BDOC ENGINEERING

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esmenikmati
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289135
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BDOC ENGINEERING
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2014-11-13 23:15:21
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BDOC ENGINEERING
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  1. Standard Navy piping for freshwater and seawater
    Non-Ferrous
  2. 2 Purposes of lagging
    • Insulation (efficiency)
    • Safety concerns
    • Prevents sweating
  3. Yellow pipe
    Fuel
  4. Dark Blue Pipe
    Pot Water
  5. Grey pipe
    HP Air
  6. Red and Green Pipe
    AFFF mixed solution
  7. White pipe
    Steam
  8. How do we classify pumps?
    • Type of movement
    • Pos Displacement vs Non Displacement
  9. What are check valves for?
    • Making fluid flow one way only
    • (They're powered by the fluid inside the pipe)
  10. What makes conductors conduct?
    Excess free electrons
  11. Navy Standard Electrical Power Ratings
    • 450VAC
    • 60Hz
    • 3-Phase
  12. Home Standard Power Rating
    • 120VAC
    • 60Hz
    • 1-Phase
  13. Combat Systems Power Ratings
    • 400VAC
    • 60Hz
    • 3-Phase
  14. Are navy systems ungrounded or grounded? Why?
    Ungrounded, for reliability
  15. 3 kinds or prime movers for electrical generators
    • Steam Turbine
    • Gas Turbine
    • Diesel
  16. What does the EDORM cover?
    Plant operation, procedures, organization
  17. Responsibility of the EOOW?
    Safe and proper operation of the plant
  18. 5 CO Approval Items
    • Starting/Stopping the plant
    • Plant configuration change
    • Battle Override
    • Ballast/Deballast
    • EOSS Deviation
  19. Engineering Log has
    Everything that happened in the plant that day
  20. Min/Max characteristics of eyewash station
    10 secs away/<100 ft away/close to hazard
  21. Requirements for Audiograms?
    • Entering the NAVY
    • Exiting the NAVY
    • Annually
  22. 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)
  23. Symptoms of heat exhaustion
    • Pale skin
    • Dilate pupils
    • Normal Blood Pressure
  24. Symptoms of heat stroke
    • Cool skin
    • Rapid Pulse
  25. When are you required to have 4 tagout signatures?
    Divers & Shipyard Repair
  26. When do you need CO permission to tag out a system or equipment?
    Single valve to sea
  27. Tag out is designed to prevent/mitigate operation of equipment that is
    • Undergoing Mx
    • Behaving abnormally
    • Unreliable
  28. 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)
  29. Four kinds of bearings on the main props shaft
    • Thrust
    • Line Shaft
    • Stern Tube
    • Strut
  30. What lubes the stern tube and strut bearings?
    Seawater
  31. GTM/GTG Lube Oil
    23699
  32. What is TEPP2190 used for
    • HPAC/LPAC
    • CRP
  33. How is the MRG lube oil strained?
    Magnets!
  34. What has the capacity for online lube oil purification? How does this change lube oil testing?
    • MRG
    • Only 1 test: Clear&Bright
  35. Why do we heat fuel oil before transferring?
    • To purify
    • To combust more easily
  36. Other than clear and bright test, what other shipboard tests are conducted on fuel oil?
    • Specific Gravity (Density)
    • Flashpoint
    • BS & W
  37. NAVY Standard Refrigerants
    • R12
    • R134A
    • R114
  38. 4 Stages of Refrigeration Cycle in order
    • Expansion
    • Evaporation
    • Compression
    • Condensation
  39. Direct vs Indirect Cooling?
    Are the coils in the space they're trying to cool?
