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Pump Room > Pumproom > Flashcards

Pumproom Flashcards

1
Q

What’s the FSII vol% of JP-5

A

0.07 -0.10% is the specification limit but the receipt limit is 0.06% to 0.15%……MOST IMPORTANT NO LOWER THAN .03 for FSII as per CVN-71

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2
Q

What’s the purpose of the JAM function on the service pump?

A

Cuts off the service pump if it doesn’t reach the desired current for the motor and can be set to 150% -400% or 0.1 -2.5 seconds when it times out the AC motor controller.

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5
Q

Mid ship X conn starboard side and AFS No.11

A

ACFT elevator 2-133-5

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6
Q

What’s Vac and Vdc stand for?

A

Alternating current and direct current

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7
Q

Name all the contam tanks for 2 pump,3pump and cargo.

A

44-3,44-4,205-7,205-8,140-2

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8
Q

AFS NO.6

A

Male head 2-64-6-L

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10
Q

What type of unit transfer pump do we have ?

A

Unit E-4641 transfer pump

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12
Q

What’s the theory of operation for the rotary vane pump?

A

The rapid rotation of the shaft and rotor forces the vanes in sliding contact with the cylinder bore by centrifugal forces and by push rods. The passage of vanes through the lower portion of the cylinder bore draws fluid into the pump at the same time forces it out the discharge port rotary vane pumps are positive displacement pumps this mean they will pump air which creates a vacuum causing liquid to be pulled into the suction side of the pump.

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13
Q

AFS No. 8

A

Aft mess decks 2-148-0-L

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17
Q

At what psi does the pressure control switch (PCS) open and close

A

Opens at 20 psi and closes at 35 psi

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18
Q

What’s the purpose of a high power turn?

A

To burn off fuel or for testing.

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19
Q

What’s the suction lift on the transfer pump ?

A

15 inch suction lift HG

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21
Q

What the max HP and brake HP for the transfer pump ?

A

25 max load horsepower and brake horse power is 14.2

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23
Q

What are the 6 parts of a Falk type steel coupling?

A
  1. seal rings
  2. cover halves
  3. hubs
  4. grid members
  5. gasket
  6. Alemite grease fitting
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25
Q

How much does the transfer pump weigh?

A

2337 pounds

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27
Q

What does VPI stand for?

A

Valve placement indicator

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28
Q

What is the theory of operation for the purifiers?

A

Fuel goes through the inlet of the inlet/outlet housing goes through the feed tube assembly then goes down the tubular shaft and then falls down on to the spindle cap nut and gets disbursed outward to the distributor and all the sediments get spun out to the bowl wall where it sticks and creates a layer of cake and then fuel gets sucked back up through the distribution holes by the pairing disk because it makes a centripetal pump but on its way back up it hits the discharge ring which separates the fuel from the water because fuel is lighter than water it goes up around the feed tube assembly and sucked back up into the outlet of the inlet/outlet housing and the water goes do through the water discharge chamber.

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29
Q

AFS No 12

A

Reactor head 2-225-4-L

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30
Q

How high does the non vortex bell mouth and splash plate sit from the bottom of the tank?

A

6-24 inches off the bottom of the tank

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31
Q

Station 5 valve

A

G4 male berthing 2-64-1-L

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32
Q

What is S-15

A

Grease ball bearings ⚽️

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34
Q

Where is station 13 valve?

A

P-way(the one on the way to QA) 2-190-3-L

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36
Q

What is the grade and weight of the purifier motor oil?

A

80 grade 90 heavyweight as per purifier tech manual

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37
Q

How many elements in the prefilter and what are they made out of and how tall are they and what is the diameter?

A

5 elements in the pre filter made out of stainless steel and stand on 18 inch stand pipes and 6 1/10’s of an inch in diameter

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39
Q

AFS No 14

A

P-way 2-88-2-L

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40
Q

What is jp-5 made out of

A

100% Karosene and 0.04% naphthalene

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42
Q

Jet test supply

A

Reactor berthing 3-225-0-L

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43
Q

Station 9 valve

A

Urinalysis office 2-128-1-L

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44
Q

Coupling ring is NOT to exceed what degree and inches?

