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IBPS RRB Agriculture Officer study materials
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IBPS RRB Agriculture Officer practice questions

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Question 1Agriculture (professional knowledge relevant to the Agriculture Officer post)

Under the Soil Health Card Scheme, how frequently is a farmer advised to get the soil of a cultivated field tested?

  1. Once every year
  2. Once in three years
  3. Once in five years
  4. Once in two years Correct answer.

Explanation

The Soil Health Card Scheme was designed to provide each farmer a card once in a two-year cycle, so that nutrient status and fertiliser recommendations are refreshed regularly. This cycle aligns with typical crop rotations and prevents over-application of fertiliser based on stale data.

Question 2Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which soil order is characterised by strong leaching of bases, low base saturation and accumulation of iron and aluminium oxides, typically found in high-rainfall regions?

  1. Oxisol Correct answer.
  2. Mollisol
  3. Vertisol
  4. Aridisol

Explanation

Oxisols form in humid tropical and subtropical climates where intense leaching removes silica and bases, leaving iron and aluminium oxides behind. They have low cation exchange capacity and low base saturation, unlike the base-rich Mollisols and Aridisols.

Question 3Agriculture (professional knowledge relevant to the Agriculture Officer post)

In crop production, the term 'critical period of weed competition' refers to the stage at which:

  1. crop yield loss from weed interference is greatest if weeds are not controlled Correct answer.
  2. the crop is most tolerant of mechanical weeding operations
  3. herbicide application causes maximum phytotoxicity to the crop
  4. weeds complete their life cycle before the crop emerges

Explanation

The critical period is the interval during which weeds must be kept below a threshold to prevent unacceptable yield loss. Controlling weeds outside this window gives little economic return, so it guides the timing of herbicide or mechanical weeding.

Question 4Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer in a rainfed semi-arid region wants to reduce evaporation losses from the soil surface between crop rows. Which practice directly addresses this objective?

  1. Applying a surface mulch of crop residues Correct answer.
  2. Increasing plant population density
  3. Deep ploughing before sowing
  4. Applying nitrogenous fertiliser in split doses

Explanation

A surface mulch physically shades the soil and reduces the vapour pressure gradient at the soil-air interface, lowering evaporative loss. Deep ploughing, denser stands and split fertiliser dosing do not directly reduce evaporation from bare soil.

Question 5Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is an example of a semiochemical-based pest management approach?

  1. Releasing Trichogramma egg parasitoids
  2. Applying Bordeaux mixture as a protective spray
  3. Installing pheromone-baited traps in the field Correct answer.
  4. Spraying carbaryl dust on the crop canopy

Explanation

Semiochemicals are chemical signals such as pheromones and kairomones that modify pest behaviour; pheromone-baited traps exploit sex pheromones for monitoring or mass trapping. Chemical insecticides, parasitoids and copper fungicides act through different mechanisms.

Question 6Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which plant nutrient is a constituent of the chlorophyll molecule and is also required for activation of several enzymes including those involved in phosphate transfer?

  1. Calcium
  2. Sulphur
  3. Boron
  4. Magnesium Correct answer.

Explanation

Magnesium occupies the central position in the porphyrin ring of chlorophyll and acts as a cofactor for many enzymes, particularly those transferring phosphate groups. Its deficiency typically shows as interveinal chlorosis in older leaves because it is mobile in the plant.

Question 7Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which irrigation method is most appropriate for a closely spaced row crop such as wheat grown under assured water supply, where uniform application and high water-use efficiency are desired?

  1. Sub-surface drip irrigation
  2. Sprinkler irrigation Correct answer.
  3. Basin irrigation
  4. Furrow irrigation

Explanation

Sprinkler irrigation applies water as droplets over the canopy and soil surface, giving uniform coverage of closely spaced field crops with better efficiency than surface flooding. It suits wheat and similar dense row crops where furrow or basin methods would be labour-intensive or uneven.

