Non-Destructive Testing Methods Quiz
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Questions and Answers

What is the purpose of using radiography in cast iron articles and mon solder?

  • To detect flaws in metal work (correct)
  • To measure the thickness and density of the material
  • To examine the material inside a packing
  • To maintain the required thickness and level of aluminum

How is radioluminescence utilized in certain objects like the hands of a clock?

  • By measuring radiation variations with an instrument
  • By examining the material inside a packing
  • By using radioactive substances like radium and phosphor to make them visible in the dark (correct)
  • By modifying genes and chromosomes using radiation

Which radioactive substance is specifically mentioned for use in High Intensity Discharge (HID) lamps?

  • Radon-86
  • Krypton-85 (correct)
  • Uranium oxide
  • Promethium-147

In what field can genes and chromosomes be modified by means of radiation?

<p>Agriculture (D)</p> Signup and view all the answers

What is the function of promethium-147 in portable X-ray units?

<p>As the source of beta radiation (B)</p> Signup and view all the answers

How is radiography different from radioluminescence in terms of their applications?

<p>Radiography is used to detect flaws in metal work while radioluminescence makes objects visible in the dark (C)</p> Signup and view all the answers

What is the purpose of using cobalt-60 in food preservation?

<p>To prevent sprouting of the food (D)</p> Signup and view all the answers

What is the role of iodine-123 in medical science?

<p>Diagnosis of hyperthyroidism (C)</p> Signup and view all the answers

Which radioactive isotopes are commonly used in the treatment of bone cancer?

<p>Samarium-153 and strontium-90 (A)</p> Signup and view all the answers

What are the common symptoms of hyperthyroidism?

<p>Enlargement of the thyroid gland and weight loss (B)</p> Signup and view all the answers

How is technetium-89 typically utilized in medical science?

<p>Detection of small tumors (C)</p> Signup and view all the answers

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