Turbine Overhaul (OH) Test 1 Practice

These questions are part of the practice quiz. Start practicing

• DOD pertains to turbine engines or turbine auxiliary power units and refers to objects identified on the manufacturer's parts list or diagram as being parts of the engine or accessories to the engine or APU. This definition describes DOD as objects that are parts of what?
• Where would you find the info for timed tracked parts?
• Flight time is the
• Which option is NOT listed as a repair process?
• Which statement best describes FPI?
• Scheduled inspections are based on what time or cycle?
• Taxiing before takeoff and after landing is included in flight time?
• Does an abrasive grit wash fully clean hot section parts?
• Ground running for engine testing without flight will accumulate time.
• Letter Check includes which of the following components?
• If all factors above are favorable then TBO may be extended or eventually eliminated, allowing overhauls to be performed on what basis?
• Can a scheduled inspection become an unscheduled inspection?
• What surface should you NOT use electrolytic etch marking on?
• Stress rupture cracks usually appear on turbine blades at which location?
• What term describes the time from gate departure to gate arrival?
• Which statement about Hot Section inspection is true?
• Which statement about marking static parts during disassembly is accurate?
• The service management plan defines what?
• The Hot Section Inspection interval is determined by what?
• Which action is not listed as part of the blade blending process?
• Which of the following is NOT a listed temporary marking method?
• Which statement about Special Inspection is true?
• Can trichloroethylene be used on titanium?
• What three plans must be established for the integrity of each life-limited part?
• What is the FAA definition of an engine cycle?
• All turbine engine inspections and maintenance are approved by the manufacturer and fall under FAA guidelines IAW Title which?
• What is the simplest blade replacement method to maintain balance?
• List the events of an engine cycle
• Is it true that 70-80% of performance loss in an operating gas turbine can be attributed to compressor fouling?
• Modular engines __ ___ have a set TBO for the complete engine.
• Which of the following is NOT a non-dimensional inspection method?
• Service Check includes Layover plus what?
• Does the engine run during a fluid wash?
• During a wet motor check, the engine is spooled with fuel, w/o igniters. Primes and leak checks which system?
• Who actually establishes TBO?
• Can bits of carbon build-up break free from nozzles or ice shards break away from the inlet and cause gradual erosion damage?
• In a wet motor check, which statement is true?
• Which of the following is a type of permanent marking?
• Which of the following is NOT a type of borescope?
• What does a typical fluid wash involve?
• Which inspections include Borescope inspection and Life Limited Parts replacement?
• What determines the extent of an over-temperature inspection?
• Which plan provides manufacturing constraints to produce life-limited parts?
• What is the FAA definition of flight time?
• Types of temporary markings: Which is a type of temporary marking?
• What are 2 categories of inspections that can be used on turbine engine parts?
• What is the TBO definition?
• X-ray inspection is recommended for which parts?
• During disassembly, you should do what to engine parts?
• Which term describes metal transfer between rubbing surfaces due to fretting?
• Which of the following is NOT a hot section component for inspection?
• Which of the following is an example of a Special Inspection?
• Who recommends TBO?
• Which action is explicitly listed as the final step in the blade blending process?
• Which surfaces are specifically mentioned as being susceptible to fouling?
• Which of the following best describes line or on-wing maintenance?
• The FAA definition of a flight cycle is
• Ink Marking: Which statement is true?
• During hot-section blade inspection, which procedure may be required?
• Blade Twist/Warpage is caused by ___?
• Among permanent marking methods, which is described as the newest type?
• A ______ is used to perform inspections to ____ areas of a turbine engine by inserting it through special ____ in the engine cases
• Who is authorized to perform overhaul?
• What are some types of parts that will have life limits?
• What is a risk of excessive heat in a gas turbine engine?
• Which plan describes steps to withdraw life-limited parts from service?
• For carriers operating under 14 CFR Part 121, CAMP is ...
• Blade Creep is best described as:
• During hot section disk inspection, what is the consequence of finding any cracks?
• All maintenance and inspections are based on what criteria?
• What is the final action in the blade blending process?
• Serviceable limits for damaged turbine blades are more strict than those for turbine nozzle vanes. True or False?
• Which factors define the extent of an over-torque inspection?
