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B.Tech Biotech Food Technology — practice questions

Explore 30 free Food Technology questions in B.Tech Biotech Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Food Technology questions and exercises with answers

Showing questions 1–30 of 30.

Doorknobs, toys and towels can carry microbes from person to person. Such objects are called:Read the answer and worked solution →A lab wipes a bench with bleach, killing most but not all microbes. This process is:Read the answer and worked solution →A bench has been wiped with bleach. That bench is now clean but not:Read the answer and worked solution →A cook kills most kitchen microbes with a natural acid. That household disinfectant is:Read the answer and worked solution →Ordinary disinfection fails to sterilise because some microbes form tough:Read the answer and worked solution →A nurse needs a chemical safe to use on living skin. She needs an:Read the answer and worked solution →Two common antiseptics are isopropyl alcohol and hydrogen:Read the answer and worked solution →A worker scrubs her hands gently with mild soap. That reduction of microbes is:Read the answer and worked solution →Cleaning fomites to a level judged safe for public health is called:Read the answer and worked solution →An agent is labelled a bactericide. That tells you it kills:Read the answer and worked solution →A treatment is called bacteriostatic. That means it stops bacteria from:Read the answer and worked solution →A hospital raises the temperature and the strength of its disinfectant. Microbes then die:Read the answer and worked solution →A lab sterilises glassware with pressurised steam. The device is an:Read the answer and worked solution →Among all the methods available, the one still counted most effective for sterilising is the:Read the answer and worked solution →A standard autoclave run holds the load at about:Read the answer and worked solution →Large industrial autoclaves used by food canners are called:Read the answer and worked solution →A technician checks a strip whose white lines turn black after a run. That is autoclave:Read the answer and worked solution →Autoclave tape turns black but cannot prove sterility because it ignores the:Read the answer and worked solution →Milk is heated enough to kill pathogens but is not made sterile. That process is:Read the answer and worked solution →Milk held at 72 degrees for 15 seconds has undergone which pasteurisation?Read the answer and worked solution →Raisins, prunes and jerky keep for months because they have been:Read the answer and worked solution →A culture is snap frozen and put under vacuum so ice turns straight to vapour. That is:Read the answer and worked solution →Catch the control methodsRead the answer and worked solution →Pop the skin safe agentsRead the answer and worked solution →Run the hygiene gatesRead the answer and worked solution →Slice the control wordsRead the answer and worked solution →Kills all or kills mostRead the answer and worked solution →Sort the hygiene ideasRead the answer and worked solution →Type the numberRead the answer and worked solution →Microbe control bingoRead the answer and worked solution →

Worked practice questions

Doorknobs, toys and towels can carry microbes from person to person. Such objects are called:

  1. Fomites
  2. Fossils
  3. Faucets
  4. Filters
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Correct answer: A. Fomites

1. They are lifeless objects, not people. 2. They still help pass infection along. 3. Such objects are fomites. _Source: OpenStax Microbiology, Chapter 13, Control of Microbial Growth._

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A lab wipes a bench with bleach, killing most but not all microbes. This process is:

  1. Distribution
  2. Disinfection
  3. Distillation
  4. Dissolution
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Correct answer: B. Disinfection

1. Chemicals inactivate microbes on a surface. 2. A few survivors remain behind. 3. That process is disinfection. _Source: OpenStax Microbiology, Chapter 13, Control of Microbial Growth._

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A bench has been wiped with bleach. That bench is now clean but not:

  1. Sterile
  2. Stable
  3. Shining
  4. Slanted
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Correct answer: A. Sterile

1. Some microbes always survive a wipe. 2. Sterile means none at all remain. 3. So the bench is not sterile. _Source: OpenStax Microbiology, Chapter 13, Control of Microbial Growth._

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More Biology topics

BiologyControl of Microbial Growth