Greenhouse Construction Q&A PDF

Greenhouse construction Q&A Lec 1: A: Choose the correct answer 1. **What is the goal of protected cultivation?** a. Increasing labor cost b. Uncontrolling pests c. Obtain heigh value products d. Increase in the use of chemical fertilizers 2. **............ are grown inside greenhouses...

Greenhouse construction Q&A Lec 1: A: Choose the correct answer 1. **What is the goal of protected cultivation?** a. Increasing labor cost b. Uncontrolling pests c. Obtain heigh value products d. Increase in the use of chemical fertilizers 2. **............ are grown inside greenhouses.** a. Fruits b. Ornamentals c. Seedlings d. All the above 3. **Protected cultivation can treat............** a. Law solar radiation b. Unfavorable water and nutrient levels c. Presence of weeds d. All the above 4. **The most ancient method used to protect crops is............** a. Irrigation b. Windbreaks c. Mulching d. Greenhouses 5. **Irrigation protects from............** a. Water b. Wind c. Drought d. Diseases 6. **Windbreaks protect from............** a. Salty water b. Winds c. Light d. Drought 7. **Black polyethylene mulching happens in............** a. Strawberry b. Carrot c. Cucumber d. Apple 8. **Floating covers are used for..........** a. Protecting crops from water b. Protecting crops from pests and the environment c. Controlling soil nutrients d. Improving soil aeration B: Answer the following questions 1. **What are the factors affecting building greenhouses?** - Soil, water, fuel, climate, marketing. 2. **Mention more than 2 types of protection.** - Mulching, windbreaks, low tunnels, high tunnels, floating covers, greenhouses. 3. **Write two objectives of protected cultivation.** - 1\. Increase productivity 2\. Improve yields Lec 2: A: Choose the correct answer 1. **Which direction is recommended for greenhouse orientation?** a. North-South b. East-West c. South d. North 2. **Which greenhouse structure is known for its semi-circular shape?** a. Gothic arch b. Quonset c. Mansard Roof d. Lean to 3. **Which factor is least important when designing a greenhouse?** a. Sunlight b. Water access c. Wind direction d. Neighboring buildings 4. **............ is a disadvantage of greenhouse.** a. Cost b. Productivity c. a & b d. None of them 5. **Windbreaks can be made of:** a. Glass walls b. Only artificial materials c. Trees d. None of them 6. **Location of greenhouse should be near to.........** a. Markets b. Road c. Water source d. All of them 7. **We build the greenhouse at North-South direction for......** a. Summer crops b. Winter crops c. Spring crops d. Fall crops 8. **Salts should be less than............ppm in water.** a. 300 b. 500 c. 600 d. 1000 9. **If the greenhouse is in north of latitude 30°N or south of latitude 30°S, the optimal orientation is \...\...** a. East-West b. North-South c. South-West d. North-East Lec 3: **1. Which greenhouse type is used to obtain maximum permeability of radiation energy in cloudy areas?** a\) Gable even span b\) Spherical dome ✔️ c\) Lean-to d\) Mansard Roof **2. The paraboloid hyperbolic greenhouse is mainly used in which type of areas?** a\) Hot areas b\) Cold areas✔️ c\) Wet areas d\) Tropical areas **3. What is the shape of a modified Quonset greenhouse?** a\) Dome-shaped b\) Rectangular c\) Semi-cylindrical✔️ d\) Triangular **4. Which greenhouse is known to have curved pipes and allows a large amount of solar radiation?** a\) Gothic Arch b\) Quonset✔️ c\) Ridge and furrow d\) Paraboloid hyperbolic **5. Which type of greenhouse is commonly used in Northern France and Western Europe?** a\) Lean-to b\) Gothic Arch✔️ c\) Ridge and furrow d\) Gable uneven span **6. Mansard roof greenhouses have walls that slope at angles of:** a\) 30-40 degrees b\) 50-60 degrees c\) 60-70 degrees✔️ d\) 80-90 degrees **7. Which greenhouse type is most suitable for uneven areas?** a\) Gable even span b\) Uneven span✔️ c\) Paraboloid hyperbolic d\) Lean-to **8. Which greenhouse type is well-priced and built next to a building?** a\) Lean-to✔️ b\) Gothic Arch c\) Mansard Roof d\) Ridge and furrow **9. What is a common problem with ridge and furrow greenhouses?