• Which option is explicitly listed as a factor under Types of Cleaning?
• Which statement is true about cycle definitions?
• Which of the following is a factor in determining the type of cleaning?
• What happens if damage is determined to be non repairable?
• Which of the following represents a listed engine removal and replacement reason?
• What instrument is used to check blade stretch from centrifugal loading?
• Which step in the blade blending sequence directly enables detection of surface cracks?
• What are the two methods of compressor field cleaning?
• Abrasive grit wash uses which materials?
• What does the service management plan define?
• Special Inspection is best described as which of the following?
• During an over-speed inspection, which condition describes when the extent of inspection is determined?
• Nylon / fiber-locks are allowed in the engine hot section compartment.
• Which temporary markings should you NEVER USE?
• Non Routine (Unscheduled) maintenance is defined as:
• Which of the following is an example of a Special Inspection?
• Stress rupture cracks are caused by overtemperature and usually appear on which part of the blade?
• What does compressor fouling occur from?
• Blade Creep is caused by which loads?
• Plain water rinse may be used to desalinate if operating in a salty environment. What is the intended result?
• Layover Check includes which components?
• Which option best describes the dry motor check?
• Which statement describes the difference between a flight cycle and an engine cycle?
• One purpose of cleaning is to remove coatings in order to permit inspection of base material. Which option reflects this concept?
• What is the main reason for a blade tip clearance inspection?
• Which statement describes Major (Heavy or Shop) maintenance for aircraft engines?
• TRUE OR FALSE. Can some static parts move after supporting parts are removed?
• Electrolytic Etch: Which statement describes it?
• Are nylon or fiber-locks allowed in the engine hot section compartment?
• Blade replacement uses which principle: weight-moment equality?
• Can a plastic bag be considered FOD?
• Why are life-limited parts required on a turbine engine?
• An abbreviated cycle is defined as?
• To determine the scope of an over-temperature inspection, which reference should be consulted?
• In a dry motor check, which system is primed and leak checked?
• How should the disk in the hot section be inspected?
• Go/no-go gauges are used to verify whether a dimension is within tolerance.
• Which items are considered corrosive elements?
• During an abrasive grit wash, is the engine operated while the wash is performed?
• Domestic Object Debris (DOD) means with respect to turbine engines or turbine auxiliary power units, if part of the aircraft, objects or substances identified on the manufacturer's parts list or diagram as being parts of the engine or accessories to the engine or auxiliary power unit.
• Torque specifications in the manual are determined by which factors?
• Which of the following is a blade damage form listed in the hot-section damage types?
• Hot Section Inspections are governed by what constraint?
• What does FPI aim to find?
• What is the definition of On Condition maintenance?
• What does a Service Check include?
• In the turbine overhaul steps, which step is the final stage?
• What is the final step described in a fluid wash process?
• Flight cycle is the
• Foreign Object Debris (FOD) refers to:
• Not performing compressor field cleaning can lead to which consequences?
• What normally causes stress rupture cracks?
• What statement best describes the outcome when a turbine blade experiences creep under sustained heat?
• During a fluid wash, what type of water is used?
• What is the primary purpose of compressor field cleaning?
• Which phenomenon is described by particles entering through the inlet or gas stream and striking surfaces?
• What is the primary purpose of cleaning?
• Which statement best describes flight time?
• Which of the following is a hot section component for inspection?
• Ink Marking Note: The note states that you should NOT use ink marking in which scenario?
• Temporary marking can use ____ ONLY what is allowed by the manufacturer.
• Which class of fire involves liquids?
• Three plans together govern the integrity of life-limited parts. Which set of plans is correct?
• Before the first run-up, engine and aircraft log-books are checked for which item?
• Letter Checks are inspections that occur at specified intervals and are based on what?
• If cracks are found on a hot-section blade, what action is taken?
• Which step immediately follows Cleaning in the turbine overhaul steps?
• Can an engine exceed 100% RPM without requiring an inspection, provided maintenance and flight manual guidelines are followed?
• Galling is described as which of the following?
• In the blade blending steps, what is performed immediately after blending and before FPI?
• TRUE OR FALSE: Some static parts may move after supporting parts are removed.
• Which of the following is a cold section component for inspection?
• What is the definition of erosion in a gas turbine context?
