| Eddy Current Test | Penetrant Test | Magnetic Particle Test | Visual Test |
| Radiographic Test | Ultrasonic Test | Magnetic Flux Leakage Test | Visual Test Using Fibrescope |
| Visual Test Using Fibrescope | Principle Application Advantage Limitation | ||
| Principle | Back | ||
| A type of visual inspection by employing industrial fibrescope to access the area which is not easy to approach. | |||
| Application | - | To enable visual test to inaccessible area. | Back |
| Advantage | - | Enable assessment of surface condition of inaccessible area | Back |
| Limitations | - | Limited to the visual acuity of the observer/inspector. | Back |
| - | Limited to external or surface conditions of test surface only. | ||