AEDO Stage-1 Preliminary Exam Mock Test

AEDO Stage-1 Preliminary Exam Mock Test

SectionSubjectQuestionsMarks
Section AGeneral Knowledge & Current Affairs2525
Section BAgriculture (Basic Concepts)4040
Section CReasoning & Analytical Ability2020
Section DBasic Mathematics1515

AEDO Mock Test – Real PYQ Difficulty (Part 1)

Section A – Agriculture (Questions 1–20)

1. In soil science, the term cation exchange capacity (CEC) primarily indicates:
A. Soil texture
B. Soil ability to retain and exchange nutrient cations
C. Soil water holding capacity
D. Soil organic carbon content

2. Which of the following crops is most tolerant to waterlogging conditions?
A. Wheat
B. Rice
C. Chickpea
D. Mustard

3. The main function of phosphorus in plants is:
A. Chlorophyll formation
B. Root development and energy transfer
C. Stomatal regulation
D. Protein degradation

4. The causal organism of rust disease in wheat belongs to which group?
A. Bacteria
B. Virus
C. Fungi
D. Nematodes

5. In crop production, relay cropping refers to:
A. Growing crops alternately every year
B. Growing crops simultaneously without row arrangement
C. Sowing the next crop before harvesting the standing crop
D. Growing crops in strips across the slope

6. The major nitrogen fixing bacteria associated with leguminous crops is:
A. Azotobacter
B. Rhizobium
C. Nitrosomonas
D. Clostridium

7. Which soil order is commonly associated with tropical regions and high rainfall areas?
A. Aridisols
B. Mollisols
C. Oxisols
D. Vertisols

8. The Green Revolution in India was mainly successful due to:
A. Expansion of cultivated area
B. Introduction of HYV seeds and irrigation
C. Reduction in fertilizer use
D. Traditional farming practices

9. In agronomy, lodging of crops refers to:
A. Drying of plants
B. Bending or falling of plants due to wind or rain
C. Plant disease caused by fungi
D. Soil erosion around plant roots

10. Which of the following is not a micronutrient for plants?
A. Zinc
B. Iron
C. Boron
D. Nitrogen

11. The critical stage of irrigation in wheat is:
A. Crown root initiation stage
B. Flowering stage
C. Seedling stage
D. Grain maturity stage

12. The practice of covering soil with crop residues to conserve moisture is called:
A. Intercropping
B. Mulching
C. Strip cropping
D. Terracing

13. In plant breeding, heterosis refers to:
A. Loss of vigor in hybrid plants
B. Increased vigor in hybrid offspring
C. Mutation in plants
D. Natural selection

14. Which of the following crops is primarily a Rabi crop in India?
A. Rice
B. Maize
C. Wheat
D. Cotton

15. The main objective of crop rotation is to:
A. Increase pest population
B. Improve soil fertility and break pest cycles
C. Increase irrigation requirement
D. Reduce crop yield

16. Which plant hormone is primarily responsible for cell elongation and apical dominance?
A. Auxin
B. Cytokinin
C. Ethylene
D. Abscisic acid

17. The process of soil formation is known as:
A. Pedology
B. Pedogenesis
C. Soil taxonomy
D. Soil classification

18. Which irrigation method is considered most efficient in water use efficiency?
A. Flood irrigation
B. Furrow irrigation
C. Drip irrigation
D. Basin irrigation

19. The scientific name of wheat is:
A. Oryza sativa
B. Zea mays
C. Triticum aestivum
D. Hordeum vulgare

20. Which nutrient deficiency causes yellowing of older leaves first in plants?
A. Nitrogen
B. Iron
C. Calcium
D. Boron

Part 2 – Agriculture Section (Questions 21–40)

21. The major component of soil organic matter responsible for improving soil structure and nutrient holding capacity is:
A. Humus
B. Cellulose
C. Lignin
D. Starch

22. Which of the following is the primary vector for transmission of plant viruses in many crops?
A. Beetles
B. Aphids
C. Grasshoppers
D. Caterpillars

23. The Indian Council of Agricultural Research (ICAR) was originally established in:
A. 1929
B. 1935
C. 1947
D. 1952

24. The optimum temperature range for most crop photosynthesis is approximately:
A. 5–10°C
B. 10–15°C
C. 20–30°C
D. 35–45°C

