PYQs - IBPS SO AFO Mains Exam 2021 (Agriculture Knowledge)

 

IBPS SO AFO Mains Exam 2021 (Agriculture Knowledge)

Previous Year Questions (PYQs)

Q(1). Which of the following crops has the botanical name of Oryza sativa?

(a.) Rice

(b.) Wheat

(c.) Gram

(d.) Pea

(e.) Maize

Q(2). What is the uniform premium rate for all Rabi crops as per PMFBY?

(a.) 1.5 Percent

(b.) 2 Percent

(c.) 3 Percent

(d.) 5 Percent

(e.) 4 Percent

Q(3). Pungency in onion is due to which compound?

(a.) Allyl propyl disulphide

(b.) Diallyl disulphide

(c.) Isothiocyanate

(d.) Memordicocite

(e.) Anthocyanin

Q(4). Blossom end rot is a problem in ______ due to deficiency of _______?

(a.) Tomato and Ca

(b.) Tomato and B

(c.) Cauliflower and Ca

(d.) Cauliflower and B

(e.) None of these

Q(5). Effluent treatment of ponds is required for?

(a.) Reducing the organic content and removing pathogens from the pond

(b.) Increasing the organic content and adding pathogens to the pond

(c.) Reducing oxygen in the pond

(d.) Increasing CO₂ in the pond

(e.) None of these

Q(6). As per the Prevention of Food Adulteration Act, SNF in cow milk is?

(a.) 8.5 Percent

(b.) 8.0 Percent

(c.) 9.0 Percent

(d.) 9.5 Percent

(e.) None of these

Q(7). Piercing and sucking mouthparts are found in which order?

(a.) Hemiptera

(b.) Coleoptera

(c.) Isoptera

(d.) Lepidoptera

(e.) Arthoptera

Q(8). The superiority of F₁ hybrids in one or more characters over its parents is known as?

(a.) Heterosis

(b.) Backcross

(c.) Test cross

(d.) Top cross

(e.) None of these

Q(9). What is the ICMR recommendation for vegetables in grams?

(a.) 300 gram

(b.) 400 gram

(c.) 500 gram

(d.) 200 gram

(e.) 100 gram

Q(10). In which scheme do farmers directly get Rs. 6000/- support from the government annually?

(a.) PM-Kisan

(b.) PMFBY

(c.) e-Nam

(d.) KCC

(e.) PMMSY

Q(11). Pendimethalin is used against _________?

(a.) Weeds

(b.) Virus

(c.) Fungus

(d.) Bacteria

(e.) Nematode

Q(12). The act of parturition of a cow is called as?

(a.) Farrowing

(b.) Calving

(c.) Lambing

(d.) Kidding

(e.) None of these

Q(13). RM (Reichert – Meissl Number) test is done to check the purity of …….?

(a.) Ghee

(b.) Butter

(c.) Skimmed milk

(d.) Toned milk

(e.) Khoa

Q(14). Water holding capacity in descending order?

(a.) Clay > Silt > Sand

(b.) Sand > Silt > Clay

(c.) Silt < Clay < Sand

(d.) Clay < Silt < Sand

(e.) None of these

Q(15). Symptoms of Powdery mildew of pea first appear on?

(a.) Pod

(b.) Leaves

(c.) Stem

(d.) Flower

(e.) Roots

Q(16). Family of Mustard?

(a.) Cruciferae

(b.) Gramineae

(c.) Leguminosae

(d.) Cucurbitaceae

(e.) Solanaceae

Q(17). Process which softens the seed coat to allow water and gas exchange?

(a.) Scarification

(b.) Stratification

(c.) Vaccination

(d.) Vacuolization

(e.) None of these

Q(18). Protein present in silk?

(a.) Sericin

(b.) Keratin

(c.) Collagen

(d.) Albumin

(e.) Oryzenin

Q(19). Process of separation of silk from cocoon?

(a.) Reeling

(b.) Stifling

(c.) Arrowing

(d.) Rabbing

(e.) None of these

Q(20). Antheraea mylitta is?

(a.) Temperate tasar

(b.) Tropical tasar

(c.) Temperate muga

(d.) Tropical muga

(e.) Eri silkworm

Q(21). Retting is a process of which crop?

