Agricultural Machinery Quiz

Agricultural Engineering and Related Concepts

• 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.

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.