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Subject area H of 12

Mathematics

5-10% of the A&P General test, about 3 to 6 of the 60 questions. The FAA's test standard lists 13 knowledge elements and 3 risk management elements for this area. Here is every one, plus sample questions to try.

What the FAA tests

From the aviation mechanic test standard, FAA-S-ACS-1.

Knowledge: what you must know

  • AM.I.H.K1Areas of various geometrical shapes.
  • AM.I.H.K2Volumes of various geometrical shapes.
  • AM.I.H.K3Definitions, descriptions and use of geometrical terms, including but not limited to any of the following: polygon, pi, diameter, radius, and hypotenuse.
  • AM.I.H.K4Ratio problems, including examples of where or how they may be used in relation to aircraft maintenance or system(s) operation.
  • AM.I.H.K5Proportion and percentage problems, including examples of where or how they may be used in relation to aircraft maintenance or system(s) operation.
  • AM.I.H.K6Algebraic operations, including examples of where or how they may be used in relation to aircraft maintenance.
  • AM.I.H.K7Conditions or areas in which metric conversion may be necessary.
  • AM.I.H.K8Scientific (exponential) notation, decimal notation, fractional notation, binary notation, and conversion between these various forms of numeric notation.
  • AM.I.H.K9Rounding numbers.
  • AM.I.H.K10Powers and special powers.
  • AM.I.H.K11Measurement systems.
  • AM.I.H.K12Use of positive and negative integers in mathematical operations.
  • AM.I.H.K13Basic mathematic functions (addition, subtraction, multiplication, division).

Risk management: hazards you must be able to spot and manage

  • AM.I.H.R1Precedence of operations when solving an algebraic equation.
  • AM.I.H.R2Use of both positive and negative integers in mathematical operations.
  • AM.I.H.R3Rounding off calculations.

Try a sample question

Mathematics ยท AM.I.H.K12

An airplane's empty weight is 1,654 pounds. You remove a 23-pound seat and a 9-pound radio, then install a 15-pound emergency locator transmitter. Using a minus sign for weight removed and a plus sign for weight added, what is the new empty weight?

Practice all of mathematics

The full course has questions on every element listed here, with an explanation and FAA source for each.

See the courseFree mock test