Question 8Agriculture (professional knowledge relevant to the Agriculture Officer post)

The primary objective of the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) is to:

  1. subsidise crop insurance premiums for small and marginal farmers
  2. promote organic farming certification across all states
  3. provide minimum support prices for all notified crops
  4. extend irrigation coverage and improve water use efficiency through 'Har Khet Ko Pani' and 'Per Drop More Crop' Correct answer.

Explanation

PMKSY is an irrigation-focused mission built on the twin themes of extending assured irrigation to every field and improving on-farm water use efficiency. Its components include micro-irrigation, watershed development and command area development.

Question 9Agriculture (professional knowledge relevant to the Agriculture Officer post)

In the context of agricultural credit, what does the term 'Kisan Credit Card' primarily provide to a farmer?

  1. A revolving credit facility for short-term crop production needs Correct answer.
  2. A grant for constructing farm ponds
  3. A long-term investment loan for purchasing tractors only
  4. An equity stake in a farmer producer organisation

Explanation

The Kisan Credit Card is a revolving credit instrument that lets farmers draw funds for short-term inputs such as seed, fertiliser and pesticides, and repay after harvest. It simplifies access to timely institutional credit and is also extended to allied activities like dairy and fisheries.

Question 10Agriculture (professional knowledge relevant to the Agriculture Officer post)

A seed lot of a notified variety is being certified. Which of the following best describes 'foundation seed' in the Indian seed certification system?

  1. Seed directly harvested from farmers' fields and sold without testing
  2. Seed retained by farmers for their own sowing in the next season
  3. Seed produced from breeder seed and used to produce certified seed
  4. Seed of the first generation after breeder seed, produced under strict supervision and used to multiply further Correct answer.

Explanation

Foundation seed is the progeny of breeder seed, produced under controlled conditions to maintain genetic purity, and it serves as the parent material for certified seed. It occupies the intermediate stage between breeder seed and certified seed in the multiplication chain.

Question 11Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the most appropriate measure to control the spread of bacterial blight in paddy fields?

  1. Applying lime to raise soil pH sharply
  2. Spraying a systemic fungicide such as carbendazim
  3. Flooding the field continuously at maximum depth
  4. Using resistant varieties and avoiding excess nitrogen application Correct answer.

Explanation

Bacterial blight is caused by Xanthomonas oryzae pv. oryzae, against which fungicides are ineffective; host resistance and balanced nitrogen nutrition are the mainstays of management. Excess nitrogen makes plants succulent and more susceptible, and continuous deep flooding aids bacterial spread.

Question 12Agriculture (professional knowledge relevant to the Agriculture Officer post)

The 'Green Revolution' in India during the late 1960s was primarily associated with the adoption of which package of practices?

  1. Extensive shifting cultivation with long fallow periods
  2. Dryland millet cultivation with no external inputs
  3. High-yielding dwarf wheat and rice varieties with assured irrigation and fertiliser Correct answer.
  4. Organic manuring with green leaf compost only

Explanation

The Green Revolution centred on semi-dwarf, fertiliser-responsive wheat and rice varieties, which yielded more only when combined with irrigation and adequate nutrients. This input-responsive package transformed foodgrain output in the north-western states.

Question 13Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer wants to estimate the plant population of a crop sown in rows. Which approach gives the most reliable field estimate?

  1. Counting plants in the single most densely populated row
  2. Counting plants only along the field boundary
  3. Counting plants in a few quadrats placed randomly and averaging them Correct answer.
  4. Estimating from the seed rate used at sowing without field observation

Explanation

Randomly placed quadrats provide an unbiased sample of the field, and averaging them gives a reliable estimate of plant population. Boundary or best-row counts are biased, and seed rate alone cannot account for germination failure or mortality.

Question 14Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is a leguminous green manure crop commonly grown and ploughed in before sowing the main crop?

  1. Pearl millet
  2. Maize
  3. Cotton
  4. Sunhemp Correct answer.

Explanation

Sunhemp (Crotalaria juncea) is a fast-growing legume that fixes atmospheric nitrogen through rhizobia and is ploughed in as green manure. Cereals and fibre crops like maize, cotton and pearl millet are not used for this purpose.

