ASNT Industrial Radiography Radiation Safety Practice Test

What is the range that a survey meter must measure in industrial radiography?

1. 1 mR/h through 1 R/h

2. 2 mR/h through 5 R/h

3. 2 mR/h through 1 R/h

4. 5 mR/h through 10 R/h

The correct answer is: 2 mR/h through 1 R/h

In industrial radiography, survey meters are essential tools for measuring ionizing radiation exposure levels in a work environment. The correct answer of 2 mR/h through 1 R/h encompasses the typical range of radiation levels encountered during radiographic operations. This range is significant because it provides adequate sensitivity for detecting lower levels of radiation (as low as 2 mR/h), which is crucial for safety monitoring and ensuring that radiation exposure does not exceed permissible limits for personnel. Additionally, measuring up to 1 R/h accommodates higher radiation exposure levels that might occur during certain operations or near radioactive sources commonly used in industrial radiography. By having a survey meter that effectively measures within this range, radiographers can ensure reliable monitoring of radiation levels, thus enhancing both personnel safety and compliance with regulatory standards.