ASNT Radiographic Testing Practice Test 2026 – Comprehensive All-in-One Guide for Exam Success!

Question: 1 / 400

What happens to the definition of images as source-to-object distance decreases?

It improves significantly

It becomes more obscure

As the source-to-object distance decreases, the definition of images captured in radiographic testing does indeed become more obscure. This phenomenon occurs because the reduction in distance leads to an increase in the angle at which radiation must interact with the object. As a result, any imperfections or variations, such as those found in the material or the structure being examined, may contribute to a lack of clarity in the resulting image.

Additionally, when the source is closer to the object, the effects of scattering and absorption can more readily distort the image quality, resulting in increased blurriness and less definition. These factors combined mean that the closer you are to the object, the less clear the image will be, which supports the notion that definition declines as the source-to-object distance decreases.

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It remains the same

It sharply declines

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