Nov 2020 MKC SWE PDF
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United States Coast Guard Academy
2020
CG
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Summary
This document appears to be a past paper from a maritime engineering course or manual covering topics such as simplified acquisition procedures, maintenance requests, and water quality.
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NOV20 MKC SWE RATE 1. Form used for the Simplified Acquisition Procedure (SAP)? Order for Supplies or Services (OF347) or Solicitation/Contract/Order for Commercial Items (SF1449) 2. Who approves changes for Cutter Acquisitions (cutters being built)? CG-932x Acquisition Program Ma...
NOV20 MKC SWE RATE 1. Form used for the Simplified Acquisition Procedure (SAP)? Order for Supplies or Services (OF347) or Solicitation/Contract/Order for Commercial Items (SF1449) 2. Who approves changes for Cutter Acquisitions (cutters being built)? CG-932x Acquisition Program Management Office (PMO) fills the evaluation role for the Acquisition Directorate for all engineering change requests (ECR) until the asset type is fully integrated and transitioned into sustainment for assets still in acquisition. The PMO will consult with appropriate Subject Matter Experts (SME's) for each type of content (e.g., C4ITSC for electronics, etc)." CG-932x Acquisition Program Manager has the ultimate authority to approve, modify, downgrade or reject a CG-22 for asset types still within the acquisition phase. *"NOTE: For assets in acquisition, if a contractor is developing and updating the engineering and logistics documents, then the program management office will direct changes via the contracting officer, as established in the contract."* Configuration/engineering change proposals for surface assets in an acquisition phase will be approved by CG-932X CCB, as each surface program has their own CCB. 3. 3 Types of request for maintenance outside units capability? Service beyond unit capability -Using applicable process guide for service (SFLC Service Request, SFLC Industrial Service Order (ISO), or Shore Side Maintenance Request (SSMR). 4. How are maintenance items derived from a cutter inspection tracked? ACMS? 5. Max PPM Chloride for make up water for Jacket water? The use of water containing more than 150 μmho/cm conductivity or more than 40 ppm chloride can result in accelerated scaling and corrosion of jacket water cooling system internals. 6. How often to test J/W? 3.5.2 Sampling Frequency. Engine jacket water samples for all treatments shall be obtained and tested in accordance with the following requirements: 1. Within 24 hours after freshly filling and treating. 2. Within 24 hours after adding water to the cooling system. 3. Within 24 hours after adding inhibitor to the cooling system. 4. At least monthly. 5. In accordance with the Planned Maintenance System. 7. Underway logs broken up into how many sections? The Machinery Log shall be written for each day, covering the period from 0000 to 2400. At sea, the Log shall be kept in 4-hour watches and signed by the Engineer Officer of the Watch (EOW). In port, the log shall be written in three periods: 0000 to 0900, 0900 to 1600, and 1600 to 2400. Each period shall be signed by the EOW. Manual Machinery Log entries shall be legible and signed in black or blue-black waterproof ink. Digitally generated logs may be signed electronically by the EOW. The Machinery Log shall be signed in ink or digitally daily by the EO/EPO making appropriate remarks. The logs for one month shall be bound together, or saved electronically on external storage material, and maintained aboard as required by current instructions concerning official records. 8. How long are machinery logs kept? Machinery logs containing an operating record of installed equipment. Destroy when 3 years old. (NC1-26-80-4), item 82b 9. Loads moved during docking documented how? 3.3.3.2 Modification of loads: During the docking evolution, the Facility shall ensure that no load has been shifted, added, or removed from the vessel, including liquids such as fuel or water, unless authorized by the Dockmaster. A condition found report (CFR) shall be submitted for all liquid and dry load modifications during the docking evolution. The Facility shall be provided with the vessel's estimated arrival loading conditions by the Coast Guard no later than seven calendar days before the arrival day. 10. Glass reinforced shafts inspected how often? 3.4.4 Glass Reinforced Plastic Shaft Covering. Shaft covering shall be inspected in accordance with MIL-STD 2199A at every regularly scheduled drydocking. Currently these shaft covering inspections should be not greater than five year intervals. 11. Max drip for shaft seal of 8" and under? Allowable Sterntube Seal Leakage. The figure provided herein replaces guidance provided in NSTM 244. The leakage rates for silicon carbide seals typically used for shaft sizes 8" or less should not exceed 0.6 fluid ounces/inch shaft diameter/hour. Stuffing Box Leakage. Stuffing boxes require a small amount of leakage to cool and lubricate the packing. As a general guide, the gland should be adjusted for a leakage rate of 3 drops per minute while operating. 12. How many pumps of grease for the 45 RBM shaft seal? Lubricate the reversing cylinder bulkhead seal by applying three shots of grease to the grease fitting (Item 2), (Refer to Figure 2). a\. Repeat Step 1 B 2. up to three times until grease comes out of the weep hole. \(1) Ensure the grease is not being discharged into the water from the transom at the reversing cylinder, if grease is not present at weep hole. 2\) Contact Engineer Petty Officer (EPO) if grease does not come out of the weep hole. 13. 