Aircraft Maintenance: Calibration and Tooling
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Questions and Answers

What is the purpose of regular inspections and calibrations of precision tooling and equipment in aircraft maintenance?

  • To ensure the accuracy of measurements and safety of operations (correct)
  • To comply with regulatory requirements only
  • To extend the lifespan of the tooling and equipment
  • To reduce the frequency of maintenance tasks

    • What information should be included on the label for a precision tool or equipment?

  • The tool's serial number and the maintenance schedule
  • The date last tested, the next inspection or calibration due date, and the authorised person's signature or stamp (correct)
  • The tool's calibration history and maintenance records
  • The date of purchase and the manufacturer's contact information

    • Why is it important to maintain a register for precision tooling and equipment?

  • To comply with regulatory requirements only
  • To monitor the performance of the maintenance team
  • To keep track of the tools' maintenance history (correct)
  • To ensure that tools are not lost or misplaced

    • According to the manufacturer's instructions, what is the preferred frequency for inspections and calibrations?

    <p>At more frequent intervals</p> Signup and view all the answers

    Why is it essential for engineers and technicians to learn to use measuring tools correctly?

    <p>To ensure accurate measurements and avoid errors</p> Signup and view all the answers

    What should be checked before using a precision measuring tool?

    <p>The tool's calibration period</p> Signup and view all the answers

    What is the primary function of a roughing process in filing?

    <p>To alter the size of a part by removing a considerable amount of material</p> Signup and view all the answers

    What determines the rate of cutting and the finish given to the work in filing?

    <p>The depth and spacing of the file's cutting teeth</p> Signup and view all the answers

    What is the smoothest grade of cut of a file?

    <p>Dead smooth</p> Signup and view all the answers

    What is the characteristic of a single-cut file?

    <p>It has one set of parallel teeth</p> Signup and view all the answers

    What is the purpose of varying the direction of the cutting motion in filing?

    <p>To produce a curved surface</p> Signup and view all the answers

    What is the main difference between a single-cut and a double-cut file?

    <p>The arrangement of cutting teeth</p> Signup and view all the answers

    What is the main advantage of using HSS drills compared to CS drills?

    <p>They cause less damage to the cutting edges</p> Signup and view all the answers

    What percentage of cobalt can be found in cobalt steel drills?

    <p>Up to 12%</p> Signup and view all the answers

    Why is it essential to observe the recommended cutting speeds when using cobalt steel drills?

    <p>To prevent premature drill failure and damage to the work piece</p> Signup and view all the answers

    What is the unit of measurement for cutting speed?

    <p>Feet per minute (fpm)</p> Signup and view all the answers

    What determines the rotational speed of the drill in revolutions per minute (rpm)?

    <p>The radial element of the cutting speed</p> Signup and view all the answers

    What is a potential consequence of using the wrong cutting speed?

    <p>Premature drill failure and poor hole quality</p> Signup and view all the answers

    What is the main difference between fine and coarse blades in hacksaws?

    <p>The way the teeth are set on each side</p> Signup and view all the answers

    What is the ideal use of high-carbon steel blades?

    <p>Cutting soft metals and plastics</p> Signup and view all the answers

    What is unique about a tungsten carbide blade?

    <p>It has carbide grains soldered in place</p> Signup and view all the answers

    What is the advantage of a flexible bimetal HSS blade?

    <p>It is more resistant to breakage</p> Signup and view all the answers

    What do the initials HSS stand for?

    <p>High Speed Steel</p> Signup and view all the answers

    What is the range of teeth per inch for a high-carbon steel blade?

    <p>18-32 TPI</p> Signup and view all the answers

    What is the purpose of scribing a circle with the exact diameter of the drill?

    <p>To create a guide for the drill</p> Signup and view all the answers

    What is the advantage of using Method 2 over Method 1?

    <p>It is more accurate</p> Signup and view all the answers

    What is the purpose of cutting grooves with a centre punch, half-round chisel or diamond point chisel?

    <p>To correct the direction of the drill</p> Signup and view all the answers

    Why is it necessary to inspect the work during the drilling process?

    <p>To verify the hole is being drilled in the correct position</p> Signup and view all the answers

    What happens if the drill is not running true during the drilling process?

    <p>The hole will not be concentric with the marking out</p> Signup and view all the answers

    What is the purpose of the 'pop marks' created during the drill marking out process?

    <p>To accurately fix the circumference of the circle</p> Signup and view all the answers

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