Oven Heating and Heat Transfer Quiz

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Questions and Answers

What type of radiation is used for sterilization in a convection oven?

  • Neutrons
  • Beta particles
  • Gamma rays (correct)
  • Alpha particles

How are electrons accelerated for the generation of gamma rays?

  • By heating with infrared light
  • By passing through water
  • By passing in a magnetic field (correct)
  • By surface contact with certain metals

What type of radiation has low penetration power and is highly absorbed, requiring only a few seconds or minutes of exposure?

  • Gamma rays
  • Neutrons
  • Beta particles (correct)
  • Alpha particles

Which type of sterilization is suitable for deep articles due to its highly penetrating nature?

<p>Gamma sterilization (B)</p> Signup and view all the answers

What is the recommended radiation dose required for sterilization purposes?

<p>2.5 million rad (A)</p> Signup and view all the answers

How is the amount of radiation accurately measured in the sterilization process?

<p>By means of a dosimeter (D)</p> Signup and view all the answers

What is one of the advantages of UV Light as mentioned in the text?

<p>It is used to sterilize a variety of biological products. (A)</p> Signup and view all the answers

In what areas are UV-Radiation Lamps commonly employed?

<p>Operation theaters and hospital rooms. (A)</p> Signup and view all the answers

What is a major disadvantage of UV Light mentioned in the text?

<p>It does not penetrate deeply and requires direct exposure to microorganisms. (D)</p> Signup and view all the answers

How is UV Light used to sterilize drinking water according to the text?

<p>By exposing it directly to UV-rays. (A)</p> Signup and view all the answers

What makes microbes least affected by UV Radiation according to the text?

<p>Being shielded by textiles, colored glass, and paper. (C)</p> Signup and view all the answers

Why does UV Light pose a serious problem with human eyes according to the text?

<p>Because it damages human eyes on direct exposure. (A)</p> Signup and view all the answers

What is the main purpose of using a fan in the back of the convection oven?

<p>To ensure continuous circulation and heating of air (B)</p> Signup and view all the answers

Why should items in the convection oven not be placed compact or over perforations?

<p>To allow for proper ventilation and air circulation (A)</p> Signup and view all the answers

What is the recommended placement for items that resist heat transfer, like talc powder, in a convection oven?

<p>In shallow layers to facilitate heat transfer (D)</p> Signup and view all the answers

How is an infra red tunnel (I.R.) used in sterilization different from a convection oven?

<p>It utilizes I.R. radiation lamps and a conveyer belt for continuous sterilization (B)</p> Signup and view all the answers

What is the primary advantage of using dry heat sterilization methods like a conductive oven?

<p>Less damage to metals and glass during sterilization (D)</p> Signup and view all the answers

Why are several thermocouples placed at different parts of the oven in sterilization processes?

<p>To validate uniformity of temperature within the oven (D)</p> Signup and view all the answers

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