  40. Maximum Safe Rudder Angle
    • 35 degrees
    • Copper and Steel Stoppers
  41. Hand Electric Steering
    Helm
  42. Autopilot Steering
    Uses Gyro
  43. Non-Followup Steering
    Provides no feedback on rudder position
  44. How many steering gear units are there per rudder?
    • 2
    • For Redundancy
  45. Classify Star 200 LPAC
    • Rotary
    • Single Screw
    • Waterflooded
    • Positive Displacement
  46. Three auto operating modes on an LPAC
    • 125
    • 120
    • 115
  47. At what pressure does the priority valve shut?
    100psi
  48. At what pressure does the priority valve go full shut?
    85 psi
  49. At what pressure does the HP-> LP air reducer pick up?
    80 psi
  50. Two methods for compressing HP air? What does the NAVY usually use?
    • Positive Displacement
    • Dynamic (Fan Blade)
  51. What kinds of engines need HP air to start?
    • Diesel
    • Gas Turbine
  52. What cools a NAVY HPAC?
    Firemain
  53. 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)
  54. 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
  55. Lube Oil: Clear and Bright test denotes what?
    • Bright: No Hazinesss means no water
    • Clear: No Sediment (Clear as Mud)
  56. High Pressure Pipes vs Low Temperature
    Chromium Allot vs Carbon
  57. Green Valve
    Oxygen
  58. Tan Handwheel
    LP and Salvage Air
  59. Freshwater (Non Potable)
    Light Blue
  60. Lube Oil Handwheel
    Black/Yellow
  61. 2 types of gate valves
    • Non Rising
    • Rising Stem
  62. 3 types of globe valves
    • Straight flow
    • Angle flow
    • Cross flow
  63. Butterfly Valves used for
    • Low Pressure
    • Fuel/Oil/FM
  64. Sentinel Valve
    Lets you know when overpressure occurs
  65. Rapid Plotting
    • Thing you used
    • Casualty
    • _______________
    • Time Amplifying Info
  66. Message Blanks include
    • Time
    • Who from / where going
    • Compartment number, frame, remarks
    • Specific location of damage
    • Boundary reports
    • Symbology
  67. Common HP Loads
    • Starting Engine
    • Weapons
    • LP Backup
  68. APC Found in
    Gaylord Hood
  69. Above PEL, you need ____ to enter
    Cartridge respirator
  70. Ammo Stores
    5ft rule
  71. No hot work
    • within 5 ft of flammables
    • 40 ft of paint and cleaners
  72. CAS Power voltage
    7500 V (Need gloves and boots)
  73. Tagout Audits required
    Every 2 weeks minimum
  74. O2 deficiency
    Less than 19.5%
  75. Maximum Permissible Rudder Error
    2 degrees
  76. Copper Crusher active at
    36 degrees
  77. Steel Crusher active at
    38 degrees
  78. _____ detect toxic vapors
    Draegr Tubes
  79. _____ required during hot work
    • fire watch
    • need PPE and agent in reach
  80. Desmoking Options
    • RAM fan (2k ft/min), FM powered
    • BOX fan (3.2k ft/min), 440VAC powered
  81. Bromine Residual (TBR) test
    • .2 ppm shore limit
    • 2.0 ppm in the 3rd world
    • 5.0 ppm emergency
  82. 150 psi or less, need patch
    Soft Patch (wrap and hammer)
  83. 100+ psi or more patch
    Jubilee
  84. Need a quick patch, not on pot water
    • EWARP (150 psi max, 300 degrees max)
    • Need gloves and eyepro
    • Hardens in 30 mins
  85. Maximum working length of wood shoring
    30 * minimum thickness
  86. Maximum length of wedges
    6 * minimum butt thickness
  87. Steel shoring types
    • 3-5 ft
    • 6-11 ft
  88. Primary DC Comms
    • 2J
    • 4J
    • 1JV
  89. OPREP-5
    • Fuel quantity onboard
    • delivered daily
  90. Flashpoint
    Lowest temp at which fuel gives enough vapor to be ignited by any ignition source
  91. Lowest flashpoint NAVY uses
    140 degrees F
  92. Emergency Sound phone circuit
    X40J (salt and pepper/pumpkin reel)
  93. Requirements for a Repair Locker
    • Repair Leader/Locker Leader
    • OSL
    • 2x Investigators
    • Repair Electrician
    • Plotter
    • Phone Talker
  94. Flying Squad requires
    4 people
  95. Oxygen surplus (dangerous)
    22.5 percent and up
  96. NAVOSH
    OPNAVINST 5100.19

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