25. Which of the following crops is considered a C4 plant?
A. Wheat
B. Rice
C. Maize
D. Potato

26. In soil science, leaching refers to:
A. Loss of nutrients due to evaporation
B. Downward movement of soluble nutrients with water
C. Conversion of organic matter into humus
D. Soil erosion caused by wind

27. The scientific name of rice is:
A. Oryza sativa
B. Triticum aestivum
C. Sorghum bicolor
D. Zea mays

28. Which nutrient is most closely associated with stomatal regulation and drought tolerance in plants?
A. Nitrogen
B. Potassium
C. Phosphorus
D. Magnesium

29. The causal organism of bacterial blight of rice is:
A. Xanthomonas oryzae
B. Alternaria solani
C. Fusarium oxysporum
D. Puccinia graminis

30. In irrigation management, duty of water refers to:
A. Depth of water required by crops
B. Area irrigated by a unit discharge of water
C. Water lost due to seepage
D. Water stored in reservoirs

31. The term “HYV seeds” introduced during the Green Revolution refers to:
A. High Yielding Varieties
B. Hybrid Yielding Varieties
C. High Yielding Vegetables
D. Hybrid Yielding Vegetables

32. Which cropping system is most effective in reducing soil erosion on sloping land?
A. Monocropping
B. Strip cropping
C. Mixed cropping
D. Relay cropping

33. The process by which plants lose water in the form of vapor is called:
A. Respiration
B. Transpiration
C. Evaporation
D. Diffusion

34. Which nutrient deficiency causes interveinal chlorosis in young leaves?
A. Nitrogen
B. Iron
C. Phosphorus
D. Sulfur

35. The main objective of integrated pest management (IPM) is to:
A. Eliminate all insects
B. Minimize pest damage using combined methods
C. Use only chemical pesticides
D. Use only biological control agents

36. The crop most commonly associated with nitrogen fixation in crop rotations is:
A. Wheat
B. Rice
C. Soybean
D. Barley

37. Which of the following is considered a horticultural crop?
A. Wheat
B. Rice
C. Mango
D. Maize

38. The economic threshold level (ETL) in pest management refers to:
A. Maximum pest population
B. Pest population at which control measures should be initiated
C. Minimum pest population in a field
D. Total pest population in a crop

39. The scientific name of cotton commonly cultivated in India is:
A. Gossypium hirsutum
B. Brassica juncea
C. Zea mays
D. Oryza sativa

40. The practice of growing two or more crops simultaneously on the same field without a definite row arrangement is called:
A. Intercropping
B. Mixed cropping
C. Crop rotation
D. Relay cropping

Part 3 – Agriculture Section (Questions 41–60)

41. The primary source of nitrogen fertilizer in India is:
A. Ammonium sulfate
B. Urea
C. Calcium nitrate
D. Sodium nitrate

42. The critical limit of soil pH for most crops beyond which nutrient availability decreases significantly is:
A. Below 4.5
B. Around 6.5–7.5
C. Above 8.5
D. Around 5.0

43. Which of the following fertilizers supplies both nitrogen and phosphorus?
A. Urea
B. Single superphosphate
C. Diammonium phosphate (DAP)
D. Muriate of potash

44. In plant breeding, the process of selecting superior plants from a mixed population is known as:
A. Pure line selection
B. Mass selection
C. Hybridization
D. Mutation breeding

45. The main aim of mutation breeding is to:
A. Produce hybrids
B. Create genetic variability
C. Increase seed size
D. Improve soil fertility

46. The crop most sensitive to salinity among the following is:
A. Barley
B. Cotton
C. Rice
D. Chickpea

47. The process of adding lime to acidic soil is called:
A. Liming
B. Neutralization
C. Calcification
D. Soil reclamation

48. The main objective of green manuring is to:
A. Control weeds
B. Increase soil organic matter and nitrogen
C. Improve irrigation efficiency
D. Reduce soil pH

49. Which of the following weeds is commonly found in wheat fields?
A. Cyperus rotundus
B. Phalaris minor
C. Eichhornia crassipes
D. Parthenium hysterophorus

50. The most important irrigation stage for rice is:
A. Tillering stage
B. Flowering stage
C. Grain filling stage
D. Seedling stage

51. In soil science, field capacity refers to:
A. Maximum water soil can hold after drainage
B. Total rainfall received in a field
C. Water used by plants during growth
D. Soil water lost through evaporation

