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Past Questions
The central AGMARK lab is located at-
A)
Kolkata
B)
Mumbai
C)
Nagpur
D)
New Delhi
AGMARK is a certification mark employed on agricultural products in India, assuring that they conform to a set of standards approved by the Directorate of Marketing and Inspection (DMI). The Central AGMARK Laboratory, which serves as the apex body for the testing and standardization of agricultural commodities to ensure quality and purity, is located in Nagpur, Maharashtra.
- Kolkata, Mumbai, and New Delhi may have regional offices or specific testing facilities, but the designated Central AGMARK Laboratory is situated in Nagpur.
- The Directorate of Marketing and Inspection (DMI) oversees the AGMARK system under the Ministry of Agriculture and Farmers Welfare.
The short-range weather forecasting, period of validity is-
A)
Upto 2 days
B)
Upto 4 days
C)
Upto 5 days
D)
Upto 6 days
In meteorology, weather forecasting is categorized based on the lead time (the period of validity).
1. **Short-range forecasting**: This typically covers a period from a few hours up to 72 hours (3 days). However, in many technical and standardized exam contexts for agricultural meteorology, 'short-range' is specifically defined as forecasts valid for up to 2 or 3 days. Among the given options, 'Upto 2 days' is the most accurate fit for the short-range category.
2. **Medium-range forecasting**: This generally covers the period from 3 to 10 days.
3. **Long-range forecasting**: This covers periods beyond 10 days, extending to weeks, months, or seasons.
Comparing the options:
- Option (a) 'Upto 2 days' falls squarely within the short-range definition.
- Options (b), (c), and (d) extend into the medium-range category (which typically starts after day 3). Therefore, option (a) is the correct choice.
Zero energy cool chamber developed at-
A)
IHR
B)
ICAR
C)
IARI
D)
ICRISAT
The Zero Energy Cool Chamber (ZECC) was developed by the Indian Institute of Horticultural Research (IIHR), which is often abbreviated as IHR in various examination contexts. The ZECC is an evaporative cooling structure made of double-walled bricks with a layer of sand in between, which is kept moist. It is designed to store fruits and vegetables at low temperatures without the use of electricity, making it ideal for small-scale farmers in rural areas.
- Option (a) IHR (IIHR) is the correct developer of this technology.
- Option (b) ICAR (Indian Council of Agricultural Research) is the apex body for coordinating agricultural research in India, but the specific technology was developed at the institute level (IIHR).
- Option (c) IARI (Indian Agricultural Research Institute) focuses more on general agricultural research and education.
- Option (d) ICRISAT (International Crops Research Institute for the Semi-Arid Tropics) focuses on dryland crops like sorghum and millet, not specifically on post-harvest cooling structures like ZECC.
What is the correct order of 3R principle for waste management?
A)
Recycle, Reuse, Reduce
B)
Reduce, Reuse, Recycle
C)
Recycle, Reduce, Reuse
D)
Reduce, Remove, Recycle
The 3R principle is a waste management hierarchy designed to minimize the amount of waste sent to landfills. The order is based on the level of environmental impact and efficiency:
1. **Reduce**: This is the most effective step. It involves decreasing the amount of waste produced in the first place (e.g., buying products with less packaging).
2. **Reuse**: If waste cannot be avoided, the next best step is to use the item again for the same or a different purpose instead of throwing it away (e.g., using a glass jar for storage).
3. **Recycle**: This is the final step in the hierarchy. It involves processing waste materials into new products (e.g., melting down aluminum cans to make new ones). This requires energy and industrial processing, making it less ideal than reducing or reusing.
Option (a) and (c) are incorrect because they place recycling before reducing or reusing. Option (d) is incorrect because 'Remove' is not part of the standard 3R principle.
In food processing, HACCP stands for-
A)
Hazard Analysis Critical Control Point
B)
Hazard Assessment Critical Control Procedure
C)
Health Analysis and Critical Control Process
D)
Hazard Analysis and Chemical Control Protocol
HACCP is a systematic preventive approach to food safety from biological, chemical, and physical hazards in production processes that can cause the finished product to be unsafe.
1. **Hazard Analysis**: This involves identifying potential hazards (biological, chemical, or physical) that could occur at any stage of the food production process.