45 RBM gear case oil amount? NOTEJ: Jet-drive bearing housing oil sump contains approximately 0.48gallons of oil. P/N: DELVAC 1300 Super15W40 with a funnel through the dipstick tube to jet-drive housing, (Refetro Figure2). Wait a minimum of 5 minutes to allow oil to run down tube. Check jet-drive bearing housing to ensure oil level indicated on the dipstick is between the minimum and maximum level marks 14. LRI Jet drive bearing oil type? 15. Why is the LRI jet drive shaft rotated when sitting for too long? **10.3.8** If the **Ultrajet** has not been operated for a long period engage the drive to the **Ultrajet** and rotate the input shaft slowly for a short period to lubricate bearings. 16. WMSL OWS feed pump called what? The bilge water to be processed is pulled from the bilge or holding tank by the Feed Pump. 17. Type of vibration damper works across all loads/speeds? 233-5.22.6.1 Viscous Type Vibration Damper. The vibration damper consists of a hollow housing that contains a free or floating flywheel. The small clearance between flywheel and housing is filled with a viscous silicone fluid. As the crankshaft vibrates and carries the housing with it, inertia tends to cause the flywheel to turn at a more constant speed. The resulting relative motion causes high shearing action in the silicone fluid and the energy is dissipated as heat. Thus, the flywheel is connected to the crankshaft through the fluid film and any instantaneous speed change is resisted by drag of flywheel inertia acting through the fluid film. The effect is to dampen all the crankshaft torsional vibrations. This type damper would reduce the stresses created throughout the complete speed range. The viscous type damper shall be replaced at engine overhaul, or when the dampener housing is dented or warped. 18. Honda 225 spark plug electrode coated with what? Iridium, copper? This outboard motor uses spark plugs that have an iridium coated center electrode. 19. Why do you remove the top bolt when changed lower unit gear case oil? Remove the top oil level plug. **RESULT**: Releases the vacuum that exists and allows the oil to drain freely from the lower unit. 20. DTC's with a short blink for HONDA? 1-8, 1-9? 1-8 represented by short blinks 21. Notify the COR how long before using hazardous materials? 22. Notify who if testing Hazardous waste? Unknown waste such as \"mystery drums\" must be managed as a hazardous waste from the [discovery] date, not the analysis date. Consult your environmental specialist at your servicing CEU prior to conducting any analytical testing. 23. Characteristics of HAZ waste? 24. What percentage of waste system underground to be considered an underground system? Underground Storage Tank- means any one or combination of tanks including connected underground pipes, which is used to contain regulated substances (including petroleum) and which only 10% or more of the tank and piping need actually be located beneath the surface of the ground. 25. FOP makes what 3 products? Clean fuel, water and what? 541-9.15.2 DESCRIPTION. The purifier is essentially a motor-driven centrifuge. It separates contaminated fuel into its three major components due to the difference in their relative densities. These components are described as: the heavy phase (water), the light phase (purified fuel), and solids/sludge. The actual purification takes place within the bowl assembly. Rotation at high revolutions per minute (r/min) provides the centrifugal force necessary for the purification process. During normal operation, the purifier constantly discharges the heavy phase (water) and the light phase (purified fuel). 26. What is used as a seal in an FOP? 541-9.15.3 PRIMING-WATER SEAL. Water is admitted to the bowl to establish a priming seal. The priming seal must be established prior to admitting fuel. Excess priming water discharges from the water outlet. As fuel is introduced to the bowl, the fuel displaces the water closest to the center of the bowl. During normal operation, water is displaced outside the disk stack to the outer portion of the bowl. The manually cleaned fuel purifiers on the FFG 7 and DD 963 classes require the addition of priming water prior to starting the purifier motor. The self- cleaning purifiers require the purifier to be at full operating speed prior to admitting seal water. 27. Hearing Protection kept IAW what on USAT checklist? Safety and Environmental Health Manual, COMDTINST M5100.47(series), Ch 10.B.1; 29 CFR 1910.95(c)(1) Hearing Conservation Program TTP, CGTTP 4-11.11. 28. Minimum amount of training time for AFLOAT USAT hearing protection? 30 min, 1 hour? All personnel exposed to noise at or above 85 decibels receive initial and annual refresher hearing conservation training. Training is documented in TMT. For additional information, consult the Hearing Conservation Program TTP, CGTTP 4-11.11. 1 hr. 29. Cardan shaft coupling allows for how much misalignment? Cardan Shafts are used where an offset between driving shaft and driven is incorporated into a system by design. Offset and misalignment should not be confused with each other. Misalignment implies the driving shaft and driven shaft are not parallel in any plane. Cardanshafts can handle slight misalignment; up to 0.25 degrees. 30. What is on the 210' reefer compressor discharge line to protect the system? The high-pressure relief valve will protect the compressor against excessive discharge pressure in the event the high-pressure switch fails. High-pressure relief valves may be installed two ways: 31. What differential pressure gauges used on a reefer system? 516-3.2.2.24.3 Oil Pressure Differential Control Switch (LOP). The oil pressure differential control switch is a safety control provided to protect the compressor against the loss of lubricating oil pressure. The switch is of the differential type, sensing the difference between two pressures. One element is connected to the oil line feeding the compressor to sense compressor oil injection pressure. The other element is connected to sense the pressure in the compressor suction line. Thus, the differential pressure sensed is the actual oil pressure. 