REACTOR Flashcards

1
Q

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

A

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

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2
Q

Name a load off the reboiler

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

locations of reboilers?

A
  1. 1A shaft alley

2. 4B shaft alley

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4
Q

5 things that come off the steam generator?

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

what is DFT used for?

A
  1. Deareate water to create purer water to minimize corrosion
  2. net suction
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6
Q

how does DFT deaerate water?

A

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

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7
Q

how much ater do the distilling tanks produce?

A

100,000/400,000 gallons total per day

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8
Q

Heat cycle of a reactor?

A

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

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9
Q

Classify our reactors

A

A4W (aircraft carrier 4th generation designed by westinghouse)

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10
Q

location of ME’s

A

1 & 4 MMR1

2 & 3 MMR2

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11
Q

location of SSTG’s

A

1 & 2 MMR1

3 & 4 MMR 2

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12
Q

Location of CTG’s

A

1 & 2 RAR1

3 & 4 RAR2

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13
Q

Location of EDG’s

A

1 & 2 under Repair locker 2

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

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14
Q

rating of CTG’s

A

4160 v, 8 MW, 1388 amps, 3 phase

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15
Q

Rating of SSTG’s

A

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

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16
Q

difference between CTG’s and SSTG’s?

A

CTG- Variable frequency

SSTG’s- Constant freuency

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17
Q

what is the source of emergency electrical power?

A

EDG’s

18
Q

Main purpose of an EDG?

A

to provide power to reactor fill pumps

19
Q

Secondary purpose of EDG’s?

A

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

20
Q

purpose of the reactor fill pumps?

A

Fill core in case of coolant casualty

21
Q

rating for EDG’s?

A

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

22
Q

What type of fuel do the reactors use?

A

Enriched Uranium

23
Q

Explain the at sea line up for the electric plant?

A

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

24
Q

when do we set restricted maneuvering ?

A
  1. GQ
  2. man overboard
  3. CO’s discretion
  4. in restricted waters
  5. pulling in and out of port
  6. underway replenishment
25
Q

RO

A

CAPT BIERGUL

26
Q

ARO

A

CDR Chambers

27
Q

Reactor watch standers in DC Central?

A

EOOW, load dispatcher, water control watch

28
Q

who is the log recorder/phone talker?

A

junior most watch stander, comms and temperature

29
Q

who is the throttleman?

A

controls speed of main engines

30
Q

who is CRW?

A

Chief Reactor Watch–seniormost watch stander in RAR

31
Q

who is CMO?

A

Chief Machinery Officer–Seniormost watch stander in MMR

32
Q

Load dispatcher?

A

Safe operation of Electric Plants

33
Q

what does the switchgear operator do?

A

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

34
Q

responsiblities of water control watch?

A

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

35
Q

Principle assistants within reactor dept?

A

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

36
Q

what does it mean for the reactor to be “shutdown”

A

rods are inserted but no heat is being produced

37
Q

how does nuclear fission produce energy?

A

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

38
Q

what is a simplified primary loop?

A

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

39
Q

Classify the distilling units

A

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

40
Q

Explain the in port line up for the electric plant

A

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

41
Q

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

A

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

42
Q

who is responsible to the load dispatcher?

A

Switchgear Operators