Exam Question
Describe following non destrutive methods:
(a) Radiographic Inspection - principle, method in detail. (8)
(b) Ultrosonic Inspection - principle, method in detail. (8)
Class 4 (4th Engineer)
MEP
📅 Dec 2023
Reference Answer
### (a) Radiographic Inspection (RT)
#### **Principle (4 Marks)**
Radiographic Testing is a non-destructive testing (NDT) method that utilizes penetrating ionizing radiation (either X-rays or Gamma rays) to examine the internal structure of an object. The fundamental principle is based on the **differential absorption of radiation** by the material being inspected.
* **Radiation Attenuation:** As the radiation passes through the object, its intensity is reduced (attenuated). The degree of attenuation depends on the material's **density** and **thickness**. Denser or thicker sections will absorb more radiation than less dense or thinner sections.
#### **Principle (4 Marks)**
Radiographic Testing is a non-destructive testing (NDT) method that utilizes penetrating ionizing radiation (either X-rays or Gamma rays) to examine the internal structure of an object. The fundamental principle is based on the **differential absorption of radiation** by the material being inspected.
* **Radiation Attenuation:** As the radiation passes through the object, its intensity is reduced (attenuated). The degree of attenuation depends on the material's **density** and **thickness**. Denser or thicker sections will absorb more radiation than less dense or thinner sections.
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