(a.) Rice

(b.) Jute

(c.) Gram

(d.) Tobacco

(e.) Potato

Q(22). Fruit of Rose is known as?

(a.) Hips

(b.) Capsule

(c.) Pods

(d.) Drupe

(e.) Berry

Q(23). Which of the following chemicals is used for Polyploidy Breeding?

(a.) Colchicine

(b.) X-ray

(c.) GA₃

(d.) Acridine dyes

(e.) Auxin

Q(24). Cross of two different breeds alternatively?

(a.) Crisscross

(b.) Backcross

(c.) Test cross

(d.) Outcross

(e.) Close breeding

Q(25). Fruit of Pineapple is known as?

(a.) Sorosis

(b.) Pome

(c.) Pepo

(d.) Berry

(e.) Drupe

Q(26). The credit for the success of KVK goes to?

(a.) Mohan Singh Mehta

(b.) Chandrika Prasad

(c.) Mangla Rai

(d.) Dr. R. S. Paroda

(e.) Balwant Mehta

Q(27). Buffalo breed from Gujarat that has sickle-shaped horns?

(a.) Surati

(b.) Bhadawari

(c.) Murrah

(d.) Mehsana

(e.) Nili Ravi

Q(28). Reclamation of alkali soils is done by using?

(a.) Gypsum

(b.) Rock Sulphate

(c.) SSP

(d.) Lime

(e.) None of these

Q(29). Which is the host of Japanese encephalitis?

(a.) Pig

(b.) Mosquito

(c.) Cow

(d.) Goat

(e.) Sheep

Q(30). Mandi is a type of market?

(a.) Primary Type

(b.) Fairs

(c.) Secondary

(d.) Tertiary

(e.) None of these

Q(31). Mayer published a paper in 1886 on the disease, which he named “Mosaic disease” of which crop, and described its symptoms in detail?

(a.) Tobacco

(b.) Tomato

(c.) Potato

(d.) Banana

(e.) Papaya

Q(32). What is a smother crop?

(a.) Rapidly growing crop that is used to suppress or stop the growth of weed

(b.) Rapidly growing weed that is used to suppress or stop the growth of crop

(c.) A variety of cereals that grow slowly

(d.) A variety of cereals that grow faster

(e.) None of these

Q(33). Late blight is the disease of which crop?

(a.) Potato

(b.) Tobacco

(c.) Wheat

(d.) Chilli

(e.) None of these

Q(34). Pre-seasonal planting of sugarcane followed in Maharashtra and Karnataka occurs in which months?

(a.) January-February

(b.) July-August

(c.) May-June

(d.) November-December

(e.) October-November

Q(35). Who recommends the Minimum Support Price (MSP) and issues prices?

(a.) Ministry of Agriculture

(b.) NAFED

(c.) NABARD

(d.) CACP

(e.) Agmark

Q(36). Mouldboard is an instrument used for?

(a.) Ploughing

(b.) Weeding

(c.) Harrowing

(d.) Levelling

(e.) None of these

Q(37). Soil moisture is measured by which instrument?

(a.) Tensiometer

(b.) Anemometer

(c.) Auxanometer

(d.) Manometer

(e.) Potometer

Q(38). Which of the following is a European bee?

(a.) Apis mellifera

(b.) Apis dorsata

(c.) Apis cerana

(d.) Apis melipona

(e.) None of these

Q(39). 2,4-D is used as?

(a.) Herbicide

(b.) Insecticide

(c.) Pesticide

(d.) Bio-Pesticide

(e.) None of these

Q(40). Which of the following is not an example of sedimentary rock?

(a.) Granite

(b.) Limestone

(c.) Sandstone

(d.) Dolomite

(e.) None of these

Q(41). Why is buffalo milk whiter than cow milk?

(a.) Beta-carotene pigment gets converted to colourless pigment

(b.) It contains more fat

(c.) It contains no lactose

(d.) It contains more calcium

(e.) None of these

Q(42). Scratching, rubbing and softening seed coat to make it permeable for water is known as?

(a.) Stratification

(b.) Scarification

(c.) Roughing

(d.) Cleaning

(e.) None of these

Q(43). Tree + crop + pasture is known as?