2. **Critical Control Point (CCP)**: This is a step at which control can be applied and is essential to prevent, eliminate, or reduce a food safety hazard to an acceptable level.
Analysis of other options:
- Option (b) is incorrect because 'Assessment' and 'Procedure' are not the standard terms used in the acronym.
- Option (c) is incorrect because it uses 'Health Analysis' and 'Process' instead of Hazard Analysis and Control Point.
- Option (d) is incorrect because it limits the scope to 'Chemical Control' and uses 'Protocol' instead of Control Point.
Enrichment of water bodies by nutrient that causes damage to the ecosystem is called-
A)
Plankton
B)
Degradation
C)
Biome
D)
Eutrophication
Step-by-step reasoning:
1. Analysis of the process: The question describes the enrichment of water bodies with nutrients (primarily nitrogen and phosphorus), which leads to excessive growth of algae (algal blooms). This process depletes dissolved oxygen in the water, leading to the death of fish and other aquatic organisms, thereby damaging the ecosystem.
2. Evaluating Option (d): Eutrophication is the precise scientific term for this process. It often occurs due to runoff from agricultural fertilizers or sewage discharge.
3. Evaluating Option (a): Plankton are microscopic organisms (phytoplankton and zooplankton) that drift in water; they are components of the ecosystem, not the process of nutrient enrichment.
4. Evaluating Option (b): Degradation is a general term referring to the decline in quality of an environment; while eutrophication is a form of degradation, it is not the specific term for nutrient enrichment.
5. Evaluating Option (c): A Biome is a large naturally occurring community of flora and fauna occupying a major habitat (e.g., tundra, tropical rainforest), which is unrelated to the process described.
Which of the following institutions is primarily responsible for price stabilization in agricultural marketing in India?
A)
National Bank for Agriculture and Rural Development (NABARD)
B)
Food Corporation of India (FCI)
C)
Reserve Bank of India (RBI)
D)
Indian Council of Agricultural Research (ICAR)
Price stabilization in Indian agricultural marketing is primarily achieved through the Minimum Support Price (MSP) mechanism. The Food Corporation of India (FCI) is the nodal agency responsible for implementing this by procuring food grains (like wheat and paddy) from farmers at the MSP when market prices fall below this threshold. This prevents prices from crashing, thereby protecting farmers' incomes. Additionally, FCI manages the buffer stocks used to release grains into the market during shortages to prevent price spikes for consumers.
Why other options are incorrect:
- a. NABARD: Primarily a development bank focused on providing credit and refinancing to rural and agricultural sectors, not on direct price stabilization of commodities.
- c. RBI: The central bank of India responsible for monetary policy, inflation control, and currency management, not the specific marketing of agricultural produce.
- d. ICAR: An autonomous organization focused on agricultural research and education to improve productivity and sustainability, not on market price interventions.
The Intensive Agricultural Development Programme popularly known as package programme was started in the year-
A)
1959
B)
1960
C)
1964
D)
1970
The Intensive Agricultural District Programme (IADP), commonly referred to as the 'Package Programme', was launched by the Government of India in 1960-61. The primary objective of this programme was to demonstrate the potential for increasing agricultural production by providing a 'package' of modern inputs (such as high-yielding variety seeds, chemical fertilizers, and improved irrigation) and technical guidance to farmers in selected districts. This programme served as a precursor to the Green Revolution in India.
- Option (a) 1959: Incorrect. While agricultural planning was ongoing, the specific IADP framework was not launched until 1960.
- Option (c) 1964: Incorrect. This period is associated with the introduction of high-yielding varieties (HYVs) of wheat from Mexico, but the IADP had already been operational.
- Option (d) 1970: Incorrect. By this time, the Green Revolution was already well-established across several Indian states.
Which communication model emphasizes a one-way flow of information from sender to receiver without feedback?
A)
Shannon and Weaver Model
B)
Schramm Model
C)
Transactional Model
D)
Interactive Model
The Shannon-Weaver Model (1949), often referred to as the 'Mathematical Theory of Communication,' is a linear model of communication. It describes a one-way process where a source encodes a message, transmits it through a channel (which may contain noise), and a receiver decodes it. In its original form, it lacks a feedback loop, making it a unidirectional or 'one-way' flow of information.
