Agricultural Machinery Quiz
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Questions and Answers

Which commodity in the provided table is characterized by a monopoly?

  • Pili Nut
  • Hazel Nut
  • Cashew Nut (correct)
  • Peanut
  • Identify the commodity that reflects an oligopoly in the given scenario.

  • Pili Nut (correct)
  • Peanut
  • Cashew Nut
  • Hazel Nut
  • Which of the following commodities illustrates pure competition?

  • Cashew Nut
  • Pili Nut
  • Peanut (correct)
  • Hazel Nut
  • What would be the commission earned from selling 10 tractors at 1.5 million each, with a commission rate of 15%?

    <p>$300,000</p> Signup and view all the answers

    How many sellers are involved in the peanut market from the table?

    <p>25</p> Signup and view all the answers

    What is the selling price per kilogram for Hazel Nuts in the market?

    <p>$200</p> Signup and view all the answers

    Which commodity has the highest number of buyers based on the information provided?

    <p>Pili Nut</p> Signup and view all the answers

    In the context of agricultural marketing, which type of competition involves many marketers competing to sell similar products?

    <p>Monopolistic Competition</p> Signup and view all the answers

    What is the bulk density range of rice husk?

    <p>50-80 kg/m3</p> Signup and view all the answers

    What is the term for the bend downward of the point of the share to ensure proper plow penetration?

    <p>Tilt angle</p> Signup and view all the answers

    Which type of planter is designed to place seedlings in rows and hills?

    <p>Hill-drop planter</p> Signup and view all the answers

    What is the theoretical field capacity of a field when 4 ha was plowed with a three-bottom 12-inch tractor-mounted moldboard plow in 11 hours at a speed of 5 kph?

    <p>1.45 ha/hr</p> Signup and view all the answers

    The mechanical manipulation of soil for any purpose is referred to as what?

    <p>Tillage</p> Signup and view all the answers

    What factors influence the draft of a plow?

    <p>All of the above</p> Signup and view all the answers

    The groundwheel of a planter is typically related to the operation of which component?

    <p>Metering device</p> Signup and view all the answers

    Which of the following is equivalent to twelve man-days?

    <p>Three men working for three days</p> Signup and view all the answers

    What is most likely the cause if an engine emits black smoke?

    <p>Excess fuel in the combustion chamber</p> Signup and view all the answers

    Which of the following best describes the term 'Warranty'?

    <p>A commitment to repair or replace defective products</p> Signup and view all the answers

    What type of canal cross-section is best for achieving maximum flow of water at any depth?

    <p>Trapezoidal</p> Signup and view all the answers

    What is the Reynolds number indicative of laminar flow?

    <p>Less than 2000</p> Signup and view all the answers

    Which precipitation type results from mechanical lifting of air masses over mountains?

    <p>Orographic Precipitation</p> Signup and view all the answers

    What type of erosion involves the detachment and transportation of thin layers of soil by flowing water?

    <p>Sheet Erosion</p> Signup and view all the answers

    What is critical flow characterized by in terms of the Froude number?

    <p>Fr = 1</p> Signup and view all the answers

    What soil property describes the ability of soil to transmit water?

    <p>Permeability</p> Signup and view all the answers

    What is the moisture content by dry weight for the soil sample with fresh mass 910.6 grams and dry mass 736.3 grams?

    <p>23.6%</p> Signup and view all the answers

    Which type of terrace is specifically used for slopes ranging from 9-24%?

    <p>Bench</p> Signup and view all the answers

    What is the expected runoff in cubic meters from a watershed of 100 ha during a rainfall of 6 mm, with a C value of 0.60?

    <p>7200 m³</p> Signup and view all the answers

    Which type of flow remains constant at every section of a prismatic channel?

    <p>Uniform flow</p> Signup and view all the answers

    What is the term for meat obtained from goats?

    <p>Chevon</p> Signup and view all the answers

    What discharge size is needed for a pump that needs to maintain a flow of 300 L/s at 4 meters head with overall efficiencies of 60% and 75%?

    <p>2.0 kW</p> Signup and view all the answers

    Which of the following has the highest bearing capacity?

    <p>Rock</p> Signup and view all the answers

    What is the design discharge of a canal that needs to deliver a 5-day requirement of 7 mm/day with an irrigation efficiency of 75%?

