Have you ever been to an examination where you had to answer multiple-choice questions? If yes, most likely you would have marked your answers on an OMR sheet. OMR or optical mark recognition sheets are special printed forms which have bubbles or boxes for the candidates to mark the answers. However, any printed paper that has bubbles cannot be called an OMR sheet. For understanding OMR sheets, it is important to know about their parameters. Here are some of the features with which you can recognize an OMR sheet.
Important parameters of OMR sheets
Once the OMR sheet is filled by the candidates, it is scanned through an OMR scanner to receive the results. To ensure that you get accurate results, there are some things that need to be correct about the sheet. Let us take a look at the important parameters that distinguish an OMR sheet from a regular printed form.
- The OMR sheet contains in index points usually on its four corners. When scanned, the computer detects these index points and scans the answers accordingly.
- The index points should be black in color and should not be bigger than the size of the answer bubbles.
- While marking the answers, ensure that you use a dark pencil or pen to make sure that the answers are detected accurately. (not relevant here).
- Apart from the area marked with the index points, the OMR sheet has other important parts too. It usually contains a block where the candidate has to fill his/her roll or unique ID number. This is important for the computer to identify the right person. This block may also contain space for things like test ID, test paper code, etc.
In short, the OMR sheet is a technical format that makes evaluating test papers easy and quick too. These parameters are a crucial part of the OMR sheet. Even a small error in printing can cause you to receive inaccurate or wrong answers. Ignorance of these parameters in printing or handling the sheet can cause you to receive inaccurate results.