Why other options are incorrect:
- b. Schramm Model: This model introduced the concept of 'Field of Experience' and emphasized that communication is a circular process involving encoding, decoding, and interpreting, incorporating feedback.
- c. Transactional Model: This model views communication as a simultaneous process where both parties are senders and receivers at the same time, emphasizing a continuous exchange.
- d. Interactive Model: This model describes communication as a two-way process where the receiver provides feedback to the sender, though not necessarily simultaneously.
Sub soiler plough is best suited for-
A)
Deep ploughing
B)
Breaking hard pan
C)
Making ditches
D)
Intercultural operations
A subsoiler is a specialized primary tillage implement designed to penetrate deep into the soil without turning the soil over. Its primary purpose is to break up 'hard pan' (a compacted, dense layer of soil usually found below the normal plow depth) which restricts root penetration and inhibits water drainage.
Reasoning for other options:
- (a) Deep ploughing: While subsoilers go deep, 'ploughing' typically implies inversion or turning of the soil (like a moldboard plow), whereas subsoiling is a non-inversion process.
- (c) Making ditches: This is the function of a ditcher or a trencher, not a subsoiler.
- (d) Intercultural operations: These are shallow operations performed between rows of crops (like weeding or hoeing), whereas subsoiling is a heavy primary operation performed before planting.
What is the main objective of blanching vegetables before freezing?
A)
To improve taste
B)
To inactivate enzymes
C)
To enhance color
D)
To remove pesticides
Blanching is a critical preprocessing step in food preservation, particularly before freezing.
1. Why 'To inactivate enzymes' is correct: Vegetables contain natural enzymes (such as peroxidase and polyphenol oxidase) that remain active even at freezing temperatures. If not inactivated, these enzymes cause the degradation of vitamins, loss of flavor, and discoloration (browning) during storage. Blanching involves exposing the vegetable to boiling water or steam for a short time, which denatures these proteins (enzymes), thereby preserving the quality and shelf-life of the frozen product.
2. Why other options are incorrect:
- (a) To improve taste: Blanching does not typically improve taste; in some cases, over-blanching can actually lead to a loss of flavor due to leaching of water-soluble nutrients.
- (c) To enhance color: While blanching helps *preserve* the existing color by stopping enzymatic browning, its primary objective is the inactivation of the enzyme itself. In some cases, blanching can actually cause a slight loss of color.
- (d) To remove pesticides: Pesticides are removed through thorough washing and scrubbing, not through the heat treatment process of blanching.
The set of ecosystems is called-
A)
Biodiversity
B)
Ecology
C)
Biome
D)
Hydrosphere
Step-by-step reasoning:
1. Understanding the Hierarchy: In ecology, there is a hierarchical organization of biological systems: Organism → Population → Community → Ecosystem → Biome → Biosphere.
2. Defining Ecosystem: An ecosystem is a community of living organisms interacting with their physical environment.
3. Defining Biome: A biome is a large-scale geographical region characterized by specific climate conditions, soil types, and vegetation. It consists of a set of similar ecosystems that share these common characteristics (e.g., the Tropical Rainforest biome contains various rainforest ecosystems). Therefore, a set of ecosystems is called a Biome.
4. Evaluating other options:
- (a) Biodiversity: Refers to the variety and variability of life on Earth, not a structural set of ecosystems.
- (b) Ecology: This is the scientific study of the interactions between organisms and their environment, not a biological unit.
- (d) Hydrosphere: This refers to all the waters on the earth's surface, such as lakes and seas; it is a physical sphere, not a collection of ecosystems.
The first Biosphere reserve in India is-
A)
Nilgiri
B)
Sundarban
C)
Nanda Devi
D)
Nokrek
The Nilgiri Biosphere Reserve, located in the Western Ghats across Tamil Nadu, Kerala, and Karnataka, was the first biosphere reserve established in India in 1986. It was designated under UNESCO's Man and the Biosphere (MAB) programme to conserve the unique biodiversity of the region, including the Nilgiri Tahr.
Analysis of other options:
- b. Sundarban: Established later; it is famous for the Royal Bengal Tiger and mangrove forests.
- c. Nanda Devi: Established later; located in Uttarakhand.
- d. Nokrek: Established later; located in Meghalaya.
Therefore, Nilgiri is the correct answer as it holds the distinction of being the first.
