REACTOR

Question 1

why does CVN 70 have a double loop reactor/ reboiler?

Answer 1

1) to prevent contamination from the ship from feeding into Reactor
2) to prevent radiological contamination from feeding into rest of ship

Question 2

Name a load off the reboiler

Answer 2

1. scullery steam
2. galley steam
3. potable water (hot)
4. Laundry steam

Question 3

locations of reboilers?

Answer 3

1. 1A shaft alley

2. 4B shaft alley

Question 4

5 things that come off the steam generator?

Answer 4

1. CTG’s
2. SSTG’s
3. CAT’s
4. ME
5. Reboiler

Question 5

what is DFT used for?

Answer 5

1. Deareate water to create purer water to minimize corrosion
2. net suction

Question 6

how does DFT deaerate water?

Answer 6

steam blanket on top of DFT water. water is then heated and gases are allowed to come out of solution.

Question 7

how much ater do the distilling tanks produce?

Answer 7

100,000/400,000 gallons total per day

Question 8

Heat cycle of a reactor?

Answer 8

Reactor—primary colant—S/G’s—-Staem loads (CTG’s, SSTG’s, CAT’s, ME)—DFT—-Main feed booster pumps—MFP’s—S/G’s

Question 9

Classify our reactors

Answer 9

A4W (aircraft carrier 4th generation designed by westinghouse)

Question 10

location of ME’s

Answer 10

1 & 4 MMR1

2 & 3 MMR2

Question 11

location of SSTG’s

Answer 11

1 & 2 MMR1

3 & 4 MMR 2

Question 12

Location of CTG’s

Answer 12

1 & 2 RAR1

3 & 4 RAR2

Question 13

Location of EDG’s

Answer 13

1 & 2 under Repair locker 2

3 & 4 AFT under supply berthing, under RX male berthing

Question 14

rating of CTG’s

Answer 14

4160 v, 8 MW, 1388 amps, 3 phase

Question 15

Rating of SSTG’s

Answer 15

4160 v, 8 MW,1388 amps, 3 phase, 60 hz

Question 16

difference between CTG’s and SSTG’s?

Answer 16

CTG- Variable frequency

SSTG’s- Constant freuency

Question 17

what is the source of emergency electrical power?

Answer 17

EDG’s

Question 18

Main purpose of an EDG?

Answer 18

to provide power to reactor fill pumps

Question 19

Secondary purpose of EDG’s?

Answer 19

to provide emergencypower to ship in case of loss of all AC

Question 20

purpose of the reactor fill pumps?

Answer 20

Fill core in case of coolant casualty

Question 21

rating for EDG’s?

Answer 21

4160 v, 2 MW, 1388 amps, 3 phase, 60 hz

Question 22

What type of fuel do the reactors use?

Answer 22

Enriched Uranium

Question 23

Explain the at sea line up for the electric plant?

Answer 23

all 4 SSTG’s powering ring bus

at sea—2 & 4 in parrallel on top half of ring bus and 1 & 3 in parrallel on bottom half of ring bus

Question 24

when do we set restricted maneuvering ?

Answer 24

1. GQ
2. man overboard
3. CO’s discretion
4. in restricted waters
5. pulling in and out of port
6. underway replenishment

Question 25

RO

Answer 25

CAPT BIERGUL

Question 26

ARO

Answer 26

CDR Chambers

Question 27

Reactor watch standers in DC Central?

Answer 27

EOOW, load dispatcher, water control watch

Question 28

who is the log recorder/phone talker?

Answer 28

junior most watch stander, comms and temperature

Question 29

who is the throttleman?

Answer 29

controls speed of main engines

Question 30

who is CRW?

Answer 30

Chief Reactor Watch--seniormost watch stander in RAR

Question 31

who is CMO?

Answer 31

Chief Machinery Officer--Seniormost watch stander in MMR

Question 32

Load dispatcher?

Answer 32

Safe operation of Electric Plants

Question 33

what does the switchgear operator do?

Answer 33

controls voltage output and frequency to SSTG' and CTG's

Question 34

responsiblities of water control watch?

Answer 34

monitors water inventory for ship and coordinates with CRW/CMO from each plant to maintain water levels at optimal capacities

Question 35

Principle assistants within reactor dept?

Answer 35

CRA-Chemical Radiological Assistant, RL div REA-Reactor Electrical Assistant, RE & RC div in RAR RMA-reactor mechanical assistant RM & RA div in MMR MPA-Main Propulsion Assistant, RP Div RMO-Reactor Maintenance Officer

Question 36

what does it mean for the reactor to be "shutdown"

Answer 36

rods are inserted but no heat is being produced

Question 37

how does nuclear fission produce energy?

Answer 37

neutron absorbed by uranium splits into neutrons, protons, and gamma's

Question 38

what is a simplified primary loop?

Answer 38

pump circulates RX to S/G to cool RX and heat water in S/G for steam

Question 39

Classify the distilling units

Answer 39

6 stage, flash type, LP, 100,000gpd

Question 40

Explain the in port line up for the electric plant

Answer 40

ring bus split wit FWD HVSP carrying 1 and 2 S groupsand AFT HVSP carrying 3 and 4 S groups

Question 41

why are 2 machines in parrallel in at sea line up?

Answer 41

to increase redundancy. if one fails the other can assume the load and prevent loss of power

Question 42

who is responsible to the load dispatcher?

Answer 42

Switchgear Operators