Exam Question
Write short notes on the following Non Destructive tests:
(a) Dye Penetrant test (5)
(b) Magnetic particle examination (5)
(c) Radiography Test (6)
Class 4 (4th Engineer)
MEP
📅 Oct 2022
Reference Answer
### (a) Dye Penetrant Test (DPT)
**1. Principle:**
The Dye Penetrant Test is a non-destructive method used to locate surface-breaking defects in non-porous materials. The principle is based on **capillary action**, where a low surface tension liquid (the penetrant) seeps into clean, dry surface-breaking discontinuities, such as cracks, laps, and porosity.
**2. Applicability:**
**1. Principle:**
The Dye Penetrant Test is a non-destructive method used to locate surface-breaking defects in non-porous materials. The principle is based on **capillary action**, where a low surface tension liquid (the penetrant) seeps into clean, dry surface-breaking discontinuities, such as cracks, laps, and porosity.
**2. Applicability:**
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