The basic principle of extension education is-
A)
Learning by reading
B)
Learning by doing
C)
Learning by seeing
D)
Learning by hearing
Extension education is a non-formal educational process designed to bring about desirable changes in the knowledge, skills, and attitudes of people (primarily farmers). The fundamental philosophy of extension is based on the principle of 'Learning by Doing.' This approach emphasizes practical application and experiential learning, as farmers are more likely to adopt a new technology or practice if they have personally experienced its success through trial and practice.
Why other options are incorrect:
- a. Learning by reading: While literature is used, reading alone is passive and often ineffective for practical agricultural skills.
- c. Learning by seeing: This is known as 'Seeing is believing' (demonstration), which is a method used in extension, but the core principle that ensures mastery and adoption is the actual practice (doing).
- d. Learning by hearing: Auditory learning (lectures/radio) is a communication tool, but it is the least effective method for skill acquisition compared to hands-on experience.
Which of the following is the first step in Extension Programme Planning?
A)
Evaluation of the program
B)
Selection of teaching methods
C)
Identification of community needs
D)
Monitoring program activities
Extension Programme Planning is a systematic process used to bring about desired changes in the behavior of people. The logical sequence of steps in planning an extension program is as follows:
1. Collection of facts/Identification of community needs and resources: The first step is to analyze the current situation and identify the gaps between 'what is' and 'what should be'. Without knowing the specific needs of the community, any program would be irrelevant.
2. Analysis of the situation: Processing the collected facts to identify the core problems.
3. Setting objectives: Defining clear, measurable goals based on the identified needs.
4. Developing a plan of work: Determining the activities, timeline, and responsibilities.
5. Execution/Implementation: Putting the plan into action using various teaching methods.
6. Evaluation: Measuring the results against the objectives.
Analyzing the options:
- Option (a) Evaluation is the final step of the cycle.
- Option (b) Selection of teaching methods occurs during the planning of work or implementation phase.
- Option (d) Monitoring is a continuous process that happens during implementation to ensure the program is on track.
Therefore, the identification of community needs is the foundational first step.
Which of the following plough is mainly used for breaking hard pan and for deep ploughing with less disturbance to the top layers?
A)
Disc plough
B)
Mouldboard plough
C)
Chisel plough
D)
Ridge plough
The correct answer is the Chisel plough. Here is the detailed reasoning:
1. **Chisel Plough (Correct):** This is a primary tillage implement designed specifically for 'subsoiling' or breaking the 'hard pan' (a compacted layer of soil beneath the surface). Unlike mouldboard ploughs, it does not invert the soil; instead, it fractures and loosens the soil at deeper levels while leaving the top layer relatively undisturbed. This helps in improving water infiltration and root penetration.
2. **Disc Plough (Incorrect):** These are primarily used for primary tillage in hard, dry, or stony soils and for soils with heavy trash. They cut and invert the soil, causing significant disturbance to the top layers.
3. **Mouldboard Plough (Incorrect):** This is the classic primary tillage tool used for complete inversion of the soil. It is designed to turn the soil over to bury weeds and crop residue, which causes maximum disturbance to the top layers.
4. **Ridge Plough (Incorrect):** This is used for creating ridges and furrows for planting crops (like potatoes or sugarcane) to manage drainage and aeration; it is not used for breaking deep hard pans.
Which of the following practices is primarily used in quality control to ensure the safety of finished food products?
A)
Organoleptic testing to check flavor and texture
B)
Microbiological testing to detect harmful pathogens
C)
Determining the visual appeal through color matching
D)
Packaging testing to evaluate material strength
In food processing and quality control, 'safety' specifically refers to the absence of hazards that could cause illness or injury to the consumer.
1. **Microbiological testing (Option b)** is the primary tool for ensuring safety because it detects pathogens such as Salmonella, Listeria, and E. coli, which can cause foodborne illnesses. This is a critical step in HACCP (Hazard Analysis and Critical Control Points) systems.
2. **Organoleptic testing (Option a)** refers to sensory evaluation (taste, smell, texture). While important for quality and consumer acceptance, a product can taste and smell perfect while still containing dangerous levels of toxins or pathogens.
3. **Visual appeal/Color matching (Option c)** is a quality attribute related to aesthetics and standardization, not safety.
