VSS stands for which type of sonar?

• A. Volume Search Sonar
• B. Forward Looking Sonar
• C. Side Looking Sonar
• D. Mine Detecting Sonar

Answer: (A)

Volume Search Sonar is designed to search a three‑dimensional volume of water, using multiple beams to cover depth, range, and bearing so a vessel can detect submerged targets throughout a volume rather than just on a plane. That direct mapping of the acronym is why this option is the correct one for VSS. Forward Looking Sonar scans ahead to detect obstacles or targets in the vessel’s path, which is a different purpose. Side Looking Sonar maps the seabed to the sides of the vessel, producing side‑scan imagery rather than a volumetric search. Mine Detecting Sonar is specialized for locating mine-like objects, whereas Volume Search Sonar provides the broader volumetric search capability suggested by the term VSS.