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Subel. Y9
9 questions
Subelement Y9

YAM PROCESSING

Section Y9B

Value-added yam products

Which of the following is a common industrial application for yam starch?

  • Automobile fuel only
  • Construction concrete only
  • Aircraft manufacturing only
  • Correct Answer
    Food thickener and pharmaceutical excipient
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What is "elubo" in Nigerian food products?

  • Fermented yam beverage
  • Correct Answer
    Dried yam flour
  • Fresh yam leaves
  • Yam seed oil
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What processing approach is used to create precooked frozen yam products?

  • Correct Answer
    Peeling, cutting, blanching, cooking, and blast freezing
  • Dehydrating and then rehydrating with artificial flavors
  • Grinding into powder and reforming into shapes
  • Treatment with preservatives only
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What value-added approach has increased the market for purple yam (ube)?

  • Using it as industrial paint
  • Marketing it as a building material
  • Correct Answer
    Processing into powder and paste for use in desserts and beverages
  • Promoting it as a writing instrument
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What challenge must be overcome in producing shelf-stable yam snack products?

  • Yams' tendency to become luminescent
  • Correct Answer
    Controlling moisture content and preventing rancidity
  • Yams' natural radioactivity
  • Yams' tendency to turn into other vegetables
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Which process is used to create yam noodles in Asian food products?

  • Synthetic extrusion from petroleum
  • 3D printing only
  • Hand carving individual noodles
  • Correct Answer
    Mixing yam flour with starches and extruding
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What feature makes certain processed yam products successful in health food markets?

  • Correct Answer
    Low glycemic index and high fiber content
  • Ability to grant invisibility
  • Guaranteed weight gain properties
  • High fat and sugar content
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What technology has enabled the development of yam-based convenience foods?

  • Anti-gravity chambers
  • Time travel
  • Correct Answer
    Improved processing, packaging, and preservation methods
  • Telepathic cooking instructions
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Which quality parameter is most important in processed yam chips or crisps?

  • Ability to bounce when dropped
  • Correct Answer
    Crispness, color, and oil content
  • Weight-to-volume ratio
  • Magnetic properties
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