OMR sheet
A printed answer sheet where candidates fill in bubbles that a machine reads.
What is an OMR sheet?
An OMR sheet lets large exams be marked quickly and accurately. Candidates darken a bubble for each answer and a scanner records the choices.
Stray marks or partly filled bubbles can be misread, so students should practise filling the sheet neatly.
Full form
OMR stands for Optical Mark Recognition.