Aviation Mechanic - General, Airframe, and Powerplant › I. General › Task H. Mathematics

AM.I.H.R3

Risk management

Rounding off calculations.

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Aviation Maintenance Technician Handbook - General p. 3-6
Chapter 3: Mathematics in Aviation Maintenance › The Decimal Number System › Rounding Off Decimal Numbers
some value that is practical to use. For example, a measurement is calculated to be 29.4948 inches. To use this measurement, we can use the process of “rounding off.” A decimal is “rounded off” by keeping the digits…
Aviation Maintenance Technician Handbook - General p. 3-13
Chapter 3: Mathematics in Aviation Maintenance › Functions of Numbers Chart
radius squared. This is calculated by the formula: A = π × r2. Remember that the radius is equal to one-half of the diameter. Example: A flight deck instrument gauge has a round face that is 3 inches in diameter. What…
Aviation Maintenance Technician Handbook - General p. 3-7
Chapter 3: Mathematics in Aviation Maintenance › The Decimal Number System › Converting Decimal Numbers to Fractions
final hole is reamed to a diameter of 0.763 inches? First, multiply the 0.763 decimal by 64. Next, round the product to the nearest whole number: 48.832 ≈ 49. Use this number (49) as the numerator and 64 as the denominator ... decimal, simply divide the top number (numerator) by the bottom number (denominator). Every fraction has an approximate decimal equivalent. Calculator tip: numerator (top number) ÷ denominator (bottom number) = the decimal equivalent of the fraction. Some fractions when converted to decimals produce…