** a\) Too much sunlight b\) Low heating c\) Prone to wind and snow issues✔️ d\) Difficult ventilation **10. Which greenhouse is the most common and suitable for all types of crops?** a\) Quonset b\) Gothic Arch c\) Gable even span ✔️ d\) Lean-to **11. Greenhouse which is made from wood and can\'t use the upper opening for ventilation** a\) Lean to b\) Gothic arch ✅ c\) Modified Quonset d\) Uneven span **12. In the mansard roof, the slope of the roof is** a\) 60° b\) 70° c\) 30° ✅ d\) 90° **13. Greenhouse in which the roof is steeper than the upper roof** a\) Mansard roof ✅ b\) Lean to c\) Spherical dome d\) Gothic arch **14. One of the commonly used greenhouses in Egypt** a\) Lean to b\) Gothic arch c\) Uneven span d\) Gable even span ✅ **15. Which greenhouse has one side of the roof longer than the other?** a\) Spherical dome b\) Gothic arch c\) Uneven span ✅ d\) Gable even span **16. Greenhouse which is built on the side of a hill** a\) Gothic arch b\) Lean to ✅ c\) Uneven span d\) Gable even span 1. **What is a key advantage of the spherical dome shape for greenhouses?** a. It maximizes radiation energy permeability. b. It is the easiest shape to construct. c. It is the most aesthetically pleasing design. d. It requires the least amount of space. 2. **What does the term \'permeability of radiation energy\' refer to in greenhouse design?** e. The strength of the greenhouse structure. f. The efficiency of water drainage in the greenhouse. g. The ability of a greenhouse to retain heat. h. The capacity of a greenhouse to allow light to pass through. 3. **In which type of areas are paraboloid hyperbolic greenhouses primarily used?** i. Tropical regions with high light intensity. j. Cold areas with low lighting. k. Urban areas with limited space. l. Desert regions with extreme temperatures. 4. **What construction method is associated with Quonset greenhouses?** m. They are made entirely of glass. n. They require professional builders. o. They are designed for permanent installations only. p. They are easy to build and can be constructed by farmers themselves. 5. **What is a notable feature of Quonset greenhouses regarding their covering?** q. They are typically covered with glass. r. They can be covered with polyethylene or fiberglass. s. They are not designed for solar radiation absorption. t. They require a solid roof for insulation. 6. **How do gable roofs contribute to greenhouse design?** u. They are the easiest to ventilate. v. They are the most cost-effective option. w. They allow for equal sides tilted symmetrically. x. They provide maximum insulation. 7. **Which type of greenhouse is common and used in single greenhouses?** y. Paraboloid hyperbolic z. Spherical dome a. Quonset form b. Gothic arch 8. **Modified Quonset shape is used in......** c. Connected houses d. Single houses e. Triangular houses f. None of them 9. **Which type of greenhouses without side breaks between the connected units?** g. Spherical Dome h. Ridge and Furrow i. Lean-to j. All of them 10. **The temperature inside plastic tunnels is usually......** k. 5-7℃ higher than outside l. 10-20℃ higher than outside m. 5-7℃ lower than outside n. 10-15℃ lower than outside Lec 4: A: Choose the correct answer 1. **What is one disadvantage of connected greenhouses in terms of heating requirements?** a. They require less heating overall b. They have a higher surface area to floor area ratio c. They are easier to heat than separate greenhouses d. They are built with more energy-efficient materials 2. **What is one advantage of separate greenhouses?** e. Lower heating costs f. Easier to expand or contract production g. Reduced need for central administration h. Decreased environmental requirements 3. **What is one advantage of using ovals in greenhouse layout?** i. They are easier to construct than rectangles j. They are more aesthetically pleasing k. They reduce dimensional problems found in rectangular spaces l. They provide more space for crops 4. **The preferred location for windbreaks around greenhouses is:** m. East and north n. West and east o. South and north p. North and west 5. **What should be considered when organizing retail space in a greenhouse?