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Standard Navy piping for freshwater and seawater
Non-Ferrous
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2 Purposes of lagging
- Insulation (efficiency)
- Safety concerns
- Prevents sweating
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Red and Green Pipe
AFFF mixed solution
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How do we classify pumps?
- Type of movement
- Pos Displacement vs Non Displacement
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What are check valves for?
- Making fluid flow one way only
- (They're powered by the fluid inside the pipe)
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What makes conductors conduct?
Excess free electrons
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Navy Standard Electrical Power Ratings
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Home Standard Power Rating
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Combat Systems Power Ratings
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Are navy systems ungrounded or grounded? Why?
Ungrounded, for reliability
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3 kinds or prime movers for electrical generators
- Steam Turbine
- Gas Turbine
- Diesel
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What does the EDORM cover?
Plant operation, procedures, organization
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Responsibility of the EOOW?
Safe and proper operation of the plant
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5 CO Approval Items
- Starting/Stopping the plant
- Plant configuration change
- Battle Override
- Ballast/Deballast
- EOSS Deviation
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Engineering Log has
Everything that happened in the plant that day
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Min/Max characteristics of eyewash station
10 secs away/<100 ft away/close to hazard
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Requirements for Audiograms?
- Entering the NAVY
- Exiting the NAVY
- Annually
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dB reqs for single earpro
- 84+ dB is Hazardous, reqs single earpro
- >103 dB requires double earpro if continuous
- 140dB impact reqs single earpro (guns)
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Symptoms of heat exhaustion
- Pale skin
- Dilate pupils
- Normal Blood Pressure
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When are you required to have 4 tagout signatures?
Divers & Shipyard Repair
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When do you need CO permission to tag out a system or equipment?
Single valve to sea
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Tag out is designed to prevent/mitigate operation of equipment that is
- Undergoing Mx
- Behaving abnormally
- Unreliable
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Six Classifications of a MRG set
- 1. Dual in/Single Out
- 2. Double vs Single Reduction
- 3. Double Helical
- 4. Locked Train
- 5. Articulated (Flex)
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Four kinds of bearings on the main props shaft
- Thrust
- Line Shaft
- Stern Tube
- Strut
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What lubes the stern tube and strut bearings?
Seawater
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What is TEPP2190 used for
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How is the MRG lube oil strained?
Magnets!
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What has the capacity for online lube oil purification? How does this change lube oil testing?
- MRG
- Only 1 test: Clear&Bright
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Why do we heat fuel oil before transferring?
- To purify
- To combust more easily
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Other than clear and bright test, what other shipboard tests are conducted on fuel oil?
- Specific Gravity (Density)
- Flashpoint
- BS & W
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NAVY Standard Refrigerants
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4 Stages of Refrigeration Cycle in order
- Expansion
- Evaporation
- Compression
- Condensation
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Direct vs Indirect Cooling?
Are the coils in the space they're trying to cool?
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Maximum Safe Rudder Angle
- 35 degrees
- Copper and Steel Stoppers
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Hand Electric Steering
Helm
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Autopilot Steering
Uses Gyro
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Non-Followup Steering
Provides no feedback on rudder position
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How many steering gear units are there per rudder?
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Classify Star 200 LPAC
- Rotary
- Single Screw
- Waterflooded
- Positive Displacement
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Three auto operating modes on an LPAC
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At what pressure does the priority valve shut?
100psi
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At what pressure does the priority valve go full shut?
85 psi
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At what pressure does the HP-> LP air reducer pick up?
80 psi
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Two methods for compressing HP air? What does the NAVY usually use?
- Positive Displacement
- Dynamic (Fan Blade)
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What kinds of engines need HP air to start?
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What cools a NAVY HPAC?
Firemain
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What is a LOSP and how many do we have?
- Lube Oil Service Pump
- We have 3 (1 in each MER)
- Positive Displacement Pump
- Rated High/Low (700/250 GPM)
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Low lube oil pressure over the MRG
What happens?
LOSP cycles to FAST position to shove oil over the MRG until we can lock it
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Lube Oil: Clear and Bright test denotes what?
- Bright: No Hazinesss means no water
- Clear: No Sediment (Clear as Mud)
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High Pressure Pipes vs Low Temperature
Chromium Allot vs Carbon
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Tan Handwheel
LP and Salvage Air
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Freshwater (Non Potable)
Light Blue
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Lube Oil Handwheel
Black/Yellow
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3 types of globe valves
- Straight flow
- Angle flow
- Cross flow
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Butterfly Valves used for
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Sentinel Valve
Lets you know when overpressure occurs
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Rapid Plotting
- Thing you used
- Casualty
- _______________
- Time Amplifying Info
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Message Blanks include
- Time
- Who from / where going
- Compartment number, frame, remarks
- Specific location of damage
- Boundary reports
- Symbology
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Common HP Loads
- Starting Engine
- Weapons
- LP Backup
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APC Found in
Gaylord Hood
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Above PEL, you need ____ to enter
Cartridge respirator
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No hot work
- within 5 ft of flammables
- 40 ft of paint and cleaners
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CAS Power voltage
7500 V (Need gloves and boots)
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Tagout Audits required
Every 2 weeks minimum
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O2 deficiency
Less than 19.5%
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Maximum Permissible Rudder Error
2 degrees
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Copper Crusher active at
36 degrees
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Steel Crusher active at
38 degrees
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_____ detect toxic vapors
Draegr Tubes
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_____ required during hot work
- fire watch
- need PPE and agent in reach
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Desmoking Options
- RAM fan (2k ft/min), FM powered
- BOX fan (3.2k ft/min), 440VAC powered
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Bromine Residual (TBR) test
- .2 ppm shore limit
- 2.0 ppm in the 3rd world
- 5.0 ppm emergency
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150 psi or less, need patch
Soft Patch (wrap and hammer)
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100+ psi or more patch
Jubilee
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Need a quick patch, not on pot water
- EWARP (150 psi max, 300 degrees max)
- Need gloves and eyepro
- Hardens in 30 mins
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Maximum working length of wood shoring
30 * minimum thickness
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Maximum length of wedges
6 * minimum butt thickness
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OPREP-5
- Fuel quantity onboard
- delivered daily
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Flashpoint
Lowest temp at which fuel gives enough vapor to be ignited by any ignition source
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Lowest flashpoint NAVY uses
140 degrees F
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Emergency Sound phone circuit
X40J (salt and pepper/pumpkin reel)
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Requirements for a Repair Locker
- Repair Leader/Locker Leader
- OSL
- 2x Investigators
- Repair Electrician
- Plotter
- Phone Talker
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Flying Squad requires
4 people
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Oxygen surplus (dangerous)
22.5 percent and up
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