If the assigned exposure time is 60 ms, the actual exposure time should be no more than which value?

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Multiple Choice

If the assigned exposure time is 60 ms, the actual exposure time should be no more than which value?

Explanation:
Exposure-time tolerance is the key idea here. In radiography QA, the actual exposure time should stay within about ±5% of the programmed time. For 60 ms, 5% of 60 is 3 ms, so the maximum allowable exposure time is 63.0 ms. Among the options, 63.0 ms is the largest value that stays within that tolerance, while 66.0 ms would exceed it and the other two are well within the limit but not the upper bound.

Exposure-time tolerance is the key idea here. In radiography QA, the actual exposure time should stay within about ±5% of the programmed time. For 60 ms, 5% of 60 is 3 ms, so the maximum allowable exposure time is 63.0 ms. Among the options, 63.0 ms is the largest value that stays within that tolerance, while 66.0 ms would exceed it and the other two are well within the limit but not the upper bound.

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