** q. Keep customers away from production areas r. Display all crops prominently s. Maximize production area visibility t. Create a relaxing atmosphere for customers 6. **What is the recommended distance for windbreaks from the nearest building?** u. 150 feet v. 100 feet w. 200 feet x. 50 feet 7. **What are the two basic systems for greenhouse layout?** y. Separate and connected greenhouses z. Vertical and horizontal greenhouses a. Open and closed greenhouses b. Indoor and outdoor greenhouses 8. **Where are greenhouse foundations typically built?** c. On a concrete slab d. In a separate structure e. Inside the soil at an appropriate depth f. Above ground level 9. **Which equation is used to calculate the diameter of the base column of a greenhouse?** a. Y = 20 + 1.1097(X) b. Y = 23 + 1.1097(X) c. Y = 22 + 1.1097(X) d. Y = 25 + 1.1097(X) 10. **Which material is commonly used for greenhouse foundations?** g. Glass h. Aluminum i. Cement j. PVC 11. **Why is porous concrete often used in greenhouse flooring?** k. It is lightweight and easy to transport. l. It allows water to pass through m. It provides smooth walkways n. It increases weed growth 12. **What is the benefit of soilless growing systems in greenhouse production?** o. They are less expensive to implement. p. They are not suitable for all types of plants. q. They can lead to faster plant growth. r. They require more water than traditional systems. 13. **Which of the following statements about brick molds is** **accurate?** s. They are the cheapest option available. t. They are used for constructing low-height foundation walls. u. They provide poor heat insulation. v. They are used for high-rise buildings. 14. **Which type of wood is known for its resistance to deficiency and corrosion in foundation construction?** w. Pine wood x. Red or Sinbad wood y. Oak wood z. Birch wood 15. **What should be done to all types of wood used in foundations to prevent corrosion?** a. They should be painted with asphalt. b. They should be painted with oil-based paint. c. They should be treated with water. d. They should be left untreated. 16. **What is hydroponics?** e. Growing plants in soil f. Growing plants without soil g. A method to reduce sunlight h. A process for pest control 17. **Which material is known for its high light transmittance and resistance to breakage?** i. Glass j. Wood k. Cement l. Steel 18. **What property makes fiberglass popular for greenhouse covers?** m. High weight n. Excellent heat retention o. Low cost p. Short lifespan 19. **Advantage of hydroponic systems:** q. lack of diseases and insects r. Increase the value of the underlying investment s. high energy cost t. The need for more technical skills 20. **What is the disadvantage of hydroponic systems?** u. Low energy cost v. Get lower productivity w. High water usage x. Increased technical skill requirement B: Put (✓) or (✗) +-----------------------+-----------------------+-----------------------+ | 7. | Separate greenhouses | ✗ | | | are harder to expand | | | | compared to connected | | | | greenhouses | | +=======================+=======================+=======================+ | 1. | foundations for | ✗ | | | greenhouses are | | | | typically built above | | | | ground level | | +-----------------------+-----------------------+-----------------------+ | 2. | The sand culture | ✓ | | | technique in | | | | greenhouses does not | | | | use soil | | +-----------------------+-----------------------+-----------------------+ | 3. | Polyethylene is | ✓ | | | commonly used as a | | | | greenhouse cover due | | | | to its affordability | | | | and durability | | +-----------------------+-----------------------+-----------------------+ | 4. | Greenhouse structures | ✓ | | | are primarily made of | | | | lightweight materials | | | | like wood and | | | | aluminum | | +-----------------------+-----------------------+-----------------------+ | 5. | Hydroponic systems | ✓ | | | are known for reduced | | | | water consumption and | | | | higher productivity | | +-----------------------+-----------------------+-----------------------+ | 6. | The distance for | ✗ | | | windbreaks from the | | | | nearest building is | | | | 50 ft | | +-----------------------+-----------------------+-----------------------+