A

20-25 degrees or 4 1/2 inches. Cause of this is excessive wear or corrosion.

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48
Q

What’s the approx capacity of jp-5 CVN-71 is able to hold?

A

3 1/4 million gallons

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50
Q

What does the timing relay do for the service pump?

A

It times out at 30(+/-5 seconds) it shuts down the pump if it does operate properly after the Pressure control switch closes.

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51
Q

How big is a spacer on the intermediate disks

A

0.050

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52
Q

How big is a micron ?

A

1/1000 of a millimeter

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53
Q

AFS No 10 and AFS No 18

A

P-way 2-190-4-L

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55
Q

On a motor stripping pump and transfer pump how many vanes and pushrods?

A

6 vanes

3 pushrods

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56
Q

How do they test for FSII

A

They put fuel in a Ungraduated then drop a thermohydrometer in it. And look at API to figure out the conversions for FSII

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58
Q

Mid ship X conn port

A

Male berthing 2-143-2-L

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61
Q

How many turns for the spring loaded T-handle into the pairing disk?

A

3 to 3 1/2 quarter turns

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63
Q

R-37

A

Clean and inspect purifiers

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64
Q

What are the four types of tanks?

A

Double bottoms, deep center line, wing tanks and peak tanks.

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65
Q

What’s another name for JP-5?

A

F-44 as per NATO

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67
Q

AFS No. 6A

A

Disbursing p-way 2-113-2-L

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69
Q

Where can you strip into?

A

The main
Overboard
Stowage
Contam

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72
Q

Name all the parts and assemblies of the purifier (30)

A 
Inlet and outlet connections 
Inlet and outlet housing 
Spring loaded T-handle with regulating tube(feed tube assembly)
Bowl cover 
Water observation port
Bowl top
Pairing disk 
Discharge ring 
Coupling nut 
Coupling ring 
Top disk 
Intermediate disks 
Tubular shaft
Spindle cap nut
Distributor 
Bowl casing 
Bowl assembly 
Cover clamps 
Lock screw plugs 
Worm wheel gear and drive assembly and worm wheel quill
Oil fill cap /w dipstick
E-brake 
Speed indicator cap 
Motor oil sight glass 
Spindle assembly 
80 grade 90 heavyweight motor oil
Water discharge chamber 
A/c motor controller
Bowl drain connection 
Frame
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73
Q

Station 15 valve.

A

Decon head 2-230-1-L

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74
Q

Whats the purpose of a low power turn?

A

Low power turns are for maintenance

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75
Q

What are the 3 sizes for limitorques

A

130,150 and 550

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76
Q

Who makes or transfer pump ?

A

A dover resources co.

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77
Q

S-11

A

Change oil for purifiers

79
Q

Each pump is submersible to how many feet?

A

15 feet

80
Q

What are the stationary wearing rings attached to ?

A

The pump casing

81
Q

What is the motor speed and pump speed? For transfer pump

A

1800 rpm for motor and 337 rpm for pump

82
Q

What is the purpose of the gland plates?

A

To compress the mechanical seal.

84
Q

What are the designated defuel tanks for 3 pump?

A

200-3 and 200-4

85
Q

All the parts of a service pump from end to motor side

A

Adjusting screw with bearing cap with grease fitting and grease relief
Bearing brackets, with ball bearings on the inside. Also a vibration indicator on top
Water slinger
Gland plate
Durametallic Mechanical seal on the inside of the upper and lower casing.
Shaft sleeve
Station wearing ring
Rotating wearing ring
Impeller
Rotating wearing ring
Station wearing ring
Shaft sleeve
Stuffing box and throat bushing
Mechanical seal on the inside of the upper and lower casing
Gland plate
Water slinger
Bearing bracket with bearings
Shaft sleeve nut then a bearing adapter and then a falk type steel flex coupling with a red terricata coupling guard and then a/c motor controller

86
Q

How far off the bottom does a storage stripping tail pipe sit

A

1 1/2 inch off the bottom of the tank

89
Q

What are the two types of swing check valves?

