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For what distance, videoscopes are used with CCD probes for electronic transmission?

(a) Less than 15 m

(b) More than 15 m

(c) Less than 10 m

(d) More than 10 m

This question was posed to me in an interview for job.

This is a very interesting question from Visual Inspection topic in division Machine Vision Systems of Engineering Metrology

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Right answer is (b) More than 15 m

Easiest explanation: For more than 15 meter distance, videoscopes with CCD probes or charge coupled device probes are used for electronic transmission of black and white or colour images to a video monitor.

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