Aviation Maintenance and Engine Systems
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Flashcards created for review based on lecture notes covering aviation maintenance and engine system concepts.
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49 Terms
What can be used to repair minor damage such as nicks, burrs, or scratches to a crankcase?
Fine oil stone or crocus cloth.
Which of the following is a possible repair function to crankshafts?
Reground, nitrided journals.
Can crankshafts that have a bent main journal be straightened?
False.
What should be done to an aircraft engine or component before inspection?
None of the above.
What should be done with sludge chamber plugs?
Removed, cleaned, and reused.
What factor determines if a broken fin is repairable?
Square inch of damaged fin.
What is the purpose of honing on cylinders?
To provide a precision surface to cylinder barrels.
What may be done to a cylinder barrel that has excessive taper or out of roundness?
It may be reground to the next allowable oversize.
What are the critical areas of a valve?
Face and Tip.
Which reference should be used on hardware in reassembly?
Illustrated Parts Catalogue (IPC).
In what order should the piston rings gaps be installed?
None of the above.
What should a mechanic consult to determine the maximum amount of cylinder cooling fin that should be removed?
Engine manufacturer service and overhaul manual.
Why is troubleshooting important for an Aviation maintenance technician?
It is one of the most important skills to develop.
What can systematic troubleshooting save?
Hours of time and prevent components from being needlessly replaced.
What are the three main sections of a Gas Turbine Engine?
Turbine, Compressor, and Combustion.
What is the correct order of rules for systematic troubleshooting?
Know the system, Observe the system, Divide the system, Look for obvious problems.
What are the three requirements for engine start?
Air, Fuel, Spark/igniter.
What does the designation R680 mean?
Radial and 680 cubic inches of displacement.
In a propeller gear ratio of 3:2, what do the numbers represent?
3 is the crankshaft, 2 is the propeller.
What is the compression ratio if the cylinder volume equals 90 cubic inches at BDC and 10 cubic inches at TDC?
9:1.
What is the compression ratio defined as?
The ratio between the cylinder volume of the piston at bottom dead center and top dead center.
What is troubleshooting?
Finding a solution to a problem.
What is the Brayton cycle commonly known as?
The constant pressure cycle, Joule cycle, the continuous combustion cycle.
What is Newton's 1st Law of Motion?
An object that is at rest will stay at rest unless an unbalanced force acts upon it.
What can be used to repair minor damage such as nicks, burrs, or scratches to a crankcase?
Fine oil stone or crocus cloth.
Which of the following is a possible repair function to crankshafts?
Reground, nitrided journals.
Can crankshafts that have a bent main journal be straightened?
False.
What should be done to an aircraft engine or component before inspection?
None of the above.
What should be done with sludge chamber plugs?
Removed, cleaned, and reused.
What factor determines if a broken fin is repairable?
Square inch of damaged fin.
What is the purpose of honing on cylinders?
To provide a precision surface to cylinder barrels.
What may be done to a cylinder barrel that has excessive taper or out of roundness?
It may be reground to the next allowable oversize.
What are the critical areas of a valve?
Face and Tip.
Which reference should be used on hardware in reassembly?
Illustrated Parts Catalogue (IPC).
In what order should the piston rings gaps be installed?
None of the above.
What should a mechanic consult to determine the maximum amount of cylinder cooling fin that should be removed?
Engine manufacturer service and overhaul manual.
Why is troubleshooting important for an Aviation maintenance technician?
It is one of the most important skills to develop.
What can systematic troubleshooting save?
Hours of time and prevent components from being needlessly replaced.
What are the three main sections of a Gas Turbine Engine?
Turbine, Compressor, and Combustion.
What is the correct order of rules for systematic troubleshooting?
Know the system, Observe the system, Divide the system, Look for obvious problems.
What are the three requirements for engine start?
Air, Fuel, Spark/igniter.
What does the designation R680 mean?
Radial and 680 cubic inches of displacement.
In a propeller gear ratio of 3:2, what do the numbers represent?
3 is the crankshaft, 2 is the propeller.
What is the compression ratio if the cylinder volume equals 90 cubic inches at BDC and 10 cubic inches at TDC?
9:1.
What is the compression ratio defined as?
The ratio between the cylinder volume of the piston at bottom dead center and top dead center.
Troubleshooting is one of the most important in Aviation maintenance technicians should develop…
True
What is troubleshooting?
Finding a solution to a problem.
What is the Brayton cycle commonly known as?
The constant pressure cycle, Joule cycle, the continuous combustion cycle.
What is Newton's 1st Law of Motion?
An object that is at rest will stay at rest unless an unbalanced force acts upon it.