4. **Packaging testing (Option d)** ensures the integrity of the container and shelf-life stability, but it is a secondary measure. The primary safety check of the 'finished food product' itself is the detection of biological contaminants.
Inan ecological pyramid, the greatest amount of energy is typically found in which level?
A)
Producers (plants)
B)
Primary consumers (herbivores)
C)
Secondary consumers (carnivores)
D)
Decomposers
In an ecological pyramid of energy, the flow of energy follows the '10% Rule' (Lindeman's Law). This rule states that only about 10% of the energy available at one trophic level is transferred to the next higher level; the remaining 90% is lost as heat during metabolic processes (respiration) or remains unconsumed.
1. Producers (Plants): They occupy the first trophic level and capture solar energy via photosynthesis. Since they are the primary source of energy for the entire ecosystem, they possess the maximum amount of energy.
2. Primary Consumers (Herbivores): They receive only a fraction (approx. 10%) of the energy stored in the producers.
3. Secondary Consumers (Carnivores): They receive only a fraction of the energy from the primary consumers, resulting in even lower energy availability.
Because energy is lost at every step of the food chain, the energy pyramid is always upright, with the broadest base (greatest energy) at the producer level.
Which of the following represents the correct sequence of energy flow in an ecosystem?
A)
Producer -> Consumer — Decomposer — Sun
B)
Sun — Producer -> Consumer — Decomposer
C)
Consumer — Producer + Decomposer — Sun
D)
Decomposer —» Consumer —» Producer —» Sun
Energy flow in an ecosystem follows a unidirectional path based on the laws of thermodynamics.
1. **The Sun**: The primary source of energy for almost all ecosystems on Earth. Solar energy is captured by autotrophs.
2. **Producers**: Green plants and algae (autotrophs) convert solar energy into chemical energy (glucose) through the process of photosynthesis.
3. **Consumers**: Heterotrophs (herbivores, carnivores, and omnivores) obtain energy by consuming producers or other consumers.
4. **Decomposers**: Fungi and bacteria break down dead organic matter from all trophic levels, returning nutrients to the soil, though the energy they extract is eventually lost as heat.
Analysis of options:
- Option (a) is incorrect because it places the Sun at the end; energy originates from the Sun, not flows into it.
- Option (c) is incorrect as it suggests energy flows from consumers to producers.
- Option (d) is incorrect as it reverses the natural flow of energy.
Therefore, the sequence Sun $\rightarrow$ Producer $\rightarrow$ Consumer $\rightarrow$ Decomposer is the only scientifically accurate representation.
Central Institute of Post-harvest Engineering and Technology is located in-
A)
New Delhi
B)
Punjab
C)
Gujarat
D)
Uttar Pradesh
The Central Institute of Post-Harvest Engineering and Technology (CIPHET) is a premier research institute under the Indian Council of Agricultural Research (ICAR). It is headquartered in New Delhi. The institute focuses on developing and disseminating technologies for the post-harvest management of agricultural produce to reduce losses and enhance value addition.
Analysis of options:
- a. New Delhi: Correct. This is the location of the CIPHET headquarters.
- b. Punjab: Incorrect. While Punjab has many agricultural research centers (like PAU), CIPHET is not headquartered there.
- c. Gujarat: Incorrect. Gujarat hosts various agricultural institutes, but not the central headquarters of CIPHET.
- d. Uttar Pradesh: Incorrect. Although it is a major agricultural state, the central institute is located in the national capital.
Under distress sale, what is the relationship between marketed and marketable surplus for a farmer?
A)
Marketed surplus = Marketable surplus
B)
Marketed surplus > Marketable surplus
C)
Marketed surplus < Marketable surplus
D)
Marketed surplus = 0
To solve this, we must first define the two key terms in agricultural marketing:
1. Marketable Surplus: This is the portion of total production that remains after meeting the farmer's own consumption needs (family food), feed for livestock, and seed requirements for the next crop. Mathematically: Marketable Surplus = Total Production - (Home Consumption + Feed + Seed).
2. Marketed Surplus: This is the actual quantity of produce that the farmer sells in the market.
Under normal circumstances, Marketed Surplus is usually less than or equal to Marketable Surplus because farmers may store some of their surplus for future use or price speculation.
