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CTET Food — practice questions — page 2

Explore 87 free Food questions in CTET Environmental Studies. Open each question or exercise to read its content, reference answers and available explanation.

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Food questions and exercises with answers

Showing questions 31–60 of 87.

True or false on keeping foodRead the answer and worked solution →Why are milk and drinking water often boiled?Read the answer and worked solution →Who invented the canning of food?Read the answer and worked solution →In canning, after food is sealed in jars, what is done to the jars?Read the answer and worked solution →How does keeping food cool help it last longer?Read the answer and worked solution →In curing, what does added salt do to the food?Read the answer and worked solution →Which is a traditional way of removing water from food?Read the answer and worked solution →Which food is made by fermentation?Read the answer and worked solution →Pickling keeps food in what kind of liquid?Read the answer and worked solution →Which liquid is commonly used to pickle foods?Read the answer and worked solution →Fermentation pickling mainly produces which acid?Read the answer and worked solution →How does sugar help keep jam from spoiling?Read the answer and worked solution →Early cultures stored fruit in which sweet substance?Read the answer and worked solution →Today, pasteurization is mainly used on which foods?Read the answer and worked solution →At about what temperature is milk pasteurized?Read the answer and worked solution →Pasteurization was first used to stop what from souring?Read the answer and worked solution →Vacuum packing keeps food fresh by removing what?Read the answer and worked solution →Which food is often vacuum-packed to save its flavour?Read the answer and worked solution →In rural Afghanistan, grapes are kept for months in vessels made of what?Read the answer and worked solution →Century eggs are made by placing eggs in what kind of mud?Read the answer and worked solution →Which preservative type stops the growth of bacteria or mould?Read the answer and worked solution →Which change in cut apples can food preservation prevent?Read the answer and worked solution →How can many root vegetables be kept without other treatment?Read the answer and worked solution →Which of these is used to make a food gel in jellying?Read the answer and worked solution →Which of these is a macronutrient?Read the answer and worked solution →Vitamins and minerals belong to which group of nutrients?Read the answer and worked solution →Which item is needed in large amounts but gives no calories?Read the answer and worked solution →Carbohydrates are compounds made up of units of what?Read the answer and worked solution →Proteins are built from which small units?Read the answer and worked solution →How many fatty acids are known to be essential for humans?Read the answer and worked solution →

Worked practice questions

True or false on keeping food

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    Pickles last until the next mango season.
  2. Statement is true
    No
    Statement
    Mamidi tandra is made in a single day.
  3. Statement is true
    No
    Statement
    Onions should be kept in a damp place.
  4. Statement is true
    Yes
    Statement
    Damp bread in a closed box grows fungus.
  5. Statement is true
    No
    Statement
    All foods spoil for the very same reason.
  6. Statement is true
    Yes
    Statement
    Hands should be washed after the experiment.
Instructions
Decide whether each statement is true or false.
_Source: syllabus Environmental Studies, 'Looking Around', Ch 4 'Mangoes Round the Year'_

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Why are milk and drinking water often boiled?

  1. To add more minerals
  2. To change their colour
  3. To make them heavier
  4. To kill harmful microbes
Show answer and solution

Correct answer: D. To kill harmful microbes

1. Boiling heats a liquid enough to kill microbes. 2. Milk and water may carry harmful microbes, so they are boiled before use. 3. Boiling does not add minerals, weight or colour. _Source: Wikipedia, Food preservation, Boiling_

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Who invented the canning of food?

  1. Louis Pasteur
  2. Robert Koch
  3. Nicolas Appert
  4. Joseph Lister
Show answer and solution

Correct answer: C. Nicolas Appert

1. Canning means sealing cooked food in sterilised cans or jars. 2. It was invented by the French confectioner Nicolas Appert. 3. Pasteur is linked to pasteurization, Koch and Lister to germ study and surgery. _Source: Wikipedia, Food preservation, Canning_

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