress corrosion cracking of stainless steel components, and CS may be
secured at less than 3 psig containment pressure
C. The TSP will maintain the Containment Sump water pH between 7-8 to maintain
iodine released from fuel failures in solution and out of the containment
For each of the following valves:
CV-0501, ‘B’ S/G MSIV
• CV-0701, ‘A’ S/G Main Feed Reg Valve
• CV-091O, CCW to Containment
Assuming all the above valves were initially open, which of the following describes how they
will respond (if at all) to a Right Channel Containment Isolation Actuation signal generated from
Containment High Pressure?
CV-0501 CV 0701 CV 0910 A Stays open Closes Stays open B. Closes Stays open Closes C. Closes Closes Closes D. Stays open Closes Stays open
B. Closes Stays open Closes
