Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Gas Turbines (Set 3)

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Question 1 of 30

Which of the following terms refers to thermal energy in transition?

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30 MCQs

#1 Which of the following terms refers to thermal energy in transition? #2 Kelvin is the absolute temperature scale that corresponds to which of the following? #3 What is the term given to a process that occurs without a loss or gain of heat? #4 Which of the following is the definition of absolute temperature? #5 What is the purpose of the spring in a lip-type oil seal? #6 What type of air seal is used in the combustor and turbine mid-frame of a gas turbine? #7 What type of seal is used in the gearbox of a gas turbine engine? #8 What type of air seal is used in the sump and turbine areas of a gas turbine engine? #9 Which of the following statements is true concerning the fuel oil ignition system of the gas turbine engine shown in the illustration? Illustration GT-0017 #10 In comparing a centrifugal-type to an axial-type compressor, which of the following statements is true? #11 The two basic types of compressors used in gas turbine engines are which of the following? #12 Rotation of the Controllable Pitch Propeller (CPP) blades is achieved through axial movement of what component in the hub body assembly? #13 The fuel oil system of a gas turbine engine provides all EXCEPT which of the following? #14 Gas turbine fuel manifold pressure is established by which of the following actions? #15 Before combustion can occur, the combustion air must be delivered to the combustor at a high-pressure and low-velocity. High-velocity, low-pressure air is converted to high-pressure, low-velocity air at what part of a centrifugal type compressor? #16 In a centrifugal compressor, which component reduces the velocity and increases the static pressure of the air? #17 Which of the following wrenches should NOT be used while working on a gas turbine? #18 Which of the following instruments is designed to help you when performing an internal inspection of the gas turbine engine? #19 The only hand tools that should be used on gas turbine engines are chrome plated, nickel plated, or which of the following? #20 Wrenches that are recommended for use on gas turbine engines should be plated with which of the following elements? #21 How is the clutch shown in the attached illustration engaged? Illustration GT-0018 #22 The term "lockout" on the Synchro-Self-Shifting (SSS) clutch system means that the _________. #23 How do you manually lockout an SSS clutch? #24 Which of the following statements is true about the "lockout control" on a Synchro-Self-Shifting (SSS) clutch? #25 For the GE LM2500 gas turbine engine shown in the illustration, the HP turbine 1st stage nozzle vanes are cooled by which of the following? Illustration GT-0020 #26 Turbine disks are commonly attached to the shaft by which of the following methods? #27 To keep the exit pressures relatively constant across a HP turbine blade, which type of construction is generally utilized? #28 HP turbine blades are generally cooled by which of the following methods? #29 Which of the following designs is the most satisfactory method for attaching turbine blades to the rotor disk? #30 "Standard Day" conditions, as defined by the ISO, is which of the following?

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