SPDS

Question 1

(T/F): The EXECUTE key on the SPDS keyboard acts as an ENTER key on a normal computer keyboard.

Answer 1

True

Question 2

Unavailability of the SPDS is interpreted as:

Answer 2

Inability to restart either CPU after a failure of both for > 1 hour.

Question 3

During a transient, an alarm condition was indicated on the PSHT display. The alarm cleared before the operators had time to acknowledge it. How can the operators use SPDS to determine what parameter caused the alarm?

Answer 3

Check the alarm messages on the CRT.

Question 4

What effect would a loss of the “A” SPDS CPU have on the SPDS capability for the U1 Control Room?

Answer 4

The “B” CPU is still available, therefore all SPDS data is available to U1.

Question 5

The SPDS graphics CRT’s display on C09 is upside down. The “A” SPDS CPU
selected on the operator’s console. What would you suggest to the CRS to correct
the C09 display?

Answer 5

Use the “O2” function via the keyboard to restart the “A” CPU.

Question 6

Of the six primary SPDS displays, which display is the best to determine if natural
circulation flow exists?

Answer 6

PSHT

Question 7

The control room is always on the primary circuit for the plant monitoring system. If the backup system fails, the only indication the control room operators will see is:

Answer 7

The “Primary/Backup” display message at the bottom of the CRT will read “Primary”.

Question 8

What are the six primary SPDS displays?

Answer 8

• ATOG
  
  • RHO
  • PSHT
  • SGTR
  • RB
  • RCSI

Question 9

On a P&ID, how are transmitter outputs to SPDS identified?

Answer 9

With the letters “SPDS”.

Question 10

List four different locations that you can access SPDS displays:

Answer 10

Unit 1 Control Room
Unit 2 Control Room
TSC
EOF

Question 11

Which SPDS display could be used for monitoring the RB sump level during a loss of subcooled margin?

Answer 11

RCSI