32. What is most likely to cause a reefer compressor not to start? Compressor will not start. Low voltage, tripped overload, or blown fuses. Reset overload or replace fuses and examine for cause of condition, see schematic in the applicable plant technical manual. 33. Scoring on a compressor cylinder walls cause by what? Dirty intake filter? 551-1.6.2.2 Compressor Intake Filters. The area or space at the compressor intake is constantly under vacuum while the compressor is in operation. If the cleanliness at the compressor intake area is not maintained, vast quantities of dust, dirt and grit will be taken into the compressor. When these contaminants are allowed to enter the compressor, they have an abrasive effect on all internal air passage components. The only way of reducing this internal wear and resulting maintenance expense is through the use of an intake filter. There is a wide vari- ety of filter designs including the following: 551-1.6.2.2.1 Dry Type Filters which have felt or other filtering media held in rectangular or radial fin forms. Some types include a silencer chamber to reduce the noise of intake pulsations. This is the only type filter suit- able for use on oil-free compressors. 551-1.6.2.2.2 Viscous Impingement Types, rectangular or cylindrical, packed with fine strands of wire coated with oil. The oil film traps dust. 551-1.6.2.2.3 Oil-Bath Filters have a reservoir of oil agitated by incoming air. Oil-coated dust collects in the reservoir. 34. Dirty aftercooler on an air compressor will cause what? 551-1.7.3 AFTERCOOLERS. An aftercooler shall be provided between the compressor's final stage of compression and the air receiver/flask. The purpose of the aftercooler in conjunction with a separator is to remove moisture from the compressed air immediately after compression before the air enters the receiver/flask and to reduce the temperature of the air to acceptable levels. 551-1.11.2.1 Fire and Explosion Prevention. Air compressors that are lubricated in the piston or cylinder area present an oil hazard in the discharge air piping. The accumulation of metal particles, carbon and oil in the inter- coolers, aftercooler and associated interconnecting piping may result in piping fires and explosions. Accumulations of dirt, scale and marine growth on the water side of water-cooled air coolers and compressor cylinder jackets result in elevated air temperatures and thus may also create a fire or explosion hazard. Regular periodic cleaning of the air and water passages of the compressor is therefore mandatory for safe and reliable compressor operation. 35. Air filter on HP air systems protects what? Fire/explosion? 551-1.7.4.1 Compressor Discharge HP Air Filter. Oil-lubricated HP air compressor complexes incorporate oil/ particulate air filters in their discharge piping. The most commonly used filter for this purpose is the Cuno 1H1 type, usually installed downstream of the moisture separator. The main purpose of this filter is to remove dust and particulate matter, which pass through the compressor air intake filter and any carryover of the lube oil used within the compressor moving parts. This filter provides maximum safety against air system fires and explosion hazards by minimizing lube oil deposits and accumulations within the piping system. 36. Crankshafts with journals of what size must include deflection readings on cutter report? Crank web deflection readings are to be recorded in the machinery history and reported in the Cutter Engineering Report for engines with crank journals of 4 inches or more. 37. How much crank deflection per inch of stroke?.01,.001? 233-5.25.17 A rule-of-thumb used for deflection is 0.0001 inch for each inch of engine stroke other than the last throw on the flywheel end. Actually, the amount of deflection the crankshaft will tolerate is dependent on the design and material used. 38. Hot oil bath on engine at what temp? However, if MIL-L-9000 lube oil is used, the flushing pump shall meet or exceed the flow rate of the attached lube oil pump and 79.5° to 87.7°C (175° to 190°F) oil temperature must be maintained. 39. What viscosity of oil for hot oil bath? MIL-L-2104 Grade MS-HDO 10W shall be used for hot lube oil flushing. MIL-L-9000 may be used for flushing when MIL-L-2104 is unavailable or in an emergency. 40. How long do you run the R/O pump when winterizing? 87 membrane preservation -- run pump 10 min WMSL RO Layup -- run pump 30 min FRC - After the preservative solution has been circulated for 30-40 minutes 41. Change R/O oil how often? After first 100 hours and every 500 hours thereafter. Estimated. Actual HP pump oil replacement frequency is every 500 hours or monthly, whichever comes first. 42. Form required for sole source justification? J&A Justification and Approval 43. Bromine cartridges good for how long? Bromine cartridges have a full service capability of 24 months from the date the cartridge is filled. This date is stamped on each cartridge. While cartridges older than 24 months can be used, the quantity of bromine that can be washed from the resin decreases. This results in a decreased cartridge capacity. Cartridges older than 24 months may be used if no others are available. 44. Potable water hose labeled how many feet? 45. Potable water hose coupling painted what color? 46. What type of splice used for large conductors? The split bolt splice (view B of figure 2-10) is used extensively to join large conductors. In the illustration, it is shown replacing the knotted tap joint. The split bolt splice can also be used to replace the \"butted\" splices mentioned previously when using large conductors. 47. What can you check a switch for once the power is secured? Switches are also tested by checking for continuity (resistance) with a digital multimeter. 48. Last step after a splice or connection is made? The final step in completing a splice or connection is the placing of insulation over the splice. 49. What do you do for cylinder liners that are glazed over? 50. How to check if piston rings seated after an overhaul? 