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72 Cards in this Set
- Front
- Back
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How much brake horsepower (BHP) are the GTM's capable of producing? |
26,250 BHP |
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Where are the GTM's located? |
1A and 1B located in MER1 driving the starboard shaft 2A and 2B located in MER2 driving the port shaft |
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The Gas Generator consists of how many major assemblies? List. |
4 1) 16-stage, axial flow Compressor 2) Annular type Combustor 3) 2-stage High Pressure Turbine (HPT) 4) Accessory Gearbox (AGB) |
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Where are the generator cooling fan motor controllers? |
SSGTG 1 & 3- Located on the opposite side of the FADC SSGTG 2- Located in the same side as the FADC |
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Where are the generator BID panels? |
AUX 1- top level by the EEBD by ladderwell
MER2- By #4 UCC
3GTG- Port side entrance
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Where are the generator emergency cooling controllers? |
AUX 1- bottom level by where we TBR
MER2- bottom level by 2B Lube oil service pump controller
3GTG- Bottom level beside the fuel service heater |
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Where are the generator MORPAC firemain backup valves? |
AUX 1-Bottom level beside the rag bin
MER2- Top level over 2A GTM
3 GEN- Bottom level by fire pump 6 controller |
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Where are the generator firemain backup SOPV's? |
AUX 1- Bottom level beside the rag bin
MER2- Top level over 2A GTM
3 GEN- Bottom level by fire pump 6 controller |
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Where are the generator sea water cooling pump breakers? |
AUX 1- On the back of 1SG
MER2- On the back of 2SG
3GTG- On the back of 3SG |
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Where are the generator sea water Hellan strainers? |
AUX 1- Bottom level by the eductor
MER2- Bottom level by the big sink
3 GEN- Bottom level beside fire pump 6 |
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During a generator start, what are u checking for the visual inspection? |
FOD Lube oil BID Dampers DVRS (Digital Voltage Regulator System) Sight flow |
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What type of oil does the generator use? |
23699 synthetic lube oil |
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What is the sump size for the generator? What is the sump size for the GTG? |
14 gal sump 75 gal sump |
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A slow start will automatically shut down the GTG (T or F) |
True |
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What procedure is used to align the GTG? |
GTSS |
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During a Class B fire situation in a generator module, if the primary halon is ineffective. Can the time delay be bypassed for Reserve halon? |
Yes |
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What is the max effective range for a PKP, CO2, and AFFF bottle? |
PKP
CO2- 4-6ft
AFFF |
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What are the symptoms and actions of a PSDF (Post Shutdown Fire) on the RIMSS? GTG? |
RIMMS Symptoms is high TIT (Turbine Inlet Temp) Actions= Trip fuel-put in local-bleed air-motor (motor until temp goes below 750°F GTG Symptoms- High TIT Actions=Trip fuel-put in local-bleed air-motor (motor until temp goes below 400°F |
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How often must LOFSP samples be taken? Name all instances. |
30 min then every 4 hours |
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Why should the HOPM (Hydraulic Oil Power Module) bypass valve be open prior to start up of the CRP (Control Reversible Propeller Pitch) system? |
To release the pressure |
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What is the purpose of the CRP head tank? |
Maintains a static head pressure preventing seawater from leaking past the blade seals into the system |
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Where are the LP air priority valves located? |
In front of the LP air compressor tank |
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What is the rating of the FOSP (Fuel Oil Service Pump) in slow and high speed? |
Slow speed- 36 GPM @ 105 PSI High speed- 72 GPM @ 105 PSI |
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Explain the F/O logics. |
When the FOSP is at slow and drops below 20 PSI, lead and standby pumps will kick into fast speed for 5 seconds...if it doesn't go back to normal psi then logics will command the lead pump to stop (assuming there is a leak) |
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High DP for F/O Coalescer (separator)? High DP for F/O prefilter? |
Coalescer is 15 PSI Prefilter is 18 PSI |
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At what pressure does the priority valve close? List three air sources that get secured when the valve is shut. |
Closes at 85 PSI Service outlets, F/O purifiers, L/O purifiers |
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What is the alarm set point for high DP on the Prefilter? What is the alarm set point for high DP on the coalescer? |
Prefilter 18 psi Coalescer 15 psi |
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What is the rating for the SWSP? What is the location of each of these? |
1575 gpm @ 35psi MER1/2 AUX1/2 SHAFT ALLEY |
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List three systems that use vital LP air? |
Blow in Door, ventilation closures, vent dampers |
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With a loss of LP air, what position does the F/O pressure regulator valve fall at? |
Fail shut- to stop fuel from going through into the system in case of casualty |
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What are the two ways to inflate the stern tubes? After inflation are u able to rotate the shaft? |
LP air and CO2 No |
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What is the purpose of conducting a fuel purge? When is it required? |
To flush out cold fuel |
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What is the normal operating temperature range of a line shaft bearing? |
125 °F +5 -5 |
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Why do you need the lube oil system operating prior to starting a GTM? |
To lubricate and keep it cool |
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How many AFFF reels are in MER2? |
