Podcast
Questions and Answers
What is the main purpose of misting or fogging systems in poly tunnels or greenhouses?
What is the main purpose of misting or fogging systems in poly tunnels or greenhouses?
What is a distinguishing feature of pop-up sprinkler systems compared to conventional sprinkler systems?
What is a distinguishing feature of pop-up sprinkler systems compared to conventional sprinkler systems?
What is a benefit of drip irrigation related to weed growth?
What is a benefit of drip irrigation related to weed growth?
What is a limitation of drip irrigation related to initial cost?
What is a limitation of drip irrigation related to initial cost?
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What distinguishes on-line drip irrigation from in-line drip irrigation?
What distinguishes on-line drip irrigation from in-line drip irrigation?
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What is the main advantage of surface drip micro irrigation system?
What is the main advantage of surface drip micro irrigation system?
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Which micro irrigation system applies water in a small stream from an opening with a point source?
Which micro irrigation system applies water in a small stream from an opening with a point source?
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In which micro irrigation system are water supply outlets pointed upwards below the soil surface?
In which micro irrigation system are water supply outlets pointed upwards below the soil surface?
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Which micro irrigation system allows water to be spread in the air and fall on the ground as rainfall?
Which micro irrigation system allows water to be spread in the air and fall on the ground as rainfall?
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Which micro irrigation system does not have moving parts and applies water as a spray through air around the crop?
Which micro irrigation system does not have moving parts and applies water as a spray through air around the crop?
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In an internal combustion engine, where does the combustion of fuel take place?
In an internal combustion engine, where does the combustion of fuel take place?
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What is the purpose of the diesel injector in a 4-stroke diesel engine?
What is the purpose of the diesel injector in a 4-stroke diesel engine?
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What is the function of the wind power in a farm machinery system?
What is the function of the wind power in a farm machinery system?
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What is the main source of power needed for activating a solar-powered farm machinery system?
What is the main source of power needed for activating a solar-powered farm machinery system?
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In a 2-stroke engine, how many strokes of the piston are required to complete one full engine cycle?
In a 2-stroke engine, how many strokes of the piston are required to complete one full engine cycle?
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What is the main difference between a 4-stroke diesel engine and a 4-stroke petrol engine?
What is the main difference between a 4-stroke diesel engine and a 4-stroke petrol engine?
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During which stroke of the 4-stroke engine does the highest pressure occur?
During which stroke of the 4-stroke engine does the highest pressure occur?
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In a 2-stroke petrol engine, what is the purpose of the transfer port?
In a 2-stroke petrol engine, what is the purpose of the transfer port?
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What is the function of the exhaust valve in a 4-stroke engine?
What is the function of the exhaust valve in a 4-stroke engine?
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Which component in both diesel and petrol engines is responsible for converting reciprocating motion into rotary motion?
Which component in both diesel and petrol engines is responsible for converting reciprocating motion into rotary motion?
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Study Notes
Irrigation Systems
- Misting or fogging systems in poly tunnels or greenhouses maintain a consistent humidity level, reducing heat stress and promoting healthy plant growth.
- Pop-up sprinkler systems are distinguished by their ability to retract below the soil surface when not in use, reducing obstruction and damage.
Drip Irrigation
- Drip irrigation reduces weed growth by delivering water directly to the roots of plants, making it unavailable to weeds.
- A limitation of drip irrigation is its high initial cost, which can be a significant investment for farmers.
- On-line drip irrigation systems have emitters spaced at regular intervals along the lateral, whereas in-line systems have emitters built into the lateral.
Micro Irrigation Systems
- Surface drip micro irrigation systems provide a high degree of water control and flexibility, allowing for efficient irrigation.
- Micro sprinkler irrigation applies water in a small stream from an opening with a point source.
- Sub-surface drip irrigation systems have water supply outlets pointed upwards below the soil surface.
- Sprinkler irrigation allows water to be spread in the air and fall on the ground as rainfall.
- Micro spray irrigation does not have moving parts and applies water as a spray through air around the crop.
Internal Combustion Engines
- Combustion of fuel takes place in the cylinder head of an internal combustion engine.
- The diesel injector in a 4-stroke diesel engine atomizes fuel at high pressure, creating a fine spray.
- Wind power is used to power farm machinery systems, particularly in irrigation pumps.
- Solar-powered farm machinery systems rely on photovoltaic cells to generate electricity from sunlight.
Engine Cycles
- A 2-stroke engine requires two strokes of the piston to complete one full engine cycle.
- The main difference between a 4-stroke diesel engine and a 4-stroke petrol engine is the fuel ignition method.
- The highest pressure occurs during the compression stroke of the 4-stroke engine.
- In a 2-stroke petrol engine, the transfer port allows the fuel-air mixture to enter the cylinder while expelling exhaust gases.
Engine Components
- The exhaust valve in a 4-stroke engine regulates the flow of exhaust gases out of the cylinder.
- The crankshaft is responsible for converting reciprocating motion into rotary motion in both diesel and petrol engines.
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Description
Test your knowledge about micro irrigation systems and their types with this quiz. Learn about the advantages and methods of installation for surface drip and subsurface systems.