233-3.7.1 Two methods are used to check the seating of piston rings, visual inspection and operational parameters. Both methods should be used for checking the progress of seating of piston rings where possible. 233-3.7.2 In most two cycle engines, the seating of rings can be observed by visual inspection. The seating surface of a ring which has not seated will have a dull appearance and may have areas of black carbon where blow-by is occurring. When seated properly rings will have a shiny surface. Grooved face rings will have a shiny surface, except for dark circumferential lines indicating the small machined grooves. 233-3.7.3 In four cycle engines, visual inspection of ring condition is not practical. Crankcase pressures, engine exhaust color, compression pressures, firing pressures and lube oil consumption shall be observed to determine progress of piston ring seating. These conditions should also be observed in the case of two cycle engines and coordinated with the results of visual inspection of the rings. 233-3.7.4 As an example, if the crankcase vacuum of an engine is normally 1/2 to 1 inch of water vacuum, the vacuum immediately after an overhaul would probably be 0 or slightly on the pressure side. As the run-in (under load) continues, the pressure should diminish and gradually the normal vacuum for the engine will be obtained. The engine exhaust will gradually clear and the crankcase vacuum will return to normal as the run-in process is completed. 51. Chrome cylinder liners do not do what? Where new rings are to be installed in old liners that are glazed, the glaze shall be broken by honing, with the exception of chrome-plated liners, before installing new rings, or the rings may not seat. Chrome plated rings or liners require higher cylinder pressures for successful ring seating. 52. What keep valve stems in place? Valve guides prevent undesirable side-to-side movement of the valve in the cylinder head. A valve guide is usually made of materials that are softer than the valve stem, which extends the life of the valve. Valve guides are merely bushings which can be easily renewed. 53. What can cause a valves seat to warp? 505-9.6.1.8 Seat Warping. In brazed valves, seat warping may result from applying excessive heat to the valve body during brazing. 54. What prevents a system from being overloaded? Pressure relief valve? 55. Oil for CPP, Reduction Gear, tested how often? Sampling intervals for reduction gears, thrusters, controllable pitch propellers, and hydraulic systems that don't have defined oil change intervals shall be taken quarterly. Samples from reduction gears, thrusters, controllable pitch propellers and hydraulic systems with defined oil change periods shall be taken a minimum of three times between oil changes at even increments of elapsed time. Oil samples shall be taken no less frequently than quarterly. 56. The distance from on a Gear tooth from top to bottom is called what? **Addendum.** The distance from the pitch circle to the top of the tooth. 57. Heat in a heat exchanger goes from hot to cold? Heat flows how? 58. What is required with tag-out on a system when a ship is waterborne? Double valve integrity? 59. Out of calibration label? 60. Run in newly overhauled engine to what percent? The first few minutes of engine operation will usually determine the success or failure of main or connecting rod bearings. Run-in of piston rings and cylinder liners requires a gradual increase to 100% load. Properly seating of piston rings requires high cylinder pressures. 233-3.5.1 A diesel engine run-in schedule has two distinct phases. - The first phase is running in at no load, which is primarily for the purpose of mating of new main and connecting rod bearings with their journals and connecting rod bushings with their pins. No appreciable seating of piston rings will occur during this phase. - The second phase is running in under progressively higher loads, which gives the higher cylinder pressures and temperatures necessary for successful seating of new piston rings. Some wearing in of new main and connecting rod bearings and bushings is incidentally accomplished while running in under load, but the danger of failure of these parts decreases when the first phase is finished. 61. Notify who if there is a potential of faulty equipment or discharge of HAZMAT? 62. What is on an ASHORE USAT? Fire Safety, Ladders, Hearings, Heat Stress? Fire Safety -- AFLOAT Ladders Portable / Fixed-- ASHORE Ladder Safety -- AFLOAT Hearing Conservation Program HCP -- ASHORE / AFLOAT Thermal Stress Hot/Cold -- ASHORE / AFLOAT 63. SCBA low battery light? Red light on top, red light on bottom? Only the top row of LEDs are used for displaying pressure readings. If, after the start-up sequence, a yellow LED remains lit, a low battery condition exists. 64. Flush P100 for how long? 65. P6 spark plug gap? a. Recommended spark plug is an NGK \# BPR6ES or equivalent. b. The spark plug electrode gap should be.028-.031 in. (.70-.80mm). 66. P100 \_\_\_ cooled, \_\_\_ -stroke engine? The Yanmar engine is an air-cooled, single cylinder, 4-cycle diesel engine rated at 10 horsepower. 67. TAN-B Trailer receiver rated for what? 68. Honda Air/Fuel sensor reads how? Ambient air and what? Heated oxygen sensor (HO2S) Detects Air fuel ratio. Mounted on exhaust manifolds. 69. Honda 225 low oil alarm PSI at what psi when running at 1800 RPM? If oil pressure becomes low, less than 23 psi at 1800 rpm, the OP light will go out. 70. Type of corrosion from bolts? Stress, galvanic? **Stress Corrosion Cracking:** Stress corrosion requires the material in question to be under a tensile stress and also to be exposed to an environment that will initiate cracks within the stressed part. The stress can be as low as 10% of the yield stress for certain alloys and up to 70% for others. Loads applied by mounting bolts, in-service conditions, or even manufacturing processes such as welding can induce stress corrosion. 