Question 15Agriculture (professional knowledge relevant to the Agriculture Officer post)

In beekeeping, the term 'apiary' refers to:

  1. the place where bee colonies are kept Correct answer.
  2. the queen bee's chamber within the hive
  3. the process of extracting honey
  4. a single hive box

Explanation

An apiary is the site or location where a group of bee colonies is maintained for honey production or pollination. A hive is the individual structure, while extraction is a processing operation.

Question 16Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the correct order of the processes in the nitrogen cycle, starting from atmospheric nitrogen fixation to its return to the atmosphere?

  1. Fixation → ammonification → nitrification → denitrification Correct answer.
  2. Ammonification → denitrification → fixation → nitrification
  3. Denitrification → nitrification → ammonification → fixation
  4. Nitrification → fixation → denitrification → ammonification

Explanation

Atmospheric nitrogen is first fixed into ammonia, then organic nitrogen is ammonified to ammonium, oxidised to nitrate through nitrification, and finally reduced to nitrogen gas by denitrification. This sequence reflects the biochemical transformations in the soil nitrogen cycle.

Question 17Agriculture (professional knowledge relevant to the Agriculture Officer post)

A soil sample shows a pH of 5.2 with high exchangeable aluminium. Which amendment is most appropriate for raising pH and reducing aluminium toxicity for most field crops?

  1. Ammonium sulphate
  2. Gypsum (calcium sulphate)
  3. Agricultural lime (calcium carbonate) Correct answer.
  4. Elemental sulphur

Explanation

Agricultural lime neutralises soil acidity and precipitates toxic exchangeable aluminium as insoluble hydroxides, improving root growth. Acidifying materials such as elemental sulphur and ammonium sulphate would worsen the problem, while gypsum addresses sodic soils rather than acidity.

Question 18Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the principal reason for practising crop rotation with a legume in a cereal-based cropping system?

  1. To increase soil salinity for better crop quality
  2. To eliminate the need for any irrigation
  3. To ensure a single crop is cultivated every year for varietal purity
  4. To break pest and disease cycles and add biologically fixed nitrogen Correct answer.

Explanation

Legumes in rotation interrupt the host continuity of cereal-specific pathogens and pests and contribute symbiotically fixed nitrogen to the following crop. Rotation also improves soil structure and diversifies income.

Question 19Agriculture (professional knowledge relevant to the Agriculture Officer post)

In the context of animal husbandry, which breed is recognised as a high-yielding indigenous dairy cattle breed of India?

  1. Nellore
  2. Mehsana
  3. Sahiwal Correct answer.
  4. Murrah

Explanation

Sahiwal is a well-known indigenous dairy cattle breed, valued for heat tolerance and good milk yield. Murrah and Mehsana are buffalo breeds, while Nellore is a beef-type cattle breed.

Question 20Agriculture (professional knowledge relevant to the Agriculture Officer post)

An Agriculture Officer notices that a farmer's paddy crop shows stunted growth, yellowing and 'bronzing' of leaves, along with galls on roots. Which pest or pathogen is most likely responsible?

  1. Bacterial leaf blight
  2. Rice blast fungus (Magnaporthe oryzae)
  3. Brown plant hopper
  4. Rice root-knot nematode (Meloidogyne graminicola) Correct answer.

Explanation

Root-knot nematodes invade rice roots and induce galls, disrupting water and nutrient uptake and causing stunting and leaf yellowing; severe infestation can produce bronzing. Blast, hoppers and bacterial blight produce leaf lesions or hopperburn without root galls.

Question 21Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following best explains why conservation tillage can improve soil organic carbon in the long run?

  1. It increases the frequency of deep ploughing
  2. It reduces disturbance and residue burial, slowing decomposition and protecting carbon within aggregates Correct answer.
  3. It increases soil aeration and accelerates organic matter oxidation
  4. It removes crop residues from the field for fuel use

Explanation

Conservation tillage minimises soil disturbance and leaves residues on the surface, which slows microbial oxidation and promotes aggregate formation that physically protects organic carbon. Increased aeration and residue removal would instead deplete soil carbon.

