MPPSC 2013 General Studies Solved Paper-1

(B) Optical Mark Recognition(also called Optical Mark Reading and OMR) is the process of capturing human marked data from document forms such as surveys and tests. They are used to read questionnaires, multiple choice examination paper in the form of lines or shaded areas. Many traditional OMR devices work with a dedicated scanner device that shines a beam of light onto the form paper. The contrasting reflectivity at predetermined positions on a page is then used to detect these marked areas because they reflect less light than the blank areas of the paper.