However, a 'Distress Sale' occurs when a farmer is forced to sell more than their actual surplus—often dipping into their own consumption reserves or seed stocks—due to an urgent need for cash (e.g., to repay a loan, cover a medical emergency, or pay for basic survival). In such a scenario, the farmer sells produce that was intended for home consumption, meaning the quantity sold (Marketed Surplus) exceeds the quantity that was technically available as a surplus (Marketable Surplus). Therefore, during distress sale: Marketed Surplus > Marketable Surplus.
For a farming system, the best PRA exercise:
A)
Transect walk
B)
Resource mapping
C)
Timeline
D)
Chapati diagram
Participatory Rural Appraisal (PRA) is a set of approaches used to enable local people to share, enhance, and analyze their knowledge of their own situation. When analyzing a 'farming system', the goal is often to understand the relative contribution of different enterprises (crops, livestock, poultry, etc.) to the total household income or resource use.
1. **Chapati Diagram (or Pie Chart):** This is the best tool for farming systems because it visually represents the proportion of income or labor derived from various components of the farm. It allows farmers to easily illustrate the 'share' of each enterprise in the overall system, making it ideal for analyzing the economic structure of a farming system.
2. **Transect Walk (Option a):** This is used for observing land use, soil types, and biodiversity across a geographical cross-section. While useful for spatial analysis, it does not quantify the system's components.
3. **Resource Mapping (Option b):** This is used to identify the location and distribution of physical resources (water, forests, land) within a village. It is a spatial tool, not a systemic analysis tool.
4. **Timeline (Option c):** This is used to record historical events or the sequence of activities over time. It is useful for understanding trends but not for analyzing the current composition of a farming system.
A production function with unitary elasticity indicates-
A)
Increasing returns
B)
Decreasing returns
C)
Nothing
D)
Constant returns
In agricultural economics and production theory, the elasticity of production (Ep) measures the responsiveness of output to a change in the input. It is defined as the percentage change in output divided by the percentage change in input.
1. Unitary Elasticity (Ep = 1): When the elasticity is exactly 1, it means a 1% increase in input leads to exactly a 1% increase in output. This indicates 'Constant Returns to Scale' (or constant returns), where the output increases in direct proportion to the input.
2. Increasing Returns (Ep > 1): When elasticity is greater than 1, a 1% increase in input leads to more than a 1% increase in output.
3. Decreasing Returns (Ep < 1): When elasticity is less than 1, a 1% increase in input leads to less than a 1% increase in output.
Therefore, unitary elasticity corresponds specifically to constant returns.
The diversity within a particular area or ecosystem and is usually expressed by the number of species in that ecosystem is-
A)
Genetic biodiversity
B)
Species biodiversity
C)
Alpha biodiversity
D)
Beta biodiversity
The question describes the concept of diversity within a single, particular area or ecosystem, specifically measured by the number of species present. This is the definition of Alpha Diversity.
Step-by-step breakdown:
1. **Alpha Diversity (α-diversity)**: This refers to the local diversity. It is the number of species (species richness) found within a single community, ecosystem, or a specific sample area.
2. **Beta Diversity (β-diversity)**: This refers to the comparison of diversity between two or more ecosystems. It measures the rate of change in species composition as one moves from one community to another.
3. **Gamma Diversity (γ-diversity)**: This is the total diversity of a large region (the sum of alpha and beta diversities).
4. **Genetic Biodiversity**: This refers to the variation of genes within a single species, not the number of different species in an area.
5. **Species Biodiversity**: While this is a general term for the variety of species, the specific ecological term for diversity 'within a particular area' as a metric of richness is 'Alpha biodiversity'.
Therefore, option (c) is the most precise technical term for the description provided.
The term ecosystem was proposed by-
A)
A.V. Lecuwenhock
B)
A.GTansley
C)
E. Hartigan
D)
E.J.Butler
The term 'ecosystem' was coined by the British botanist Arthur George Tansley (A.G. Tansley) in 1935. He defined it as a system integrating the biotic (living) community and the abiotic (non-living) environment, emphasizing that the two are inextricably linked and function as a single unit.
Analysis of other options:
- A.V. Leeuwenhoek (often misspelled as Lecuwenhock) is known as the 'Father of Microbiology' for his early observations of microorganisms using a microscope.
- E. Hartigan and E.J. Butler are not recognized as the originators of the term 'ecosystem' in ecological literature.