USCG Turbine Questions and Answers 2026

USCG Turbine Questions and Answers 2026 (1.4.16.7-5) If you noted a large difference in the pressures indicated by a duplex pressure gage to the fuel oil system strainer, you should shift to a clean fuel oil strainer (1.4.16.7-3) To properly remove the burner tip nut from the burner barrel, the barrel should be held by the fixture on the burner cleaning bench 1.4.16.7-4) Which of the conditions listed would indicate a dirty fuel oil strainer? Decreasing fuel oil pressure at the burner manifold (1.4.4.2-7) What statement is true concerning the illustrated boiler saddle, support and foot? Illustration SG-0015 The illustrated foot is the sliding foot located underneath the front of the water drum (1.4.4.2-3) As shown on the illustrated soot blower diagram, how is the soot blower element rotated? Illustration SG-0023 Manually operated with an endless chain. (1.4.4.2-4) When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013 The source of water is feed water and the source of steam is the superheater outlet. (1.4.4.2-5) As shown on the illustrated soot blower diagram, what item is responsible for opening and closing the steam admission poppet valve at the appropriate times during element rotation? Illustration SG-0023 7 (1.4.4.2-8) What is the name of the nozzle which is associated with the steam drum and is shown in the illustration? Illustration SG-0006 Feed inlet nozzle (1.4.4.2-6) As shown on the illustrated huddling chamber type safety valve drawing, what item is associated with setting the blow down adjustment? Illustration SG-0018 B (1.4.8.2-2) What is the name of the device pictured in the illustration? Illustration SE-0001 Gear type flexible coupling (1.4.8.2-1) Which of the devices listed is commonly used to compensate for the expansion and minor misalignments occurring between the main turbine rotor and the reduction gear? Gear type flexible coupling 1.4.8.3-4) The component shown in the illustration, labeled "IV", is the __________. Illustration SE-0013 bull gear 1.4.8.3-1) Which of the following methods is used to lubricate main propulsion turbine reduction gears? Oil is sprayed through nozzles at the point of gear mesh. (1.4.8.3-3) The component shown in the illustration, labeled "I", is the __________. Illustration SE-0013 first reduction gear (1.4.11.1-4) The main turbine gland sealing system is designed to ______ o(a) allow minimal steam leakage out of the gland o(b) regulate steam pressure to the glands when the main turbine is operating at reduced speeds o(c) seal the turbine shaft against air leakage into the turbine casing •(d) all of the above (1.4.11.1-2) Gland sealing steam is used during steam turbine operation to prevent the loss of _________ vacuum (1.4.11.1-8) For the gland seal regulator shown in the illustration, an increase in gland seal pressure will result in ________. Illustration SE-0019 piston 'F" moving upward to shut the makeup steam valve "B" and open the exhaust valve "E" (1.4.11.1-1) Which of the listed conditions aids in directing gland leak off steam from the low pressure propulsion turbine to pass through the gland exhaust condenser? The use of a gland exhauster fan (1.4.11.1-7) As shown in the illustration, live steam is supplied to the gland seal regulator via ________. Illustration SE-0019 line "C" 1.4.17.1-3) What method of burner light-off presents the greatest danger to boiler flareback? Lighting-off from hot brick work (1.4.17.1-1) In what part of a main boiler fuel oil service system is it permissible to raise the temperature of the fuel above the flash point? Between the fuel oil service heater and the boiler burner atomizers. (1.4.17.1-8) Fuel piping should be regularly inspected for leaks. What leak location would be particularly troublesome in terms of presenting a fire hazard? Fuel oil service pump discharge strainer. (1.4.17.1-10) When transferring fuel from a fuel storage tank to a fuel oil settling tank, what is the best protection against an oil spill? Sounding the settling tank more often as the level rises and stopping the transfer before completely filling the tank (1.4.17.1-9) Where do fuel oil vapors tend to accumulate in an engine room? In the lower engine room spaces, especially in the bilges. 1.4.17.1-4) Prior to initial light-off of an idle boiler, what must first be done to prevent boiler flareback? The furnace must first be purged of combustible vapors with the forced draft blower while the air register doors are open 1.4.4.4-7) Which statement is true concerning the operation of item 12 on the illustrated air register and burner assembly? Illustration SG-0016 The air register doors should be fully open for an individual burner that is lit and fully closed for an individual burner that is idle. 1.4.4.4-4) Which of the following labeled items of the illustrated air register and burner assembly represents the poke hole cover and would be temporarily removed to poke through a clinker? Illustration SG-0016 13 (1.4.4.4-8) What size drill is used to drill the orifice of the sprayer plate of the illustrated atomizer? Illustration SG-0022 number 38 drill bit 1.4.4.4-2) Which of the following labeled items of the illustrated section of boiler refractory represents the insulating brick? Illustration GS-0003 1 (1.4.4.4-6) Which of the following labeled items of the illustrated air register and burner assembly represents the means by which the flame may be visually checked for color and condition? Illustration SG-0016 14 (1.4.4.4-5) Which of the following labeled items of the illustrated air register and burner assembly represents the mechanism for operating the register air doors? Illustration SG-0016 12 (1.4.4.4-1) Which of the following labeled items of the illustrated section of boiler refractory represents the insulating block? Illustration GS-0003 7 (1.4.6.1-3) The cooling water flow from an air ejector inter condenser and after condenser is discharged directly into the __________. condensate and feed system (1.4.6.1-5) Which statement is true concerning two-stage air ejector assemblies? The steam/air mixture from the main condenser is discharged by the first stage air ejector to the inter condenser.