With a test, an OMR device first scans the answer key to record correct answers based on patterns of light, then scans the remaining documents and matches their patterns of light against the answer key sheet.

Name: With a test, an OMR device first scans the answer key to record correct answers based on patterns of light, then scans the remaining documents and matches their patterns of light against the answer key sheet.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

This is an accurate description of how an OMR device works in grading tests.

With a Test, an OMR Device First Scans the Answer