What is the degree mark scale on a protractor used in field navigation?

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Prepare for the Field Medical Training Battalion – East (FMTB-E) Annex E Test with detailed questions, flashcards, and in-depth explanations. Hone your skills and get exam ready!

Multiple Choice

What is the degree mark scale on a protractor used in field navigation?

Explanation:
Field navigation relies on measuring azimuths around a full circle, so the protractor used must have a 0–360 degree scale. This full-circle scale lets you express any bearing from north all the way around to north again, with 0/360 degrees at north, 90 at east, 180 at south, and 270 at west. Scales that cover only half of the circle (0–180, 90–270, or 180–360) would not uniquely represent all possible directions and could cause ambiguity or extra steps to convert bearings.

Field navigation relies on measuring azimuths around a full circle, so the protractor used must have a 0–360 degree scale. This full-circle scale lets you express any bearing from north all the way around to north again, with 0/360 degrees at north, 90 at east, 180 at south, and 270 at west. Scales that cover only half of the circle (0–180, 90–270, or 180–360) would not uniquely represent all possible directions and could cause ambiguity or extra steps to convert bearings.

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