71. Voltage is gathered where on a generator? Slip rings, armature? **Conducting brushes** of carbon collect the current from the slip rings and transfer the current via an external circuit. 72. Distance a propeller travels through a solid in one rotation? 73. Roller bearing tolerance standard? 244-1.2.1.2 Precision. Three grades of precision are available. The standard grade of precision is grade 00 standard tolerance. This level is satisfactory for most designs and therefore has the widest use. Bearings having closer tolerances on dimensions are manufactured to grade 50 precision tolerances or grade 70 super-precision tolerances. 74. SSS clutch designed to be what? Maintenance free, fit and forget? 3.4.3.1 SSS Clutches are designed to be \'Fit and Forget\' and as such do not need regular service or spare parts; most SSS Clutches will outlive the main plant without intervention. 75. Multi-disk clutches compressed how? Hydraulic clutches are most often multi-disc clutches (MDC). MDCs are installed to allow for engaging/disengaging transmission of power from the engine to the gear, and changing ratios of multi-speed gears. The clutches also provide the means to switch between propulsion plant operating modes. MDCs are compressed by controlled oil pressure. Eaton disc type pneumatic clutches, as installed on the 175 WLM Z-Drives, uses air pressure to move a piston that forces the clutch plates together (see Figure 2). The clutch model in use by the Coast Guard can use either air or oil, and can be operated dry or oil filled. The Coast Guard operates this clutch dry using ship service air pressure for positive engagement. When the clutch is disengaged, springs return the piston and clutch plates to an unengaged position. 76. How much sealant on 45 RBM steering linkage? First 3 threads, half of the bolt? \(3) Apply sealing compound, P/N: 243, to the first three threads of the bolt. 77. How is free water removed from fuel? Tank Stripping. Timely and periodic tank stripping of water bottoms and particulate contaminates is the single most effective procedure for maintaining fuel quality. Storage and service tanks are to be tested for free water content using bottom soundings and water indicating paste. To the best of the cutter's ability, strip the tank if free water is detected. It is recognized that many older cutters do not have effective stripping systems. Testing for free water shall be performed: 78. How long do you allow a fuel sample to sit to determine if haziness is caused by water or air? If the sample appears cloudy, steps should be taken (particularly for pipeline delivery) to confirm that hazy/cloudy conditions are a result of air and not water in the fuel. To make this determination, allow the fuel sample to rest undisturbed for 5 minutes. If the sample clears from the bottom to the top, the cloudiness is due to dissolved air, and the fuel is acceptable. 79. Which regulator on the SCBA reduces the pressure to 80 psi? The first stage regulator is located on the carrier assembly to the left of the air cylinder. The first stage regulator is a "balance-type" pressure reducer that maintains pressure to the second stage regulator at approximately 80 psig throughout the entire operating pressure range of the cylinder. The regulator has a redundancy feature to minimize the possibility of a failure within the component. The second stage regulator is a pressure-demand regulator, which maintains a positive pressure (0.05 psig) in the facepiece at all times. 80. VI stands for what in hydraulics? Viscosity index (VI) is a numbering system used to measure a fluid's resistance to viscosity changes with changes in temperature. The higher the number, the more stable the fluid's viscosity when there are changes in temperature. 81. 2 types of gears used in hydraulic gear pumps? Two types of gears that are found in both external and internal gear pumps are: Spur and Helical 82. Who must approve biocide fuels every time they are used? Cutters shall contact the appropriate Product Line and the Main Propulsion Machinery Section - Fuel Quality at SFLC Engineering Services Division (ESD) (see Section 3.7) for guidance prior to purchasing and taking on Emergency Substitute Fuel. Approved Biocide Products. Biobor JF is approved for use on Coast Guard cutters and boats. Cutters shall not use a different biocide product due to potential compatibility concerns, unless specific approval is provided by the Main Propulsion Machinery Section - Fuel Quality at SFLC ESD. Use of Fuel Treatments. Fuel treatments, other than biocides, may be approved for use on a case-by-case basis. Fuel treatments shall be used in accordance with the manufacturer's instructions or as directed by the Product Line or the Main Propulsion Machinery Section - Fuel Quality at SFLC ESD. No Coast Guard cutter or boat shall knowingly receive and use a fuel containing biodiesel greater than B0.5 (0.5 volume-percent) without case-by-case authorization from the appropriate Product Line. For informational purposes, also notify the Main Propulsion Machinery Section - Fuel Quality at SFLC ESD. 83. What must be changed on an FOP if used to purify JP5? However, when used with JP-5, some fuel oil purifiers will require a different gravity disk to remain effective. Units with centrifugal purifiers should review technical manuals, and contact the respective fuel oil purifier manufacturer and the appropriate Product Line for guidance. 84. Fuel use limit? 6 months? Any main propulsion fuel, other than MIL-SPEC F-76 or JP-5, is subject to an approximate 6-month use limit starting from when the fuel is taken onboard. 