Farm & Agricultural Engineering Ebook for NABARD Grade A, Download PDF

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The upcoming NABARD exam for Grade A Officer (Assistant Manager) has a section on Agriculture and Rural Development, which focuses on rural Indian agriculture. It is imperative that candidates have an in-depth knowledge of the various practices and technologies used in agriculture. Furthermore, they should have a fair idea of the impact of engineering on agriculture. To make sure that you do not miss out on any important information, we are providing you with notes on the Farm & Agricultural Engineering Ebook for NABARD Grade A, which will help you score good marks.

Impact of Engineering on Agriculture

Formerly, agriculture in India depended on primitive methods of cultivation and irrigation. However, with modern agricultural engineering, processing and production of crops have become easier. Agricultural Engineering involves the disciplines of civil, mechanical, chemical, and electrical engineering principles with adequate knowledge of agricultural principles based on technological principles. Agricultural engineering has yielded positive results in terms of improved efficacy and sustainability of agricultural practices.

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Modern Engineering Techniques – Energy, Power

The modern farm and agri-engineering techniques used include the following –

» Mechanical Power

Broadly speaking, mechanical power includes tractors, stationary oil engines, and power tillers. The internal combustion engine can convert liquid fuel into mechanical work. These engines can be classified into –

Spark Ignition Engines (kerosene or petrol)
Compression-ignition engines (diesel engines)

In today’s age, most of the power tillers and tractors run on diesel engines. Further, these engines are used for operating oil ghanis, flourmills, irrigation pumps, sugarcane crusher, winnowers, threshers, and chaff cutter.

Merits –

Highly efficient
Cost-effective
Unaffected by adverse weather conditions

» Electrical Power

Electrical power is usually used on farms in the form of electrical motors. Indian farmers rely heavily on motors due to their ability to function smoothly. Its maintenance requires little attention and the operating costs remain constant more or less throughout life. This type of power is used mostly for the dairy and fruit industry, water pumping, cold storage, and processing of farm products.

Merits –

A cheap form of power
Low maintenance and operating cost
Can work continuously
High efficiency

» Renewable Energy

This refers to a renewable source of energy like wind, sun, and biomass. Wind energy, solar energy, and biogas energy along with suitable devices are used for domestic and agricultural purposes. This type of energy can be used for cooking, heating water, lighting, water distillation, water pumping, electric generation, and food processing. Renewable energy is inexhaustible in nature.

Wind Energy – Electricity generation, water pumping
Solar Energy – Solar lighting, solar refrigeration, solar dryers, cookers, lanterns, solar still
Tidal Energy – Electricity generation
Biomass Energy – Pyrolysis, gasifiers, biogas
Geothermal Energy – Electricity and heat production

Merits –

No danger of depletion
Inexhaustible, reproducible in nature
Power plants running on renewable energy have no fuel cost and hence, have a negligible operating cost
More site-specific (used for local processing)
No need for the distribution and transmission of power
Low energy density
Do not pose a threat to ecology or environment
Most of the power plants and devices made out of renewable energy and prepared by local, skilled labor are simple in construction and design. Thus, it helps generate local employment and save foreign exchange
The remote villages in rural India can be served better with renewable sources of energy available locally. This will boost savings from transmitting electricity from far-off distances or transporting fuels.

» Biomass

Biomass contains energy stored from the sun. Plants absorb solar energy through photosynthesis. When you burn biomass, it releases chemical energy in the form of heat. Biomass can be directly burned or converted into biogas or liquid biofuels, which again can be burned as fuels. Biomass is of four types –

Agricultural and wood products
Solid Wastes
Landfill gas
Alcohol fuels

Merits –

Biomass used as a fuel reduces the need for fossil fuels for the production of steam, heat, and electricity for industrial, agricultural, and residential use
Always available, renewable source of energy
Biomass fuel obtained from agricultural wastes can be used as a secondary product that adds value to the crops
Biomass crops use up CO2 and produce O2
Less money spent on foreign oil

Farm & Agricultural Engineering Ebook for NABARD Grade A

We have compiled Farm & Agricultural Engineering Ebook for NABARD Grade A, you can download the ebook from the direct link given below:

Download Farm & Agriculture Engineering for NABARD Grade A

Also, check out the below-given links

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How to Prepare for the NABARD Grade A Exam?

If you are a candidate who has never prepared for the NABARD Grade A Exam before and is scared of the Agriculture section that is asked in the exam, then you must check out the following success stories:

Success Story of Anantha Giri Padmanabhan
Success Story of Himanshu Baliyan

Special Note: Any Graduate candidate from any discipline can apply for this exam. With a systematic way of preparation, aspirants can smoothly get good marks in the Agriculture section.

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Saloni Singhal

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