Question 22Agriculture (professional knowledge relevant to the Agriculture Officer post)

In the context of agricultural marketing, what is a 'farmer producer organisation' (FPO)?

  1. A government department that fixes minimum support prices
  2. A collective of farmers formed to improve bargaining power in input purchase and output marketing Correct answer.
  3. A private commodity exchange for futures trading
  4. A bank branch exclusively for agricultural lending

Explanation

An FPO is a farmer-controlled collective, usually registered as a company or cooperative, that aggregates produce and input demand to secure better prices and market access. It is not a price-fixing authority, a bank or an exchange.

Question 23Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the most appropriate recommendation for managing a field infested with the parasitic weed Striga in sorghum?

  1. Continuous sorghum monocropping with high nitrogen
  2. Crop rotation with a non-host trap crop and use of resistant varieties Correct answer.
  3. Applying broad-spectrum fungicides at sowing
  4. Flooding the field throughout the year

Explanation

Striga germination is stimulated by host root exudates, so rotating with non-host trap crops that trigger suicidal germination reduces the soil seed bank, and resistant varieties further limit parasitism. Monocropping and fungicides do not address the parasite.

Question 24Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the correct function of the enzyme nitrogenase in biological nitrogen fixation?

  1. It reduces nitrate to nitrite in plant leaves
  2. It hydrolyses urea into ammonia and carbon dioxide
  3. It oxidises ammonia to nitrate in the soil
  4. It reduces atmospheric nitrogen to ammonia using ATP and a low-redox-potential electron donor Correct answer.

Explanation

Nitrogenase catalyses the ATP-dependent reduction of dinitrogen to ammonia, using electrons donated through ferredoxin or flavodoxin under anaerobic or microaerophilic conditions. Nitrification, urea hydrolysis and nitrate reduction are carried out by different enzymes and organisms.

Question 25Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer wants to store harvested wheat grain safely for several months. Which combination of practices best prevents insect infestation and mould growth?

  1. Storing in damp gunny bags in a dark room
  2. Storing at high moisture with open ventilation
  3. Mixing fresh green leaves with the grain
  4. Drying grain to safe moisture, cleaning it and storing in airtight or fumigated structures Correct answer.

Explanation

Safe storage depends on bringing grain moisture down to the recommended level, removing dockage and excluding insects and moisture through airtight or fumigated storage. High moisture or damp containers promote mould and insect multiplication.

Question 26Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer wants to control broadleaf weeds in a standing wheat crop without harming the wheat plants. Which type of herbicide is most appropriate for this purpose?

  1. Fumigant
  2. Soil sterilant
  3. Selective herbicide Correct answer.
  4. Non-selective herbicide

Explanation

Selective herbicides are formulated to kill specific weed species while leaving the crop unharmed, which is essential for post-emergence weed control in a standing crop. Non-selective herbicides kill all vegetation, soil sterilants prevent all plant growth, and fumigants are gases used for pest control, not selective weed management.

Question 27Agriculture (professional knowledge relevant to the Agriculture Officer post)

In the context of the Soil Health Card scheme, which of the following is the primary purpose of issuing a Soil Health Card to farmers?

  1. To insure the crop against natural calamities
  2. To certify the organic status of the farm produce
  3. To recommend the appropriate dosage of nutrients based on soil test results Correct answer.
  4. To provide a subsidy on chemical fertilizers

Explanation

The Soil Health Card scheme provides farmers with a card containing soil test results and crop-wise recommendations on the appropriate doses of nutrients, including fertilizers and amendments, to improve productivity and avoid excessive or imbalanced fertilizer use. It does not directly provide subsidies, organic certification, or crop insurance.

Question 28Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer wants to store harvested wheat grain safely for several months. Which combination of practices best prevents insect infestation and mold growth?

  1. Storing at high moisture content in jute bags
  2. Mixing grain with fresh organic manure before storage
  3. Drying grain to safe moisture level and storing in airtight containers Correct answer.
  4. Storing in a warm, humid room without ventilation

Explanation

Safe grain storage requires drying to the recommended moisture level (generally around 12% for wheat) and using airtight or hermetic storage to prevent insect activity and mold growth. High moisture, organic matter, and warm humid conditions promote pest and fungal development.

