ILT Exam 7 Material + Review Content

Question 1

What is the heating supply to the 17 HP heaters?

Answer 1

2nd stage reheater drain tank and 4th stage HP extraction steam

Question 2

What is the heating supply to the 16 LP heaters?

Answer 2

17 heaters’ drains and 6th stage HP extraction steam

Question 3

What is the heating supply to the 15 LP heaters?

Answer 3

6 heaters’ drains, 8th stage HP extraction steam and, 1st stage reheater drain tank

Question 4

What are the inputs into the HDT?

Answer 4

15 heater drain cooler, MSR shell drain tank

Question 5

What is the heating supply to the 14 LP heaters?

Answer 5

2nd stage LP extraction steam

Question 6

What is the heating supply to the 13 LP heaters?

Answer 6

14 heaters’ drains, 4th stage LP extraction steam

Question 7

What is the heating supply to the 12 LP heaters?

Answer 7

13 heaters’ drains, 6th stage LP extraction steam

Question 8

What is the heating supply to the 11 LP heaters?

Answer 8

8th and 9th stage LP extraction steam

Question 9

What are the inputs to the ES flash tank?

Answer 9

12 LP heater’s drains, 11 LP heater’s drains,

Question 10

Where does the ES flash tank drain to?

Answer 10

11 drain cooler

Question 11

What is the capacity of the HDPs?

Answer 11

Each pump is 50% capacity and delivers 6100 gpm

Question 12

What are the power supplies to the HDPs?

Answer 12

A&C from 157, B from 156

Question 13

Which non-return check valves do NOT close on a Hi-2 in the downstream heater?

Answer 13

1st stage reheater drain tank outlet, 2nd stage reheater drain tank outlet, MSR shell drain tank inlet & outlet, 4th stage HP steam to MSR

Question 14

When do the ES spill valves open?

Answer 14

On a turbine trip, Hi-2 on the associated heater, Hi-1 on 12-14 heaters (the spill valve acts as the low point drain on these lines.)

Question 15

What is the interlock between inlet and outlet valve of a LP or HP heater string?

Answer 15

The inlet valve will start to open when the outlet valve is 95% open. Conversely the outlet will start to close when the inlet is 95% closed. All this ensures the tube side does not get pressurized.

Question 16

What does the TDFW speed controller use as a demand signal at low powers?

Question 17

What does the TDFWP speed controller use as a demand signal at high powers?

Question 18

What do the EH controllers for TDFWPs do?

Answer 18

Convert speed demand to a governor valve demand signal

Question 19

What are the TDFWP trip signals?

Question 20

What is the design basis for the FW Isolation?

Question 21

What is normal EH header pressure?

Answer 21

1900 - 2000 psig

Question 22

What is the critical speed range of the TDFWP?

Answer 22

2000 - 3000 rpm

Question 23

When does the speed limiter lower speed on the TDFWP?

Answer 23

5550 rpm

Question 24

When does the TDFWP trip on overspeed?

Answer 24

5720 rpm

Question 25

What are the steam sources for the TDFWPs?

Answer 25

Main steam up until 45%. 'A' MSR outlet opens at 25%

Question 26

What are the 2 modes of control on FWP?

Question 27

How does FW016 fail on a loss of air?

Answer 27

Fails As-Is on total or partial loss of air

Question 28

What are the interlocks for starting the TDFWP turning gear?

Question 29

What is the power supply to the B FWP recirc valve?

Answer 29

DC 114

Question 30

What is the power supply to the A/C FWP recircs?

Answer 30

DC 113

Question 31

What is the time limit and reasoning for isolating AF with a faulted SG inside containment?

Answer 31

30 minutes; limits containment pressure rise

Question 32

What is the time limit and reasoning for isolating AF with a faulted SG outside containment?

Answer 32

20 minutes; Maintain instrumentation in MSIV rooms

Question 33

What is the time limit and reasoning for isolating AF with a ruptured SG?

Answer 33

9 minutes; prevent SG overfill

Question 34

On an AF initiation, why must SD valves be closed and when shall that action be permissable?

Answer 34

They must be closed to ensure that a total of >= 500 gpm AF flow gets to the SG. The RO must manually close SD valves if SI conditions do NOT exist.

Question 35

At what pressure do the AF pumps swap suction from CST to SX? What valves automatically realign?

Answer 35

18.1 psia; CST recirc valve AF002A/B close, SX recirc valve AF024 will open

Question 36

What are the MDFWP trips?

Answer 36

PPLLUGSM: P-14, Phase OC, Low lube oil (2/2) 10 psig, Low suction pressure (2/2) 282 psig, UV on bus 156, Ground OC, SI, Manual

Question 37

What are the MDFWP starting interlocks?

Answer 37

At least one CD/CB running, Discharge valve FW002A open, Recirc iso valve FW027A open, Suction valve CB005A open, Lube oil pressure 15 psig and rising (oil pressure UP light LIT on PM04J)

Question 38

How does the auto runback feature work?

Question 39

What are the permissives to latch/rest TDFWP?

Question 40

What are the trips for the TDFWPs?l

Question 41

What are the Main Generator trips?