    <p>33.6 m³</p> Signup and view all the answers

    What is the primary factor affecting the power rating of a primemover for a pump when given their efficiencies?

    <p>Combined efficiency of both</p> Signup and view all the answers

    Which geological formation has insufficient capacity to be economically developed for pumping?

    <p>Aquiclude</p> Signup and view all the answers

    In a rectangular field with dimensions 180m x 240m, what parameter is primarily influenced by the sprinkler spacing of 6m x 6m?

    <p>Coverage area of sprinklers</p> Signup and view all the answers

    What type of heat transfer involves a change in temperature without a change in state?

    <p>Sensible Heat</p> Signup and view all the answers

    In a wind turbine exceeding 100 kW capacity, which component is crucial for converting rotational energy into electricity?

    <p>Alternator</p> Signup and view all the answers

    Which tail type of multi-bladed windpump is deemed most efficient in areas with high wind speeds?

    <p>Hinged side vane</p> Signup and view all the answers

    What is the maximum weight rating for Environmental, Safety, and Health criteria during construction?

    <p>0.15</p> Signup and view all the answers

    How long did it take to load a 2.4-tonne capacity Jatropha oil expeller full with dried Jatropha seeds?

    <p>4 minutes</p> Signup and view all the answers

    Study Notes

    • Bulk density of rice husk ranges between 50-80 kg/m³.
    • The downward bend of the share point in a plow is referred to as the tilt angle.
    • A hill-drop planter is designed specifically to place seedlings in both rows and hills.
    • A reaper-windrower is a machine that cuts standing crops and arranges them neatly for collection.
    • The theoretical field capacity for a 4-ha field plowed with a three-bottom 12-inch tractor-mounted moldboard plow over 11 hours at a speed of 5 kph is calculated to be 1.13 ha/hr.
    • Tillage involves the mechanical manipulation of soil for various agricultural purposes.
    • The draft of a plow depends on the size of the plow, plowing depth, and type of soil.
    • The ground wheel of a planter is crucially connected to its metering device for properly dispensing seeds.
    • For a two-row corn planter, the expected hill spacing can be derived from the given specifications, with options including 0.62 m and 0.81 m.
    • Twelve man-days are equivalent to three men working for three days.

    Agricultural Engineering Regulations

    • The Institutionalization of Agricultural Engineering Profession in Local Government Units is outlined in Memorandum Circular No. 2008 167.
    • AMMDA stands for Agricultural Machinery Manufacturer’s and Distributors Association.

    Commodity Market Structures

    • Monopolized commodities usually have one seller controlling the supply, while oligopolized markets have a small number of sellers.
    • Pure competition is characterized by many sellers providing indistinguishable products, as seen with peanuts and cashew nuts.

    Water Resources Management

    • The maximum flow of water at any depth is best achieved with a trapezoidal canal cross-section.
    • Laminar flow is defined as having a Reynolds number of less than 1.
    • The highest approximate residence time for water is found in deep groundwater.

    Soil and Erosion

    • Splash erosion occurs with thin films of soil detached and transported by flowing water.
    • The critical flow condition is met when Fr = 1.
    • Soil properties that indicate water transmission ability or moisture content are crucial for understanding irrigation practices.

    Agricultural Engines and Machinery

    • Black smoke from an engine often indicates poor combustion or a fuel problem, while starting issues can be due to battery failure or fuel supply.
    • Familiarity with post-harvest machinery operations, such as calculating milling recovery and hulling coefficients, is essential.
    • Understanding the terms related to warranty, after sales, performance test, and machine specifications is vital in agricultural equipment management.

    Agricultural Hydraulic Systems

    • Compute design discharge requirements and efficiencies in irrigation canals while considering evapotranspiration and percolation losses.
    • The power rating of pumps must be calculated based on discharge rates and the efficiencies of pump systems.

    Power and Energy in Agriculture

    • Understanding energy transfer in agricultural systems, such as how rotational movement is converted to electricity in aerogenerators, is integral for sustainable practices.

    Miscellaneous Agricultural Practices

    • Awareness of definitions like effluent streams, influent streams, and perennial streams is needed for efficient water management in agriculture.
    • The value of different crops, their market control, and pricing strategies are critical for maximizing profits in agriculture.

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    Description

    Test your knowledge on agricultural machinery and techniques with this quiz. Questions cover topics such as bulk density of rice husk, plow design, and planting methods. Perfect for students and professionals in the agriculture field.

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