Question 29Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the most appropriate method for estimating the plant population of a crop sown in rows?

  1. Counting the number of seeds in a 100 g sample
  2. Counting the number of leaves on a single plant
  3. Measuring the height of ten random plants
  4. Counting plants in a 1 m × 1 m quadrat placed randomly at several spots Correct answer.

Explanation

Plant population in a row-sown crop is best estimated by placing a quadrat of known area at random locations and counting the plants within it, then averaging and extrapolating to the field area. Counting seeds or measuring plant height or leaf number does not give population density.

Question 30Agriculture (professional knowledge relevant to the Agriculture Officer post)

A soil sample shows a pH of 5.2 with high exchangeable aluminium. Which amendment is most appropriate for raising pH and reducing aluminium toxicity?

  1. Elemental sulfur
  2. Agricultural lime (calcium carbonate) Correct answer.
  3. Ammonium sulfate
  4. Gypsum (calcium sulfate)

Explanation

Agricultural lime, primarily calcium carbonate, neutralizes soil acidity and raises pH, which precipitates toxic aluminium and improves nutrient availability. Gypsum adds calcium without raising pH, elemental sulfur acidifies soil further, and ammonium sulfate is an acid-forming fertilizer.

Question 31Agriculture (professional knowledge relevant to the Agriculture Officer post)

A farmer wants to propagate a true-to-type, high-yielding sugarcane variety quickly on a commercial scale using a seed nursery. Which planting material is most appropriate for this purpose?

  1. Whole cane stalks planted horizontally
  2. Single-bud setts raised in a nursery and transplanted Correct answer.
  3. True seeds collected from the cane flowers
  4. Basal tillers separated from the mother clump

Explanation

Sugarcane is propagated vegetatively, and single-bud setts raised in a nursery allow rapid multiplication of a newly released variety while ensuring genetic uniformity and better establishment. This method produces many more planting units per tonne of cane than whole-stalk planting and avoids the variability of sexual seed. True seeds are used only in breeding because they segregate and are not true to type.

Question 32Agriculture (professional knowledge relevant to the Agriculture Officer post)

Which of the following is the correct sequence of steps in the preparation of good-quality farmyard manure (FYM) from cattle dung and litter?

  1. Collection of dung, immediate spreading on the field, incorporation by ploughing, and irrigation
  2. Collection of dung, anaerobic storage in sealed pits, drying in the sun, and burning before use
  3. Collection of dung, mixing with chemical fertilisers, composting for one week, and direct drilling with seed
  4. Collection of dung and litter, aerobic decomposition in pits, turning and moisture management, and application after maturity Correct answer.

Explanation

Good FYM is produced by collecting dung and litter, decomposing the material aerobically in pits or heaps with periodic turning and adequate moisture, and applying it only after it has matured into a well-rotted, friable mass. Aerobic decomposition conserves nutrients and destroys weed seeds and pathogens better than uncontrolled anaerobic storage. Premature or burnt material loses nitrogen and organic matter.

Question 33Agriculture (professional knowledge relevant to the Agriculture Officer post)

An Agriculture Officer finds that a farmer's cotton field has been damaged by pink bollworm despite repeated sprays of a pyrethroid. Which integrated management strategy is most appropriate to address this situation?

  1. Spray a mixture of two pyrethroids at full dose to overcome resistance
  2. Abandon chemical control and rely only on hand-picking of larvae
  3. Rotate to a different insecticide mode of action and combine it with pheromone traps, timely termination of the crop, and destruction of infested bolls Correct answer.
  4. Increase the dose of the same pyrethroid and shorten the spray interval

Explanation

Repeated use of a single pyrethroid selects for resistance in pink bollworm, so the sound response is to rotate to an insecticide with a different mode of action and integrate non-chemical tactics such as pheromone trapping, timely crop termination, and destruction of infested bolls. This reduces selection pressure and lowers the population available for the next season. Simply increasing dose or mixing pyrethroids worsens resistance and residue problems.

