How many scales does the military protractor contain, and what are they?

How many scales does the military protractor contain, and what are they?

• A. Two scales: degrees on the inner scale and mils on the outer scale.
• B. One scale only: degrees.
• C. Three scales: degrees, mils, and gradians.
• D. Four scales: degrees, mils, gradians, and radians.

Answer: (A)

Two scales are built into the military protractor to support reading directions in two common measurement systems at once. The inner edge is marked in degrees from 0 to 360, while the outer edge is marked in mils, typically from 0 to 6400 for a full circle. This arrangement lets you read a bearing in degrees on the degree scale and instantly know the corresponding value on the mil scale, which is especially useful for artillery calculations and land navigation where mils are often used. Since 1 degree is about 17.78 mils, both scales stay aligned along the same radial lines, making quick conversions straightforward. The other options aren’t correct because this standard tool provides two scales, not just one, and it doesn’t rely on three or four different measurement units.

Two scales are built into the military protractor to support reading directions in two common measurement systems at once. The inner edge is marked in degrees from 0 to 360, while the outer edge is marked in mils, typically from 0 to 6400 for a full circle. This arrangement lets you read a bearing in degrees on the degree scale and instantly know the corresponding value on the mil scale, which is especially useful for artillery calculations and land navigation where mils are often used. Since 1 degree is about 17.78 mils, both scales stay aligned along the same radial lines, making quick conversions straightforward. The other options aren’t correct because this standard tool provides two scales, not just one, and it doesn’t rely on three or four different measurement units.