52. Which of the following crops is most tolerant to drought conditions?
A. Sorghum
B. Rice
C. Sugarcane
D. Banana

53. The scientific name of maize is:
A. Zea mays
B. Oryza sativa
C. Triticum aestivum
D. Sorghum bicolor

54. Which of the following is a biofertilizer used for nitrogen fixation in non-leguminous crops?
A. Rhizobium
B. Azotobacter
C. Nitrobacter
D. Bacillus subtilis

55. The law of diminishing returns in agriculture states that:
A. Output always increases with input
B. Output increases at a decreasing rate after a certain level of input
C. Output decreases with increased input
D. Output remains constant

56. The practice of growing crops across the slope of land to reduce soil erosion is called:
A. Strip cropping
B. Contour farming
C. Mixed cropping
D. Relay cropping

57. Which plant hormone is responsible for breaking seed dormancy?
A. Auxin
B. Gibberellin
C. Ethylene
D. Abscisic acid

58. The most widely used method of weed control in modern agriculture is:
A. Mechanical control
B. Biological control
C. Chemical control
D. Cultural control

59. The scientific name of mustard is:
A. Brassica juncea
B. Oryza sativa
C. Triticum aestivum
D. Zea mays

60. The term “cropping intensity” refers to:
A. Number of crops grown per year on the same land
B. Total irrigation used in farming
C. Total fertilizer applied in a season
D. Total yield obtained from crops

Part 4 – Questions 61–80

61. Agricultural extension primarily aims to:
A. Increase agricultural taxes
B. Transfer improved agricultural technologies to farmers
C. Reduce crop production
D. Promote traditional farming only

62. The Training and Visit (T&V) system of agricultural extension in India was introduced with the support of:
A. FAO
B. World Bank
C. IMF
D. IFAD

63. The minimum support price (MSP) for major crops in India is recommended by:
A. Food Corporation of India
B. Commission for Agricultural Costs and Prices
C. NABARD
D. Reserve Bank of India

64. The process of adoption of new technology by farmers usually follows which sequence?
A. Awareness → Interest → Evaluation → Trial → Adoption
B. Interest → Awareness → Adoption → Trial
C. Trial → Awareness → Adoption → Evaluation
D. Awareness → Adoption → Trial → Interest

65. The main objective of agricultural cooperatives is to:
A. Increase market monopoly
B. Provide services and support to farmers collectively
C. Reduce farm productivity
D. Eliminate government intervention

66. The gestation period of a cow is approximately:
A. 210 days
B. 240 days
C. 280 days
D. 300 days

67. Which breed of cattle is well known for high milk production in India?
A. Gir
B. Sahiwal
C. Holstein Friesian
D. Red Sindhi

68. In poultry farming, broiler chickens are mainly raised for:
A. Egg production
B. Meat production
C. Feather production
D. Breeding purposes

69. The practice of cultivating fruits, vegetables, flowers, and ornamental plants is known as:
A. Agronomy
B. Horticulture
C. Silviculture
D. Apiculture

70. Which fruit crop is commonly propagated by grafting?
A. Banana
B. Mango
C. Papaya
D. Pineapple

71. The scientific name of potato is:
A. Solanum tuberosum
B. Lycopersicon esculentum
C. Capsicum annuum
D. Brassica oleracea

72. Which vegetable crop belongs to the family Solanaceae?
A. Onion
B. Tomato
C. Cabbage
D. Carrot

73. The practice of removing excess flowers or fruits to improve quality is called:
A. Pruning
B. Thinning
C. Training
D. Pinching

74. The economic principle stating that farmers aim to maximize profit with available resources is known as:
A. Law of demand
B. Principle of profit maximization
C. Law of supply
D. Law of substitution

75. The term “marketable surplus” refers to:
A. Total crop production
B. Crop retained for family consumption
C. Quantity of produce available for sale after meeting farmer needs
D. Total quantity sold in market

76. The National Bank for Agriculture and Rural Development (NABARD) was established in:
A. 1975
B. 1982
C. 1991
D. 2000

77. The operation flood programme in India was mainly related to:
A. Milk production
B. Wheat production
C. Rice production
D. Fish production

