Question

Which input device is specifically designed to evaluate thousands of multiple-choice answer sheets where students mark answers by shading circles ?

• A. OCR
• B. OMR
• C. MICR
• D. Barcode Reader

Answer 1

Answer:

B. OMR

Optical Mark Recognition (OMR)

• OMR is a scanning process that detects marks made on specialized paper, typically in the form of filled-in circles or rectangles, to interpret human-marked data.

• The device uses a light source that shines onto the OMR sheet and sensors that detect the reflection. Since filled circles reflect less light than blank areas, the machine identifies the marked positions.

• OMR is primarily used in high-stakes competitive examinations and surveys because it allows for the rapid, accurate, and automated grading of thousands of answer sheets simultaneously.

• Students must use specific markers, such as HB pencils or black ballpoint pens, as the carbon content is essential for the light-sensing technology to register the mark correctly.

• OMR technology has significantly reduced human error in large-scale evaluation processes and is a standard tool in various recruitment and entrance examinations conducted by government bodies and commissions.