2S051 CDC Study Guide Volume 1 URE
Questions and Answers Rated A+
What is the primary purpose of an Air Force Specialty Code (AFSC)?
a) To determine a member's pay grade
b) To specify a member's duty station
✔✔c) To identify a member’s job and related duties
d) To decide the member's uniform type
What is the most common method used to detect leaks in an aircraft fuel system?
a) Thermographic inspection
b) Visual inspection
✔✔c) Pressure test
d) Chemical analysis
Why should aircraft fuel systems be regularly inspected for contamination?
✔✔a) To ensure the fuel system functions properly and prevents damage to engine components
b) To increase fuel efficiency
c) To reduce fuel consumption
1
,d) To improve the aircraft’s speed
What is the purpose of a fluid sampling program in aircraft maintenance?
a) To check for visual defects
b) To monitor the condition of aircraft fluids and identify potential contaminants
✔✔c) To ensure that fluid systems are functioning within required specifications
d) To reduce the need for fluid replacements
How does the use of corrosion inhibitors benefit aircraft maintenance?
✔✔a) They prevent the formation of rust and other types of corrosion on metal surfaces
b) They increase fuel efficiency
c) They help to prevent engine overheating
d) They make aircraft cleaning more efficient
What should be done if an aircraft component is found to be out of tolerance during inspection?
a) Reinstall the component and continue operation
✔✔b) The component should be repaired or replaced according to established procedures
c) The component should be cleaned and returned to service
2
,d) The component should be stored until further inspection
Why is it important for maintenance personnel to follow the manufacturer's technical orders?
✔✔a) To ensure that maintenance is performed correctly and in compliance with Air Force
standards
b) To ensure quick and efficient repairs
c) To reduce the workload of other personnel
d) To speed up aircraft turnaround times
What is a primary function of a jet engine’s compressor section?
a) To regulate the exhaust temperature
✔✔b) To compress the incoming air before it enters the combustion chamber
c) To control the fuel-air mixture
d) To monitor engine temperature
What type of inspection is generally performed before an aircraft departs on a mission?
a) Major overhaul
b) Structural integrity test
3
, ✔✔c) Pre-flight inspection
d) Post-flight inspection
Why are non-destructive testing (NDT) methods used in aircraft maintenance?
✔✔a) To detect internal defects in materials without damaging them
b) To clean aircraft components
c) To improve the appearance of aircraft parts
d) To increase fuel efficiency
What is the most important safety precaution when handling aircraft hydraulic systems?
✔✔a) Wear appropriate personal protective equipment and ensure all pressure is relieved
b) Avoid working in well-ventilated areas
c) Always use gloves when working with any aircraft component
d) Apply lubrication to prevent friction
What is the role of the engine control system in an aircraft?
a) To control the rate of fuel consumption
✔✔b) To regulate engine performance and optimize power output
4
Questions and Answers Rated A+
What is the primary purpose of an Air Force Specialty Code (AFSC)?
a) To determine a member's pay grade
b) To specify a member's duty station
✔✔c) To identify a member’s job and related duties
d) To decide the member's uniform type
What is the most common method used to detect leaks in an aircraft fuel system?
a) Thermographic inspection
b) Visual inspection
✔✔c) Pressure test
d) Chemical analysis
Why should aircraft fuel systems be regularly inspected for contamination?
✔✔a) To ensure the fuel system functions properly and prevents damage to engine components
b) To increase fuel efficiency
c) To reduce fuel consumption
1
,d) To improve the aircraft’s speed
What is the purpose of a fluid sampling program in aircraft maintenance?
a) To check for visual defects
b) To monitor the condition of aircraft fluids and identify potential contaminants
✔✔c) To ensure that fluid systems are functioning within required specifications
d) To reduce the need for fluid replacements
How does the use of corrosion inhibitors benefit aircraft maintenance?
✔✔a) They prevent the formation of rust and other types of corrosion on metal surfaces
b) They increase fuel efficiency
c) They help to prevent engine overheating
d) They make aircraft cleaning more efficient
What should be done if an aircraft component is found to be out of tolerance during inspection?
a) Reinstall the component and continue operation
✔✔b) The component should be repaired or replaced according to established procedures
c) The component should be cleaned and returned to service
2
,d) The component should be stored until further inspection
Why is it important for maintenance personnel to follow the manufacturer's technical orders?
✔✔a) To ensure that maintenance is performed correctly and in compliance with Air Force
standards
b) To ensure quick and efficient repairs
c) To reduce the workload of other personnel
d) To speed up aircraft turnaround times
What is a primary function of a jet engine’s compressor section?
a) To regulate the exhaust temperature
✔✔b) To compress the incoming air before it enters the combustion chamber
c) To control the fuel-air mixture
d) To monitor engine temperature
What type of inspection is generally performed before an aircraft departs on a mission?
a) Major overhaul
b) Structural integrity test
3
, ✔✔c) Pre-flight inspection
d) Post-flight inspection
Why are non-destructive testing (NDT) methods used in aircraft maintenance?
✔✔a) To detect internal defects in materials without damaging them
b) To clean aircraft components
c) To improve the appearance of aircraft parts
d) To increase fuel efficiency
What is the most important safety precaution when handling aircraft hydraulic systems?
✔✔a) Wear appropriate personal protective equipment and ensure all pressure is relieved
b) Avoid working in well-ventilated areas
c) Always use gloves when working with any aircraft component
d) Apply lubrication to prevent friction
What is the role of the engine control system in an aircraft?
a) To control the rate of fuel consumption
✔✔b) To regulate engine performance and optimize power output
4