85. Acronym LMTD 86. What office approves modifications to assets? CG7,8,9? The Product Line (PL) Asset Manager (AM) fills the evaluation role for each specific Asset Type. A configuration change request approved by the CG-45 (Office of Naval Engineering) Configuration Control Board (CCB) will result in a TCTO to implement the configuration change. All new requirements or capabilities being introduced will continue to go to the Headquarters sponsor (CG-7) for requirements validation and approval; refer to Appendix G. Configuration/engineering change proposals for surface assets in an acquisition phase will be approved by CG-932X CCB, as each surface program has their own CCB. Surface Acquisition Program (CG-9) CG-45 Office of Naval Engineering 87. Submit a CG22 if what is affected to an asset? Changes to an asset's mission characteristics or operational capabilities. The Joint Surface Technical Change/Feedback (CG-22) process is performed whenever: A new technical or logistical document must be created. An Engineering Change is requested. A change or addition to a publication or allowance is requested. A publication is to be deleted/removed. An adjustment to an Allowance Change Request. SFLC-BOD provides a spreadsheet of outlining all currently assigned CG-22 distribution LOV for each Asset Type on the SFLC's Portal Page for SFLC Central. The EC process is performed whenever a configuration change to a surface asset is requested from any concerned organization. ECs are required for the following configuration changes: 1\. Changes to a system's mission characteristics or capabilities. 2\. Changes in weight or moment that significantly affect intact or damaged stability. 3\. Changes to hull structure, space allocation, watertight integrity, or compartmentation. 4\. Equipment changes that impact maintenance or supply support (onboard assets or at shore support infrastructure). 5\. Changes that require Electromagnetic Compatibility (EMC) or TEMPEST Inspections in accordance with COMDTINST M2241.6 (series) or COMDTINST M2400.1 (series). 6\. Changes to an approved fluid or paint/coating system (non-skid, powder coating, hull coating systems, interior and exterior coating systems, etc.). 7\. Changes that modify equipment/system procedures (operations, maintenance, support, personnel, training, etc.). 88. What type of air filter is used for a compressor that has no oil? 551-1.6.2.2.1 Dry Type Filters which have felt or other filtering media held in rectangular or radial fin forms. Some types include a silencer chamber to reduce the noise of intake pulsations. This is the only type filter suitable for use on oil-free compressors. 2. Viscous Impingement Types, rectangular or cylindrical, packed with fine strands of wire coated with oil. The oil film traps dust. 551-1.6.2.2.3 Oil-Bath Filters have a reservoir of oil agitated by incoming air. Oil-coated dust collects in the reservoir. 89. Test temporary hose to what percent? Procedures for testing shall comply with 46 CFR 56.97-5, which requires a test pressure of 150% of the rated working pressure of the hose. The test pressure shall be held for approximately 10 minutes. Where a high pressure hose is used in an extreme low pressure application (e.g. a 4,000 psi rated hose in a 100 psi drainage system), the hose assembly may be tested to at least 150% of the design pressure of the system, provided that such test pressure is clearly noted in the hose log. Condition Based Maintenance, Replace on Failure, and Portable/ Other category hoses operating in low pressure systems (less than 150 psi) do not have to be hydrostatically tested. 90. What would the ration be for a driven gear with 40 teeth and drive gear with 10 teeth? **Reduction Ratio (RR).** Mesh RR is the number of teeth of the gear divided by the number of teeth of the pinion it is meshed with, or the rpm of the gear divided by the rpm of the pinion. Gearbox RR is the HS mesh RR multiplied by the LS RR. The ratio is determined by dividing the number of teeth on the driven gear by the number of teeth on the driving gear. For example (figure 12-3), if the number of teeth on the pinion gear attached to the engine (driving gear) is 25, and the number of teeth on the bull gear (driven gear) is 75, the ratio is 3:1. For every one revolution of the driving gear, the driven gear will turn 1/3 turn. If the engine is turning at 900 rotations per minute (rpm), the shaft attached to the bull gear will turn at 300rpm proportionate to the speed difference. 91. Common problem with CG trailer lights? Corrosion is the primary cause of trailer electrical failures and it is very important to continually inspect and maintain the wiring on the trailers to keep them in optimum performance and the trailer ready for towing. 92. First step for logging a DISCREP in ALMIS? 1. From the EAL page, select Maintenance Records. 2. Select the applicable asset number. 3. The Navigate on Save to selections offer alternate destination options. 4. If applicable, select (check) the Disabled checkbox. 5. Ensure that the correct Zulu Date and Zulu Time are entered. 93. What would cause a hydraulic pump to fail quickly? All pumps need a clean fluid with adequate lubricating qualities. All pumps must be designed, installed, and operated to allow the flow of fluid into the suction side of the pump with minimum restriction. If inlet strainers are clogged, inlet passages restricted, pumps run too fast, or the fluid is not of correct viscosity to flow freely, the pump may cavitate. This is the condition where atmospheric pressure, or in some cases the supercharging pressure, that is causing the fluid to flow into the pump inlet is not sufficient to completely fill each cavity of the unit as the pump shaft revolves. In this case, a void forms in the cavity, rather than a solid charge of fluid. When the pump cavity progresses to the position where it is opened to the high pressure outlet port, the high pressure fluid immediately fills the void or fluid vapor pocket, with an impact that produces a damaging shock, vibration, and audible noise. A pump being operated in a cavitating condition will generally fail completely in a fairly short time. 94. What two phases are used in AC electricity? Single and 3? **Single-phase** power (figure 7-12) is used for small electrical demands as found in the home. A single-phase generator is made up of a number of windings (coiled conductor) connected in series, forming a single circuit. The voltage is represented as a single waveform. **Three-phase** power (figure 7-13) is a continuous series of three overlapping AC cycles and is used where large blocks of power are required such as in commercial applications and industrial plants. A three- phase AC generator has three single-phase windings which create three separate circuits. These windings are spaced so that the voltage induced in each winding is 120° out of phase with the voltages in the other two windings. Each winding has its own voltage peak; therefore, three-phase power is represented by three waveforms. 