• When should FPI be performed?
• Which statement about Cold Section inspection is true?
• The Layover Check comprises which of the following?
• Is it true that 70-80% of performance loss is due to erosion?
• DOD stands for Domestic Object Debris and refers to debris related to which systems?
• Is it accurate to say that carbon build-up or ice shards can contribute to erosion damage?
• Which statement is true about the acronym FPI?
• What effect does Foreign Object Damage have on the airstream?
• Which device is used to quickly determine if a feature is within tolerance without providing an exact measurement?
• Cracks in a turbine blade are cause for _____ of the blade.
• Why must operating limitations be established?
• What is considered line or on-wing maintenance?
• CAMP stands for what and CFR does it follow?
• Can an engine go over its set parameters?
• When unstacking/disassembly an engine, which parts should you mark with a stack line?
• How should FOD be prevented?
• What triggers FPI according to the procedure?
• Where to work around running engines. What is the orange zone called?
• How should static parts be marked during disassembly?
• What is human error?
• Which maintenance level corresponds to 'Line' or 'On wing'?
• What is the primary purpose of using a borescope?
• What does the engineering plan contain?
• FOD can be large or small and isn't always easily identified. Which statement describes this characteristic?
• What is the MOST CRITICAL portion of overhaul process?
• What is one of the most widely found forms of damage in the hot section of a gas turbine engine?
• What proportion of engine performance loss is associated with compressor fouling according to the material?
• Which of the following is NOT listed as a damage type for turbine blades in the hot section?
• Which of the following is commonly a life-limited part in a turbine engine?
• What does Foreign or Domestic Object Damage refer to in turbine operation?
• Which of the following is a Cold Section Component for inspection?
• Touch and go for maintenance flights count as a cycle?
• Routine (Scheduled) maintenance is characterized by:
• How is a blade's moment-weight defined?
• Which statement about laser etching is true?
• Where is FOD most found?
• In re-assembly after overhaul, what is the correct order of steps?
• Which statement best describes the orange zone around running engines?
• In the blade blending process, what determines whether a blade should be repaired or replaced?
• Which of the following lists the three types of borescopes?
• Which maintenance level corresponds to 'Heavy' or 'Shop'?
• What does the manufacturing plan identify?
• Which statement is true regarding blade damage types?
• Which party should participate in the TBO decision according to the material?
• What does 'on condition basis' imply for inspections?
• What is the taxiing time also called?
• For a rotor with an even number of blades, how many blades are replaced and what is the spacing between them?
• CAMP stands for which phrase?
• Dimensional inspection uses which set of tools?
• Which item is explicitly included in documented records after blade blending?
• CAMP follows which CFR for Part 121 operations?
• What does FPI detect?
• For a rotor with an odd number of blades, how many blades are replaced and what is the spacing between them?
• Which class of fire involves electrical equipment?
• Which statement best describes the cause of corrosion in turbine systems?
• Block to block time is best described as
• Stress rupture cracks on turbine blades are caused by overtemperature and usually appear on the leading edge. Which option best reflects this statement?
• Which class of fire involves solids?
• What is the consequence of continued heat exposure on turbine blades?
• What is the difference between a flight cycle and an engine cycle?
• Which of the following is listed as a reason for engine removal and replacement?
• Which statement about the relationship between temperature, time, and inspection scope for over-temp events is correct?
• Maintenance has two levels. What are they?
• Which step in the turbine overhaul sequence involves putting components back together?
• Stress Rupture Cracks usually appear as:
• What is the first step in completing turbine overhaul?
• If over-speed, Sudden Stoppage, FOD, or over-torque occur, what might happen to cold section inspection?
• Which statement best describes turbine engine inspections approvals?
• After performing FPI, which action might be required if necessary?
• What does FPI stand for?
• Temporary markings include chalk, soapstone, ink markers with TEC marking, approved marking pencil (silver pencil), and tags/tape. Which of the following is a legitimate temporary marking option?
• Which statement best distinguishes the two compressor cleaning methods?
• The approved marking pencil (silver pencil) is categorized under which?
• In the blade blending process, the first step is to determine if damage is within limits and repairable.
• Fan blade shingling refers to which phenomenon?
• Maintenance is broken down into two categories. Which two categories are they?