(a.) Agrosilvopastoral system

(b.) Silviculture

(c.) Horti-pastoral

(d.) Agri-Horti-pastoral

(e.) Agri-Silviculture

Q(44). What is zoonosis?

(a.) Diseases transferred from animals to humans

(b.) Diseases transferred from humans to animals

(c.) Diseases transferred from birds to animals

(d.) Diseases transferred from humans to birds

(e.) None of these

Q(45). Fat globules break in uniform size during which process?

(a.) Homogenization

(b.) Sterilization

(c.) Pasteurization

(d.) Calcification

(e.) None of these

Q(46). Anammox is one of the steps of which cycle?

(a.) Nitrogen Cycle

(b.) Hydrogen Cycle

(c.) Carbon Cycle

(d.) Sulphur Cycle

(e.) None of these

Q(47). The off-type crop varieties in the main crop are known as?

(a.) Rouging

(b.) Weeding

(c.) Isolating

(d.) Hoeing

(e.) None of these

Q(48). In pomegranate, what is the disorder that cannot be identified externally, whereas the arils become soft, light creamy-brown to dark blackish-brown and unfit for consumption?

(a.) Internal breakdown of pomegranate

(b.) Cracking

(c.) Fruit-sucking moth

(d.) External breakdown

(e.) None of these

Q(49). Parallel and anti-parallel lines in the DNA helix are connected with which bond?

(a.) Hydrogen bond

(b.) Covalent bond

(c.) Phosphate bond

(d.) Carbon bond

(e.) None of these

Q(50). Sugarcane ratooning compared to pure crop requires?

(a.) More Nitrogen

(b.) Less Nitrogen

(c.) More Phosphorus

(d.) More Potassium

(e.) None of these

Q(51). In Maharashtra, Karnataka, and Andhra Pradesh, grape vines are pruned twice in which months?

(a.) February-March and November-December

(b.) April-May and October-November

(c.) June-July and September-October

(d.) January-February and August-September

(e.) None of these

Q(52). Secretion of milk by glandular secretory tissue of milk animals and their collection in the various systems terminating in its let-down – what is this specific stimuli?

(a.) Lactation

(b.) Secretion

(c.) Homogenization

(d.) Flushing

(e.) None of these

Q(53). Coconut beetle is also called as?

(a.) Red palm weevil

(b.) Coconut mite

(c.) Rhinoceros beetle

(d.) Black-headed caterpillar

(e.) None of these

Q(54). Which of the following seeds is the progeny of breeder seed?

(a.) Breeder seed

(b.) Registered seed

(c.) Foundation seed

(d.) Certified seed

(e.) Nucleus seed

Q(55). Bordeaux mixture contains?

(a.) Sulphur

(b.) Phosphorus

(c.) Calcium

(d.) Copper

(e.) Boron

Q(56). Practice of continuous dropping of seeds at a definite depth, covered with soil and compacted is called as?

(a.) Dibbling

(b.) Broadcasting

(c.) Drilling

(d.) Hill dropping

(e.) Check row planting

Q(57). Milk fever is a metabolic disease in cows soon after calving. It is due to a fall in serum ________ level?

(a.) Calcium

(b.) Zinc

(c.) Boron

(d.) Copper

(e.) Nitrogen

Q(58). What is the floor space per bird in a layer shed (cage system) in commercial layer farming?

(a.) 0.35 sq ft per bird

(b.) 0.85 sq ft per bird

(c.) 1.41 sq ft per bird

(d.) 2.21 sq ft per bird

(e.) 3.05 sq ft per bird

Q(59). Which technique is based on the principle of generation of nitrogen cycle by maintaining a higher C:N ratio through stimulating heterotrophic microbial growth, which assimilates the nitrogenous waste that can be exploited by the cultured species as feed?

(a.) Integrated fish farming

(b.) Composite fish farming

(c.) Biofloc fish farming

(d.) Marine fish farming

(e.) Inland fish farming

Q(60). When hybrid by protoplasmic fusion occurs between two different species/varieties, it is known as?

(a.) Intraspecific hybridization

(b.) Interspecific hybridization

(c.) Intergeneric hybridization

(d.) Intergeneric hybridization

(e.) Somatic hybridization

Answer and Explanations:

Ans.(1). (a.) Rice; Explanation: Oryza sativa is the scientific name for rice, a staple food crop for a large part of the world’s population.