A

Wafer check valve and one way check valve

93
Q

Starboard side X-conn fwd and aft leg valves

A

Is in the filters 1 and 3

94
Q

What does aux fuel?

A

Provides fuel to EDG’s (emergency diesel generators) auxiliary boilers , small boat filling stations or combat vehicle/support equipment filling station

95
Q

What is the difference between wafer check and one way check

A

One way check as one door 🚪 to allow fuel to go through and only opens one way as for wafer check valve it has two doors split down the middle to allow fuel to pass.

96
Q

What’s the maximum deflection for the timing belt on the transfer pump?

A

MAXIMUM is 1 inch even at 1 inch of deflection it should probably be replaced due to loss of tension and wear

97
Q

What is most of the piping made out of and why?

A

Copper nickel due to its resistance to rust and corrode.

98
Q

How do you reset a limitorque?

A

Push the grey button on the back and hold for 3-5 seconds and let console op know when it’s finished so they can test it.

99
Q

What’s the boiling point of JP-5 ?

A

280 - 572 F

101
Q

AFS No.16

A

Male berthing 2-146-3-L

103
Q

Port side X-conn fwd and aft leg valves

A

Is in 2 and 4 filter

108
Q

U-1

A

Rachet hook for purifiers

109
Q

Where can you strip from?

A

Stowage
Defuel
Contam
Sump

110
Q

X-75 test

A

Press the button on the portable float control valve which forces the karosene ball upwards which shuts the modified CLA Val and makes a (fizzz) sound and then ball floats back down and opens it back up

111
Q

Rex chain coupling parts (13)

A
  1. Coupling cover seal ring
  2. Coupling half
  3. Socket head set screw
  4. Connection pin
  5. Chain
  6. Cotter key
  7. Lube hole screw
  8. Plastic coupling cover
  9. Cover screw
  10. Coupling cover gasket
  11. Coupling half
  12. Coupling cover seal ring
  13. Locating pin
112
Q

Love joy coupling (5)

A
  1. Coupling half
  2. Rubber spider (neofrean)
  3. Coupling half
  4. Socket head set screw
  5. Shaft key
113
Q

What are the sump TLI’s for 2 pump and 3 pump

A

64-2 and 197-2

114
Q

What are all the types of valves? (7)

A 
Hoke valve 
Butterfly valve 
One way check waffer valve
One way check valve (swing check valve) 
Globe valve 
Modified glove valve 
Gate valve
115
Q

How does a hoke valve turn?

A

Counter clockwise

116
Q

Where is Xfer to Serv valve in 2 pump

A

Between service pump 1 and 2

117
Q

Where is Serv to Xfer in 2 pump?

A

Between 2 and 3 transfer pump

118
Q

Difference between simplex and compound pressure gauge? And what’s the 3rd pressure gauge.

A

Compound and go below zero and measure vacuum while simplex only measure pressure output. Differential gauge measures the difference in output between the 2.

119
Q

Max differential between pre filter and reclaim

A

20 psi

120
Q

Service pump approx weight and motor weight .

A

3700 approx weight and motor weighs 2140 pounds

121
Q

Build transfer pump (top-down) (7)

A
  1. Motor
  2. Motor sprocket
  3. Guard door
  4. Back belt guard
  5. Belt tension assembly
  6. Timing belt
  7. Pump sprocket
122
Q

Transfer pump build (left to right)(24)

A 
Locknut 
Stud 
Oil seal
Grease fitting 
Grease relief 
Inboard bearing cover
Bearing cover gasket 
Bearing locknut 
Bearing locknut washer
Bearing
Locknut 
Stud
Drain plug
O-ring
Inboard head
John crane mechanical seal
O-ring
Disc
Casing
Liner
Shaft key
Rotary shaft assembly
Pushrod(brass)
Vanes(palamite)
125
Q

What does specific gravity test do?