95. How do you test a pressure sensor? Pressure sensors are tested using a digital multimeter to check for a known value at a given pressure. This value can be found in the manufacturer's technical manual. 96. If you are purchasing things from a vendor often what can be used? Blanket purchase? Blanket Purchase Agreement FAR 8.405-3 **8.405-3 Blanket purchase agreements (BPAs).** \(a) *Establishment*. 1\) Ordering activities may establish BPAs under any schedule contract to fill repetitive needs for supplies or services. Ordering activities shall establish the BPA with the schedule contractor(s) that can provide the supply or service that represents the best value. 97. AC fan coil unit does what to the air? 98. What refrigerant is used on an FRC? 99. What part of the crankshaft connects main journal to throws? The crankshaft webs (figure 4-3) form the link between the main or intermediate journals and the connecting rod journals. The arrangement of two webs together with the connecting rod journal is called a throw. 100. What is the main part of the crankshaft that provides support called? The main journals serve as the points of support and as the center of rotation for the shaft. As bearing surfaces, the main journals and the connecting rod journals of crankshafts are surface-hardened, so that a longer wearing, more durable bearing metal can be used without causing excessive wear of the shaft. In many crankshafts, especially those in large engines, the connecting rod journals and main journals are made of hollow construction. Hollow construction not only reduces weight considerably, but also increases torque capability of the crankshaft and provides a passage for the flow of lubricating oil. EPME 1. SSIC found in what manual? 2. If modifying a MEMO you must do what? 3. Name of the job for a person who keeps track of time for a team? 4. Date of the Act that created the TSP? 5. Primary stage symptoms for syphilis? 6. 1^st^ step of Risk Management? 7. Reference what for giving training? ISB? 8. Manual for awards? 9. What 3 items must be selected when putting in transfer picks for your rate/paygrade? 10. What information is displayed for job description on a DA pick list? Unit name, job family, recruitment type? 11. Max SWE score for reservist? 170 12. Men's bulk hair? 13. How many steps when conducting a meeting? 8? 14. Meeting evaluation steps? 15. What UCMJ article states you do not have to be guilty to commit a crime? 16. Yoga and stretching helps what? 17. Most important factor for SWE eligibility? 18. BAC limit to cause a coma? 19. Max sea time points? 20. UCMJ article dealing with presidential NOTES 1. 2.3.4.4 The minimum acceptable time between center section overhauls recommended by the engine manufacturer, based on the craft's operating profile and engine rating, shall be 12,000 hours. 2. The MAM Non-Casualty Work Request (NCWR) is used to request external assistance for maintenance issues not urgent in nature and have no immediate impact on unit operational requirements. It is not a CASREP, it is loaded as a Current Ships Maintenance Project (CSMP) into the FLS Work Request module for action by the SFLC Product Line. 3. The EC process starts with the submission of a CG-22 form outlined in the Joint Surface Technical Change Feedback (CG-22) Process Guide, CGTO PG-85-00-20-G. The requirements for submission of SFLC Central Activities for the various functions and reviews are detailed in the Joint Surface EC Desk Guide. Once the EC is approved the change is promulgated to the fleet by the TCTO process, defined in the Joint Surface Time Compliance Technical Order (TCTO) Process Guide, CGTO PG-85-00-40-G. 4. Flexible couplings use either elastic elements as in the Vulkan EZ and Rato S couplings, flexible plate elements as in the Thomas couplings, or gear elements. 5. Torsional Damping Couplings. These couplings are dampen torsion vibrations from the MDE preventing their propagation through to the reduction gear elements. Geislinger, and Vulkan Rato S (Figure 10) are two types that are used by the coast Guard. The Geislinger coupling utilizes oil damped steel spring plates and the Rato S uses elastomeric elements between coupling halves. 6. The ECM makes necessary correction to the basic controls to achieve optimum fuel injection control in accordance with the changing engine operating condition using the following signals: -- Intake manifold vacuum pressure signals from the MAP sensor to increase the injection quantity when the engine is operating under a high load (when manifold vacuum pressure exceeds a predetermined level). -- Throttle valve opening signal from the TP sensor to make correction to the MAP sensor output according to acceleration and deceleration of the engine. -- Intake air temperature signal from the IAT sensor to modify the quantity of intake air according to the air temperature and adjust the injection fuel quantity accordingly. -- Engine temperature signal from the EBT (ECT1) sensor to increase the injection fuel quantity according to the intake manifold vacuum pressure when the engine is cold. -- Air-fuel ratio signal from the HO2S to adjust injection fuel quantity to achieve the stoichiometric air-fuel ratio. -- Battery voltage signal to compensate for delay in injector operation due to drop in battery voltage. 