Oven Heating and Heat Transfer Quiz

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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?

Gamma sterilization Signup and view all the answers

What is the recommended radiation dose required for sterilization purposes?

2.5 million rad Signup and view all the answers

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

By means of a dosimeter Signup and view all the answers

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

It is used to sterilize a variety of biological products. Signup and view all the answers

In what areas are UV-Radiation Lamps commonly employed?

Operation theaters and hospital rooms. Signup and view all the answers

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

It does not penetrate deeply and requires direct exposure to microorganisms. Signup and view all the answers

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

By exposing it directly to UV-rays. Signup and view all the answers

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

Being shielded by textiles, colored glass, and paper. Signup and view all the answers

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

Because it damages human eyes on direct exposure. Signup and view all the answers

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

To ensure continuous circulation and heating of air Signup and view all the answers

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

To allow for proper ventilation and air circulation Signup and view all the answers

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

In shallow layers to facilitate heat transfer Signup and view all the answers

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

It utilizes I.R. radiation lamps and a conveyer belt for continuous sterilization Signup and view all the answers

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

Less damage to metals and glass during sterilization Signup and view all the answers

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

To validate uniformity of temperature within the oven Signup and view all the answers