Ans.(2). (b.) 2 Percent; Explanation: As per Pradhan Mantri Fasal Bima Yojana (PMFBY), the uniform premium rate for all Rabi crops is 2%.

Ans.(3). (a.) Allyl propyl disulphide; Explanation: The pungency in onions is due to the presence of Allyl propyl disulphide.

Ans.(4). (a.) Tomato and Ca; Explanation: Blossom end rot is a problem in tomatoes, and it is caused due to calcium deficiency.

Ans.(5). (a.) Reducing the organic content and removing pathogens from the pond; Explanation: Effluent treatment is required for reducing the organic content and removing pathogens from the pond to keep it clean and healthy.

Ans.(6). (a.) 8.5 Percent; Explanation: As per the Prevention of Food Adulteration Act, the Solid Not Fat (SNF) in cow milk is 8.5%.

Ans.(7). (a.) Hemiptera; Explanation: The order Hemiptera is characterised by insects having piercing and sucking mouthparts.

Ans.(8). (a.) Heterosis; Explanation: The superiority of F₁ hybrids in one or more characters over its parents is known as Heterosis.

Ans.(9). (a.) 300 gram; Explanation: The Indian Council of Medical Research (ICMR) recommends an intake of 300 grams of vegetables per day for adults.

Ans.(10). (a.) PM-Kisan; Explanation: Under the PM-Kisan scheme, farmers receive a direct financial support of Rs. 6000 annually from the government.

Ans.(11). (a.) Weeds; Explanation: Pendimethalin is an herbicide used against weeds.

Ans.(12). (b.) Calving; Explanation: The act of parturition or giving birth in cows is called Calving.

Ans.(13). (a.) Ghee; Explanation: RM or Reichert–Meissl Number test is done to check the purity of ghee.

Ans.(14). (a.) Clay > Silt > Sand; Explanation: The water holding capacity of soil decreases in the order Clay > Silt > Sand.

Ans.(15). (b.) Leaves; Explanation: Symptoms of Powdery mildew of pea first appear on the leaves.

Ans.(16). (a.) Cruciferae; Explanation: The family of Mustard is Cruciferae.

Ans.(17). (a.) Scarification; Explanation: The process which softens the seed coat allowing water and gas exchange is called Scarification.

Ans.(18). (a.) Sericin; Explanation: The protein present in silk is called Sericin.

Ans.(19). (a.) Reeling; Explanation: The process of separation of silk from the cocoon is called Reeling.

Ans.(20). (b.) Tropical tasar; Explanation: Antheraea mylitta is a silk moth whose silk is referred to as Tropical tasar.

Ans.(21). (b.) Jute; Explanation: Retting is applied to the jute crop to separate the fibrous part of the plant from the non-fibrous part.

Ans.(22). (a.) Hips; Explanation: The fruit of a rose is known as a hip, which is usually red-to-orange.

Ans.(23). (a.) Colchicine; Explanation: Colchicine is a plant-based chemical used to induce polyploidy.

Ans.(24). (a.) Crisscross; Explanation: Crisscross refers to a method of alternative breeding between two different breeds.

Ans.(25). (a.) Sorosis; Explanation: Pineapple forms a sorosis fruit, where multiple flowers fuse together to form this fruit.

Ans.(26). (c.) Mangla Rai; Explanation: The credit for the success of Krishi Vigyan Kendra (KVK) goes to Mangla Rai, who was instrumental in its formation and implementation.

Ans.(27). (a.) Surati; Explanation: Surati is a breed of buffalo from Gujarat, characterised by sickle-shaped horns.

Ans.(28). (a.) Gypsum; Explanation: Gypsum is used in the reclamation of alkali soils by replacing sodium with calcium.

Ans.(29). (a.) Pig; Explanation: Pigs serve as a key host in the life cycle of the Japanese encephalitis virus.

Ans.(30). (a.) Primary Type; Explanation: A Mandi is a type of primary market where farmers sell their produce directly to consumers or traders.

Ans.(31). (a.) Tobacco; Explanation: Mayer published a paper in 1886 on the disease which he named Mosaic disease of tobacco.