A

Test relative density

127
Q

Station 7 valve

A

MWR void 2-88-3-L

128
Q

AFS No.4

A

2-34-2-L p-way

129
Q

What are the rotating wearing rings attached to ?

A

The impeller

130
Q

What’s another name for a one way check valve?

A

Swing check valve

133
Q

Wet weight and dry weight of reclaim

A

Wet weight 2800 lbs

Dry weight 1200 lbs

135
Q

Valves for motor stripping?

A

Suction, throttle and discharge

136
Q

AFS No.2

A

Admin female head 2-17-4-L

138
Q

What type of strainer is on the inlet of the motor stripping pump

A

40 mesh basket strainer

139
Q

Where is the valve for station 1 and 3 second deck alignment

A

Female berthing up fwd starboard side 2-17-0-L,2-25-0-L

141
Q

Motor stripping pump specs

A

Rotary vane/ positive displacement.
50 GPM/ 50 psi pressure relief at 62 1/2.
Pump rotates at 640 rpm while the motor rotates at 1750. 3 to 1 ratio 😉

147
Q

What does PSIG mean?

A

Pounds per square inch gauge

148
Q

How do you reset a target rock?

A

Put valve in the fully own position and then close it and then set it in the middle.

150
Q

How many fluid oz does our glass bottles hold?

A

32 fl oz

152
Q

What is pS/m

A

Picosalinity or picosiemen is the measurement of how conductive a liquid is in meters.

155
Q

Station 2 and 4 for second deck alignment valve

A

2 is admin female head 2-17-4-L and 4 is in the p-way 2-34-2-L

156
Q

What is U-2

A

Test pump discharge pressure relief

157
Q

What is the purpose of the motor stripping pump?

A

To remove water and sediment

160
Q

When is a overhaul done on the transfer pump?

A

After 3000 hours of operation

161
Q

What does hydrocarbon mean?

A

Hydrogen carbon

164
Q

U-5

A

Compression for for purifiers

166
Q

What does PSIG mean?

A

Pounds per square inch gauge

167
Q

How do they test for viscosity

A

They put 60 cubic centimeters of liquid into a viscometer at 100F.

168
Q

How do they do a specific gravity test?

A

They put fuel in a graduated cylinder and put a thermohydrometer in the graduated cylinder to determine the API (American Petroleum Institute)and weight of the fuel. Sizes for the discharge ring range from 200-250 mm as per ship range from 220 to 250 mm. Specific gravity tests are done regularly when changing region or climate.

172
Q

What does a slash plate and a non vortex bell mouth fitting?

A

A splash plate disperses the fuel like a fan into the tank and the fitting helps it not create a current in the tank.

177
Q

What does JP-5 stand for?

A

Jet propellant as per QA tech manual

178
Q

What does HG stand for?

A

Hydrogyrum

179
Q

What is S-36

A

Inspect oil gear reducer

181
Q

What stops splashing within the tank?

A

The baffles (the walls inside the tank)

183
Q

What is “palamite”?

A

Fuel resistant wood

189
Q

What does FSII stand for?

A

Fuel system Icing inhibitors

190
Q

What are the Volts, hertz and phases for the service and transfer pump

A

440 volts at 60 hertz 3 phases

193
Q

What does SSU stand for?

A

Saybolt seconds universal

195
Q

What type of TLI’s do we have on board?

A

Vega pulse

196
Q

What test do they do for figuring out the size of the discharge ring ?

A

Specific gravity test

202
Q

A-2

A

Inspect timing belt and motor sprockets for the transfer pump

204
Q

What is A-12?

A

Inspect love joy coupling

205
Q

What is A-29?

A

Replace oil gear reducer

213
Q

Reclaim filter GPM and PSI

A

300 GPM at 125 PSI

223
Q

Flood and Drain manifold and what do the colors mean?

A

Purple- stripping
Black/green-ballast
Red-de ballast

Pump Room (1 decks)

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