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 (B)</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 (C)</p> Signup and view all the answers

What should be checked before using a precision measuring tool?

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

What is the smoothest grade of cut of a file?

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

What is the characteristic of a single-cut file?

<p>It has one set of parallel teeth (B)</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 (C)</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 (D)</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 (D)</p> Signup and view all the answers

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

<p>Up to 12% (D)</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 (C)</p> Signup and view all the answers

What is the unit of measurement for cutting speed?

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

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

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

What is unique about a tungsten carbide blade?

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

What is the advantage of a flexible bimetal HSS blade?

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

What do the initials HSS stand for?

<p>High Speed Steel (A)</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 (A)</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 (B)</p> Signup and view all the answers

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

<p>It is more accurate (B)</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 (D)</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 (B)</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 (B)</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 (C)</p> Signup and view all the answers

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