7. LRI Jet drive - Steering effect is proportional to engine rpm. The wider the throttle opening the faster the turn. 8. SCBA 9. FAR 13.5 provide special authority for SAP for certain commercial items exceeding \$150K (SAT), but not exceeding \$7 million (\$13 million for acquisitions entered into under the authority of FAR 12.102(f)(1), under the commercial item program. Customer - Prepares, signs and dates the J&A. Submits the J&A with the PR Package for requirements above the micro-purchase threshold to \$650,000. In accordance with FAR Subparts 13.1 and 13.2 Micro-purchases are open market purchases less than or equal to the MPT, currently \$3,500 -- except for construction related purchases subject to the DBA (the threshold is \$2,000); and for services subject to the SCLS (the threshold is \$2,500). Micro-purchases are low-dollar value, simple transactions that may be made by individuals with appropriate delegations of procurement authority up to the micro- purchase threshold of \$3,500 for supplies and services not subject to the SCLS Statute, \$2,500 for services subject to the SCLS Statute, and \$2,000 for construction. The justification for other than full and open competition must be documented using the SAP J&A template located at https://cg.portal.uscg.mil/units/cg9/1/CG913/CG9131/SAP/SAP%20Library/Enclosures %20for%20SAP%20-%20Revised%20Sep%202014.docx **1.3.16 Independent Government Cost Estimate (IGCE)** Independent Government Cost Estimate (IGCE) is the estimate of the amount required to contract for a proposed government requirement. The IGCE includes, but is not limited to: (1) an estimate of the labor hours required by the category (program manager, technician, engineer, etc.); (2) an estimate of travel cost (number of trips, destinations, and duration; (3) a listing of other anticipated direct charges, such as equipment, consultants, and computer time; and (4) a total price. IGCEs are the requiring activity's calculation of the price of the item, or service to be procured. IGCEs are derived from any one of the following methods: market research, published catalog price lists, and recent purchases. The IGCE must be coordinated with the KO to ensure validity, thoroughness and accuracy. A simple estimate of current market prices or historical prices may be adequate for requirements up to the SAT. The IGCE is generally used for products, equipment, and simple services that are routinely available on the open market at competitive prices. 10. The unit provides and requires the use of hearing protective devices when personnel enter or work in areas where the operations generate noise levels equal to or greater than 85 dBA continuous or 140 dBA peak sound level. Double hearing protection (e.g., plugs and muffs) is worn in areas where noise levels exceed 96 dBA. 11. Materiel discrepancies requiring repair that do not pose an immediate threat to operational readiness shall be documented using a NCWR and any emergent material discrepancies that impact operational readiness shall be documented via an EAL submitted Discrepancy Report. 12. Normal operation of compressor is the controlled by a Low Pressure Switch (SP). Its purpose is to start and stop the operation of the compressor automatically at a predetermined setting. High Pressure Safety Switch (DP) is used to stop the compressor when the discharge pressure exceeds manufacturer's specifications. 516-4.1.20 REFRIGERANT LIQUID FLOODBACK. A common but serious problem to avoid in operating a refrigerating system is the return of liquid refrigerant to the compressor. This is referred to as liquid floodback. Slugging, floodback, and flooded starts are three ways in which liquid can return to the compressor. These faults may cause serious or catastrophic damage to reciprocating compressors, since the compressor cannot pump liq- uid refrigerant. Often, liquid floodback causes oil to leave the compressor crankcase, which in turn causes loss of lubrication. 13. The MAM Non-Casualty Work Request (NCWR) is used to request external assistance for maintenance issues not urgent in nature and have no immediate impact on unit operational requirements. It is not a CASREP, it is loaded as a Current Ships Maintenance Project (CSMP) into the FLS Work Request module for action by the SFLC Product Line. 14. All discrepancies on a Bravo asset must be corrected or deferred within 24 hours. All deferred maintenance actions **[shall]** be authorized by the Sector Engineering Officer or designated representative prior to release of the asset for a mission. 15. The plan, inventory, procedures, certifications, licenses and permits will be reviewed and determined to be consistent and conformant with Host procedures within 5 working days of submission by the local Environmental Compliance Coordinator (e.g., Facility Environmental Protection Specialist or Unit Environmental Coordinator), and shall be approved prior to the initiation of work. The Contractor shall notify the COR of the time and location of inspections requiring Coast Guard verification 24 hours prior to the inspections, unless such inspections need to be conducted more than 50 road miles from the primary place of contract performance - in which case three working day notice shall be required, in order to make travel arrangements for the CG Inspectors. Time of submission. Submit all CIRs and CFRs for routine inspections and tests within 24 hours after completing the specified inspections and tests. Submit CFRs for unexpected conditions within 24 hours of discovery. In addition, notify the COR at least 24 hours before hot work is begun, Before removing restricted interferences, submit to the COR a written plan for the removal within 48 hours before that process is begun. Submit results of all air monitoring samples to the COR within 24-hours of completing the sampling, or upon receipt of the laboratory test results. Notify the COR 24 hours prior to any planned abatement actions. 16. CG-4 Engineering and Logistics CG-9 Acquisition CG-7 Assistant Commandant for Capability CG-8 Assistant Commandant for Rsources