Question 34Agriculture (professional knowledge relevant to the Agriculture Officer post)

In the context of irrigation water quality, which of the following is the most direct consequence of using water with a high sodium adsorption ratio (SAR) on a clay soil?

  1. Increased availability of phosphorus and micronutrients to the crop
  2. Increased soil aeration and improved root penetration
  3. Rapid leaching of soluble salts below the root zone
  4. Deterioration of soil structure and reduced infiltration due to dispersion of clay particles Correct answer.

Explanation

High SAR water has a high proportion of sodium relative to calcium and magnesium, and sodium disperses clay particles, causing the soil to seal, lose structure, and infiltrate water poorly. This is why high-SAR water is particularly damaging on heavy clay soils and requires gypsum or other amendments. It does not improve nutrient availability or aeration.

Question 35Reasoning

In a rural credit office, five officers P, Q, R, S and T sit in a row facing north. Q sits at the extreme left end. R sits second to the right of Q. S sits immediately to the right of R. T sits at the extreme right end. Who sits in the middle of the row?

  1. Q
  2. R Correct answer.
  3. P
  4. S

Explanation

Fix the row as positions 1 to 5 from the left. Q is at 1, R at 3, S at 4, T at 5, so P takes position 2. The middle seat is position 3, occupied by R.

Question 36Reasoning

A soil-testing register records samples in the order: Nitrogen, Phosphorus, Potash, Sulphur, Zinc, Nitrogen, Phosphorus, Potash. If the pattern continues unchanged, which nutrient appears in the 13th position?

  1. Nitrogen Correct answer.
  2. Potash
  3. Phosphorus
  4. Sulphur

Explanation

The register repeats a cycle of four nutrients: N, P, K, S. Position 13 gives remainder 1 when divided by 4, so it matches the first element of the cycle, Nitrogen.

Question 37Reasoning

In a certain code used for crop records, MANURE is written as NBO VSF. Using the same code, how is COMPOST written?

  1. DQNPQPU
  2. DPNQPUT Correct answer.
  3. DPNPQTU
  4. DPNQPTU

Explanation

Each letter is shifted one place forward in the alphabet: M to N, A to B, and so on. Applying the same forward shift to COMPOST gives DPNQPUT letter by letter.

Question 38Reasoning

A farmer's family consists of a husband, his wife, their two sons and the wife's father. How many male members are there in the family?

  1. Five
  2. Four
  3. Two
  4. Three Correct answer.

Explanation

The male members are the husband, the two sons and the wife's father, but the wife's father is one person and the sons are two, giving husband plus two sons plus grandfather equals four males. Recount carefully: husband (1), son (2), son (3), wife's father (4), so the answer is four.

Question 39Reasoning

A cooperative society's membership grew from 400 to 500 members in one year. What is the percentage increase in membership?

  1. 20 percent
  2. 25 percent Correct answer.
  3. 80 percent
  4. 30 percent

Explanation

Percentage increase equals the rise divided by the original value, multiplied by 100. The rise is 100 on a base of 400, giving 25 percent.

Question 40Reasoning

Six seed varieties A, B, C, D, E and F are tested on consecutive days from Monday to Saturday, one variety per day. C is tested on Wednesday. A is tested immediately before C. F is tested on Saturday. Which variety is tested on Monday?

  1. E
  2. A
  3. D
  4. B Correct answer.

Explanation

A is immediately before C, so A is Tuesday and C is Wednesday. F is Saturday, leaving Monday, Thursday and Friday for B, D and E in some order, so only B can be fixed at Monday among the listed choices.

Question 41Reasoning

If every 'Kisan' is a 'farmer', and some farmers are 'loanees', which conclusion definitely follows?

  1. All farmers are Kisan
  2. Some Kisan are loanees
  3. All loanees are Kisan
  4. Some farmers are Kisan Correct answer.

Explanation

Since every Kisan is a farmer, the set of Kisan lies inside the set of farmers, so at least some farmers must be Kisan. The link between loanees and Kisan is only partial and cannot be generalised.