Ans.(32). (a.) Rapidly growing crop that is used to suppress or stop the growth of weed; Explanation: A smother crop is a rapidly growing crop used to suppress or stop the growth of weeds by overshadowing them.

Ans.(33). (a.) Potato; Explanation: Late blight is a disease that primarily affects potato and tomato, caused by Phytophthora infestans.

Ans.(34). (e.) October-November; Explanation: Pre-seasonal planting of sugarcane followed in Maharashtra and Karnataka typically occurs in October-November.

Ans.(35). (d.) CACP; Explanation: The Commission for Agricultural Costs & Prices (CACP) recommends the Minimum Support Price (MSP).

Ans.(36). (a.) Ploughing; Explanation: A mouldboard is a part of a plough used for turning over the soil.

Ans.(37). (a.) Tensiometer; Explanation: Tensiometer is used to measure soil moisture at specific depths.

Ans.(38). (a.) Apis mellifera; Explanation: Apis mellifera is the scientific name for the European honey bee.

Ans.(39). (a.) Herbicide; Explanation: 2,4-D is a widely used herbicide that controls broadleaf weeds.

Ans.(40). (a.) Granite; Explanation: Granite is an igneous rock, not a sedimentary rock.

Ans.(41). (a.) Beta-carotene pigment gets converted to colourless pigment; Explanation: Buffalo milk is whiter because beta-carotene pigment gets converted to a colourless pigment.

Ans.(42). (b.) Scarification; Explanation: Scarification is a mechanical or chemical treatment that breaks or weakens the seed coat to allow water and oxygen to enter.

Ans.(43). (a.) Agrosilvopastoral system; Explanation: Agrosilvopastoral system combines trees, crops and pasture or livestock on the same land unit.

Ans.(44). (a.) Diseases transferred from animals to humans; Explanation: Zoonosis means diseases transferred from animals to humans.

Ans.(45). (a.) Homogenization; Explanation: Homogenization reduces the size and distributes the fat globules evenly throughout the milk.

Ans.(46). (a.) Nitrogen Cycle; Explanation: Anammox is a step of the Nitrogen Cycle, involving anaerobic ammonium oxidation.

Ans.(47). (a.) Rouging; Explanation: Rouging is the removal of off-type plants or weeds from a crop field to maintain genetic purity and quality.

Ans.(48). (a.) Internal breakdown of pomegranate; Explanation: Internal breakdown of pomegranate is a physiological disorder where arils become soft and discoloured but the fruit cannot be identified externally.

Ans.(49). (a.) Hydrogen bond; Explanation: Hydrogen bond connects complementary base pairs in the DNA helix.

Ans.(50). (a.) More Nitrogen; Explanation: Sugarcane ratooning requires more nitrogen than pure crop.

Ans.(51). (b.) April-May and October-November; Explanation: In Maharashtra, Karnataka and Andhra Pradesh, grape vines are pruned twice in April-May and October-November.

Ans.(52). (a.) Lactation; Explanation: Lactation is the process of milk production and secretion by the mammary glands of female mammals.

Ans.(53). (c.) Rhinoceros beetle; Explanation: Rhinoceros beetle is also known as coconut beetle or Asian palm weevil.

Ans.(54). (c.) Foundation seed; Explanation: Foundation seed is the progeny of breeder seed and has high genetic purity.

Ans.(55). (d.) Copper; Explanation: Copper is one of the components of Bordeaux mixture, which consists of copper sulphate, lime and water.

Ans.(56). (c.) Drilling; Explanation: Drilling consists of dropping seeds in furrow lines in a continuous stream and covering them with soil.

Ans.(57). (a.) Calcium; Explanation: Milk fever occurs due to a sudden fall in blood calcium level soon after calving.

Ans.(58). (b.) 0.85 sq ft per bird; Explanation: The recommended floor space per bird in a layer shed under cage system is 0.85 sq ft per bird.

Ans.(59). (c.) Biofloc fish farming; Explanation: Biofloc fish farming maintains a higher C:N ratio and stimulates heterotrophic microbial growth to assimilate nitrogenous waste.

Ans.(60). (e.) Somatic hybridization; Explanation: Somatic hybridization occurs when hybridization is achieved by protoplasmic fusion between two different species or varieties.