ASNT Industrial Radiography Radiation Safety Practice Test

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Prepare for the ASNT Industrial Radiography Radiation Safety Test with our practice questions. Use flashcards and multiple choice questions, with hints and explanations for each question. Get ready to ace your exam!

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At a dose rate of 60 mR/h, what would be the total exposure after 1 hour?

30 mR
60 mR
90 mR
120 mR

The correct answer is: 60 mR

To determine the total exposure at a dose rate of 60 mR/h over a period of 1 hour, you simply multiply the dose rate by the amount of time in hours. Since the dose rate is 60 mR/h, after 1 hour, the total exposure would indeed be 60 mR. This straightforward calculation highlights a key aspect of radiation exposure principles: when the dose rate is constant, the total exposure can be calculated by using the formula: Total Exposure (mR) = Dose Rate (mR/h) × Time (h) By applying this formula, you see that when the dose rate is 60 mR/h and the time is 1 hour, the total exposure is precisely 60 mR. This reinforces the understanding of how radiation dose accumulates over time, emphasizing the importance of monitoring dose rates in radiation safety practices.