4 |
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What can cause high VIBS on a GTG? What is an indication of high VIBS? |
FOD, compressor stall, dirty blades |
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What does LOFSP stand for? |
Lube Oil Filter Separator Purifier |
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How do u align an eductor? |
IAW ED Discharge, firemain, suction |
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What is the difference between type I and type II dehydrator? |
Chill water and desiccant chambers |
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What do you align the stern tube IAW? What is the normal pressure and flow rate of the stern tube? |
STCW Flow rate is 15-20psi |
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How do u place the OD box in manual? How do u check for positive pitch control? |
By moving the change over valve to manual By using the manual joystick +5 and -5 |
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Explain the L/O logics. |
-Normal L/O header pressure is 14.5 psi -if pressure drops to 13psi, lead pump cycles to "slow" -if pressure drops to 11.5psi, lead pump cycles to "fast" -if pressure drops to 10psi, standby pump cycles to "fast" -the operator must stop manually. They will not stop automatically in the event of loss L/O pressure |
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What is the purpose of the unloader valve for the F/O system? |
To maintain pressure |
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What must be aligned prior to starting the first LOSP in each MER? |
Electric perciportator |
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Describe the locations for all the manual F/O quick trips. |
AUX1- 1st deck across from CIC
MER1- 1st deck by ladderwell to MER1
MER2- under the fresh water hose reel by CCS
3GEN- Beside the starboard side entrance |
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What PMS documents do you follow for drawing L/O samples? |
MIP 2411 R-20D |
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What is the rating of the LOSP (Lube Oil Service Pump)? |
Electric Slow 318 gpm @ 100psi Fast 560 gpm @ 100 psi Attached 693 gpm @ 168 SRPM and 75psi |
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What are your immediate actions for a class bravo fire in a GTG module? |
Report manned Operate the affected GTG emergency fuel trip and shut manual Make sure GTG damper is shut Put GTG LOCOP in local Visually inspect the GTG through the window Report to EOOW of actions done Man AFFF Report to EOOW fire is out. Reflash watch is set |
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What is the purpose of the No Brake Power Supply? |
Supplies 30 min of back up power for the GTG Basically it's like an UPS (Uninterrupted Power Supply) |
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What is the first step in combating a class C fire? |
Report to EOOW and man Repair Electrician on scene |
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Describe your immediate actions when combating major flooding in 3 Gen. |
Report Isolate Deflect |
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What are the steps for donning an EEBD? |
Make sure gauge is in the green Make sure ball bearing is still attached Look at life date Remove neck strap Insert mouthpiece Nose clip Inhale through mouth |
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Summarize the steps for water washing a GTG. |
Tagout Disconnect the sensing lines Open inlet and outlet drains Put the configuration in the FADC for water wash Wash then rinse Motor Restore |
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Draw the L/O system for MER2. |
- |
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Draw the F/O system for MER2. |
- |
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What equipment is used to stabilize sagging bulkheads/overheads? |
Shoring |
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What is the sump size for LSB (Line Shaft Bearing)? What is the type of oil? |
38 gal Oil type 2190 |
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When taking a L/O PPS (ie. Storage tank), what is the information you write on the bottle? |
Date Time Signature |
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Where is the fuel valves for NR 1 GTG and RIMMS? |
Bottom level AUX 1 over top of the eductor |
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What procedure do you use to motor the GTG? |
GTMS |
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What components cool the GTG L/O system? |
Sea water or firemain |
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What is the PMS doc of water washing the RIMSS (Redundant Independent Mechanical Start System)? |
MIP 3113 R-26 |
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When are L/O samples taken on the MRG while in operation? |
Daily |
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What are the readings taken on the GTG each hour? |
BID SW pump discharge pressure SW pump suction pressure SW strainer DP Generator L/O sump level Gearbox sump level |
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What are the required readings for the thrust bearing? |
Sight flow Pressure Temperature |
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With a complete loss of shipboard air, what position does the F/O and L/O unloader valve fall in? |
F/O valve will fail shut to stop fuel L/O valve will fail open to continue flow to the system and bearings |
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What type of oil does the GTG use? |
23699 synthetic oil |
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How do you prime LOSP (Lube Oil Service Pump) during the start up of the first pump? |
You align LOFSP (Lube Oil Filter separator Purifier) then prime it IAW LOSRG |
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What is the parameter for the BID? |
For GTG its 9.5 inches of water For GTM its 8.5 inches of water |
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What could possibly happen to the GTG if the BID opens while the GTG is running? |
Debris or FOD will have easy access to the GTG because of no filter from BID |
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What valve do you open or shut during start up or stopping of NR3 GTG? |
GSW-V-072 |
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Describe your actions as a PSM during a major fuel leak and then a main space Class B fire. |
Report Shut fuel Put FADC in local Start halon or AFFF |
