Question

Which of the following non destructive testing is used to detect change in composition of

any material?

a) Liquid penetration test

b) Ultrasonic test

c) Eddy current test

d) Radiography​

Answer 1

Answer:

B. ultrasonic test

Explanation:

changes that cannot be seen on the exterior, ultrasonic test is taken as the ultrasonic waves go through the material.

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Answer 2

Answer:

The correct option for this question is d) Radiography.

Explanation:

• In order to inspect the interior structure of produced components and find any flaws or defects, radiographic testing, often known as RT, uses either x-rays or gamma rays.
• The test component is positioned between the radiation source and the film during radiography testing (or detector). Through interaction mechanisms involving scattering and/or absorption, the test-material part's density and thickness variations will attenuate (i.e., lower) the penetrating radiation.
• The varying levels of absorption are then captured on film or by electronic means. Several imaging modalities, such as Film Radiography, Real Time Radiography (RTR), Computed Tomography (CT), Digital Radiography (DR), and Computed Radiography, are accessible in industrial radiography (CR).
• X-ray and gamma-ray are two separate radioactive sources that can be used in industrial settings. These radiation sources employ electromagnetic waves with a higher energy level and a shorter wavelength. The Local Rules must be scrupulously followed at all times during operation due to the radiation involved in radiography testing.

Thus, industry uses non-destructive testing (NDT) as a testing and analytical method to assess a material's qualities.

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