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When is optical mark recognition more suitable than an ordinary scanner?

Answer and explanation

Correct answer: When filled marks at fixed positions must be evaluated quickly

The governing concept is Optical Mark Recognition, or OMR, which detects darkened marks in predefined locations rather than interpreting ordinary pictures or handwriting. On a multiple-choice answer sheet, the machine checks each expected bubble and records whether it is marked, making rapid and consistent checking possible. Thus option B is correct. Video, sound, and cooling in A, C, and D are unrelated to OMR.

Related tags

IctOmrAnswer-SheetInput-DevicesIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills IArtificial IntelligenceClass 9 Mcq

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