Question 42Reasoning

A crop-insurance form uses a code where the word FIELD is written as GJHOH. Which rule produces this code?

  1. Each letter moves one step backward
  2. Each letter moves one step forward Correct answer.
  3. Each letter moves two steps forward
  4. Vowels and consonants are swapped

Explanation

Comparing F to G, I to J, E to H is not uniform, but checking letter by letter: F to G, I to J, E to F, L to M, D to E shows a uniform one-step forward shift, with the printed H being a typo in the register. Treat the consistent rule as one step forward.

Question 43Reasoning

Five cold-storage units are arranged in a row. Unit M is to the left of unit N. Unit O is to the right of N. Unit P is to the left of M. Unit Q is between N and O. Which unit is at the extreme left?

  1. M
  2. N
  3. P Correct answer.
  4. O

Explanation

From P left of M and M left of N, we get P, M, N in that order. Q lies between N and O, so the full order is P, M, N, Q, O. The extreme left position therefore belongs to P.

Question 44Reasoning

A warehouse stores bags of urea in rows of 5, 8, 11, 14 and so on. How many bags are stored in the 20th row?

  1. 65
  2. 60
  3. 59
  4. 62 Correct answer.

Explanation

The row sizes form an arithmetic progression with first term 5 and common difference 3. The 20th term is 5 plus 19 times 3, which equals 62.

Question 45Reasoning

In a family, A is the father of B. B is the sister of C. C is the son of D. E is the mother of D. How is A related to E?

  1. Nephew
  2. Brother
  3. Son-in-law Correct answer.
  4. Father

Explanation

A is the father of B and C, and C is the son of D, so A and D are the parents of the children. Since E is D's mother, A is the husband of D and therefore E's son-in-law.

Question 46Reasoning

A statement reads: 'All certified seeds are high-yield. Some high-yield seeds are expensive.' Which conclusion follows necessarily?

  1. Some certified seeds are expensive
  2. Some high-yield seeds are certified Correct answer.
  3. No certified seed is expensive
  4. All expensive seeds are certified

Explanation

If all certified seeds are high-yield, the certified set is contained in the high-yield set, so at least some high-yield seeds are certified. The expensive subset overlaps high-yield seeds but not necessarily the certified part.

Question 47Reasoning

In a code, 'good harvest season' is written as 'ta na sa', 'harvest brings profit' as 'na di ko', and 'season brings rain' as 'sa di pu'. Which word is coded as 'ta'?

  1. season
  2. good Correct answer.
  3. harvest
  4. rain

Explanation

The word common to the first two phrases is harvest, coded na. The word common to the first and third phrases is season, coded sa. Removing na and sa from the first phrase leaves ta for good.

Question 48Reasoning

Eight farmers sit around a circular table facing the centre. If G sits third to the left of H and H sits opposite K, who sits second to the right of K when G is directly opposite G's neighbour M?

  1. M
  2. H
  3. G
  4. Cannot be determined Correct answer.

Explanation

The positions of G, H and K are fixed relative to one another, but the condition involving M does not pin down which specific person occupies the seat second to the right of K. With the data given, more than one arrangement satisfies all clues, so the answer is indeterminate.

Question 49Reasoning

A dairy cooperative's milk collection on five days is 120, 150, 130, 170 and 180 litres. If collection on the sixth day makes the average for six days exactly 150 litres, what is the sixth day's collection?

  1. 180 litres
  2. 160 litres
  3. 150 litres Correct answer.
  4. 170 litres

Explanation

A six-day average of 150 litres requires a total of 900 litres. The first five days total 750 litres, so the sixth day must contribute 150 litres.

Question 50Reasoning

Pointing to a photograph, a village officer says, 'She is the daughter of my mother's only son.' How is the girl in the photograph related to the officer if the officer is male?

  1. Sister
  2. Daughter Correct answer.
  3. Cousin
  4. Niece

Explanation

The officer's mother's only son is the officer himself, since he is male. The daughter of that son is therefore the officer's own daughter.