Hydroponics

15 Questions | Total Attempts: 1623

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Soil Science Quizzes & Trivia

From unit 11, Intro to Plant and Soil Science and Technology, by interstate publishing.


Questions and Answers
  • 1. 
    Hydroponics gets its name from the two Greek words hydro, meaning water, and ponics, meaning labor.
    • A. 

      False

    • B. 

      True

  • 2. 
    Common commercial hydroponics crops include:
    • A. 

      Oak trees, tomatoes, peppers, and cotton.

    • B. 

      Tomatoes, peppers, cotton, and pumpkins.

    • C. 

      Tomatoes, peppers, herbs, and cut flowers.

    • D. 

      Tomatoes, peppers, lettuce, and spruce trees.

    • E. 

      Corn, soybeans, alfalfa, and wheat.

  • 3. 
    Soil can contain dormant weeds and insects.  Hydroponics will not reduce the risk for such pests.
    • A. 

      True

    • B. 

      False

  • 4. 
    Regarding nutrient needs, hydroponics sytems can effectively and rapidly be adjusted by:
    • A. 

      Removing old nutrient solution and replacing water with new solution.

    • B. 

      Adding new nutrients to old solution.

    • C. 

      Adding water to dilute nutrient solution.

    • D. 

      Calling Ghostbusters. They'll fix it.

  • 5. 
    Which of the following are objections to raising plants hydroponically?
    • A. 

      High initial cost.

    • B. 

      Labor intensive.

    • C. 

      Diseases can spread rapidly throughout a system.

    • D. 

      All of the above choices are correct.

    • E. 

      None of the choices are correct.

  • 6. 
    Tomatoes and Peppers don't do too well in our greenhouse.  Which of the following reasons could contribute to their demise?
    • A. 

      The air temperature seems to hover about 60 degrees.

    • B. 

      The nutrient solutions are often inaccurate.

    • C. 

      There are few insects that readily pollinate flying about in the greenhouse.

    • D. 

      The tank runs dry on weekends.

    • E. 

      All of the choices are potential challenges in our systems.

  • 7. 
    Rudolph the red-nosed-reindeer's girlfriend was:
    • A. 

      Clarice!!!!

    • B. 

      Wendy

    • C. 

      Vixon

    • D. 

      Hermie

    • E. 

      Yukon Cornelius

  • 8. 
    Nutrients in hydroponics water are tested in:
    • A. 

      Parts per hundred.

    • B. 

      Parts per thousand.

    • C. 

      Parts per million.

    • D. 

      Parts per trillion.

    • E. 

      Parts per gazillion.

  • 9. 
    The materials used in aggregate culture for plants to take root in are called______________ and they are basically inert.
    • A. 

      Aggregates

    • B. 

      Substrates

    • C. 

      Rockwools

    • D. 

      Inerts

    • E. 

      Nutrient film technique

  • 10. 
    Inert means that aggregate materials such as rockwool or perlite do not provide nutrients to the plant.
    • A. 

      False

    • B. 

      True

  • 11. 
    Light reaching the nutrient solution in hydroponics will likely cause __________ to form.
    • A. 

      Snow crystals

    • B. 

      Penicillin

    • C. 

      Roots

    • D. 

      Algae

    • E. 

      crowds

  • 12. 
    A  water culture system which allows water to spray on the roots, which are suspended in air, is called:
    • A. 

      Nutrient film technique

    • B. 

      Water culture

    • C. 

      Bob

    • D. 

      Aerosmithian culture

    • E. 

      Aeroponics

  • 13. 
    Hydroponics systems are not yet built on a large, multi-acre scale, producing year-round produce in climate challenged areas.
    • A. 

      True

    • B. 

      False

  • 14. 
    Hydroponic tomotoes may look good but they may not taste so fresh, because:
    • A. 

      They are picked too soon.

    • B. 

      They are not picked soon enough.

    • C. 

      The tomatoes are supposed to be green and sour, it makes them healthier for you.

    • D. 

      The tomatoes are really potatoes in disguise, but the packager could not spell.

    • E. 

      High school musical four hasn't even been filmed yet.

  • 15. 
    The ______________   ______   _________________ system is run on a timer.  It fills with water, then slowly drains after the water washes across the roots.  It then fills again and repeats the cycle.