ASNT Industrial Radiography Radiation Safety Practice Test

What is the required accuracy for each reading on a survey meter?

1. 10%

2. 15%

3. 20%

4. 25%

The correct answer is: 20%

The required accuracy for each reading on a survey meter is typically within 20%. This standard is essential for ensuring that the radiation measurements taken in industrial radiography are reliable and can effectively guide safety measures. A survey meter is a crucial tool in monitoring radiation levels in a work environment, directly influencing the safety protocols that need to be implemented. An accuracy of 20% allows for reasonable margin for error, considering the varying conditions under which measurements are taken. This level of accuracy ensures that operators can make informed decisions regarding radiation safety, allowing them to assess potential risks and ensure compliance with safety regulations. An accuracy greater than this could lead to unnecessary safety protocols or, conversely, to dangerous situations if radiation exposure levels are underestimated. Therefore, it's important to maintain this specified level of accuracy for reliable readings during operations.