78. The scientific name of sugarcane is:
A. Saccharum officinarum
B. Zea mays
C. Oryza sativa
D. Triticum aestivum

79. The practice of keeping bees for honey production is called:
A. Sericulture
B. Apiculture
C. Pisciculture
D. Vermiculture

80. The main objective of agricultural marketing is to:
A. Reduce crop production
B. Ensure efficient movement of agricultural goods from producers to consumers
C. Eliminate farmers from markets
D. Increase storage losses

Part 5 – Questions 81–100

81. The Green Revolution in India was primarily aimed at increasing the production of:
A. Pulses
B. Wheat and rice
C. Cotton
D. Oilseeds

82. The major irrigation project on the Godavari river in India is:
A. Hirakud Dam
B. Polavaram Project
C. Sardar Sarovar Dam
D. Nagarjuna Sagar Dam

83. Which of the following is a leguminous crop?
A. Maize
B. Soybean
C. Wheat
D. Rice

84. The scientific name of chickpea (gram) is:
A. Cicer arietinum
B. Lens culinaris
C. Vigna radiata
D. Phaseolus vulgaris

85. Which one of the following is a biological method of pest control?
A. Spraying insecticides
B. Using predatory insects to control pests
C. Crop rotation
D. Flooding fields

86. In reasoning, the next number in the series 2, 6, 12, 20, 30, … is:
A. 40
B. 42
C. 44
D. 45

87. If 1 quintal = 100 kg, how many quintals are there in 2.5 tons?
A. 25
B. 20
C. 15
D. 10

88. A farmer produces 500 kg of wheat on 2 hectares of land. What is the yield per hectare?
A. 200 kg
B. 250 kg
C. 300 kg
D. 350 kg

89. If the selling price of a crop is ₹48/kg and the cost price is ₹40/kg, what is the profit percentage?
A. 15%
B. 18%
C. 20%
D. 25%

90. Which of the following crops is a Kharif crop in India?
A. Wheat
B. Maize
C. Barley
D. Gram

91. The main component of fertilizer labeled 10:26:26 is:
A. Nitrogen
B. Phosphorus
C. Potassium
D. Calcium

92. Which one of the following pests attacks cotton primarily?
A. Stem borer
B. Aphids
C. Bollworm
D. Mealy bug

93. The scientific name of tomato is:
A. Solanum lycopersicum
B. Solanum tuberosum
C. Capsicum annuum
D. Lycopersicon esculentum

94. The main greenhouse gas responsible for global warming is:
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen

95. In agricultural marketing, APMC stands for:
A. Agricultural Produce Market Committee
B. Agriculture Price Monitoring Cell
C. Association of Producers & Marketers of Crops
D. Agricultural Product Management Council

96. A farmer mixes 3 kg of fertilizer A (₹50/kg) with 2 kg of fertilizer B (₹60/kg). The average cost per kg of mixture is:
A. ₹54
B. ₹55
C. ₹56
D. ₹57

97. The next term in the series 5, 10, 20, 40, … is:
A. 60
B. 70
C. 80
D. 90

98. Which of the following is an example of intercropping?
A. Wheat followed by gram next season
B. Maize with groundnut sown simultaneously
C. Cotton grown alone
D. Rice transplanted alone

99. A farmer wants to irrigate 10 hectares of land. The irrigation system delivers 2 liters/sec per hectare. How many liters are required in 5 hours?
A. 36,000 L
B. 72,000 L
C. 120,000 L
D. 180,000 L

100. The scientific name of sugarcane is:
A. Saccharum officinarum
B. Zea mays
C. Oryza sativa
D. Triticum aestivum

Q. NoAnswerQ. NoAnswerQ. NoAnswerQ. NoAnswer
1B26B51A76B
2B27A52A77A
3B28B53A78A
4C29A54B79B
5C30B55B80B
6B31A56B81B
7C32B57B82B
8B33B58C83B
9B34B59A84A
10D35B60A85B
11A36C61B86B
12B37C62B87A
13B38B63B88B
14C39A64A89C
15B40B65B90B
16A41B66C91B
17B42C67C92C
18C43C68B93A
19C44B69B94B
20A45B70B95A
21A46D71A96B
22B47A72B97C
23A48B73B98B
24C49B74B99C
25C50A75C100A

Disclaimer
This mock test is designed for educational purposes only. Questions are original and inspired by previous AEDO exam patterns. Results from this test do not guarantee success in the actual exam.