Turbine Overhaul (OH) Test 1 Practice

These questions are part of the practice quiz. Start practicing

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