Which grid system is commonly used for global transverse projection and divides the world into zones?

• A. Military Grid (UTM)
• B. Transverse Mercator Grid
• C. British Grid
• D. Orthomorphic Grid

Answer: (A)

Universal Transverse Mercator is the grid system designed for a worldwide, zone-based mapping approach. The globe is divided into 60 longitudinal zones, each 6 degrees wide, and each zone uses its own transverse Mercator projection with a central meridian. That setup keeps distortion small within every zone and provides consistent easting and northing coordinates from a zone-specific false origin. This zone scheme, and the resulting grid references, is widely used in both civilian mapping and military contexts (the Military Grid Reference System is built on this same framework). Other options don’t describe a global zone-based division: a national grid covers only a country, and a generic Transverse Mercator grid lacks the standardized, worldwide zone structure.