AGRICULTURE- PAGE 3
Agriculture MCQs- Page 3
1. Which one of the following is the objective of the Commission for Agricultural Costs and Prices (CACP) ?
A) To stabilize agricultural prices
B) To ensure meaningful real income levels to the farmers
C) To protect the interest of the consumers by providing essential agricultural commodities at reasonable rate through PDS
D) All of these
Ans: B
2. Pradhan Mantri fasal Bima Yogana (PMFBY) was launched in-
A) 2015 B) 2016 C) 2017 D) 2018
Ans: B
3. The National Agricultural Higher Education Project (NAHEP) was launched by ICAR, New Delhi through the support of-
A) World Bank
B) Govt of India
C) World Bank and Government of India
D) Government of India and State Govt.
Ans: C
4. The first Krishi Vigyan Kendra, on pilot basis, was established in India at Pondicherry in the year
A) 1966 B) 1970 C) 1974 D) 1978
Ans: C
5. Visual aid for transfer of technology includes:
A) Audio teleconference B) e - mail
C) Cultural programme D) All of these
Ans: B
6. Extension Education is related where
A) Audience is more or less homogeneous
B) Teaching is mainly vertical and curriculum centered
C) Teaching is mainly horizontal and need based
D) Pre- planned and pre- decided
Ans: C
7. Method demonstration does not include-
A) Seed treatment with rhizobium culture
B) Use of improved variety seed
C) Taking soil sample for its testing
D) Budding in fruit plants
Ans: B
8. The three characteristics of extension are -
A) Teaching- Informal- Felxible
B) Teaching - Formal- Voluntary
C) Teaching- Curriculum based- Compulsory
D) Teaching- Cooperation- Formal
Ans: A
A) To stabilize agricultural prices
B) To ensure meaningful real income levels to the farmers
C) To protect the interest of the consumers by providing essential agricultural commodities at reasonable rate through PDS
D) All of these
Ans: B
2. Pradhan Mantri fasal Bima Yogana (PMFBY) was launched in-
A) 2015 B) 2016 C) 2017 D) 2018
Ans: B
3. The National Agricultural Higher Education Project (NAHEP) was launched by ICAR, New Delhi through the support of-
A) World Bank
B) Govt of India
C) World Bank and Government of India
D) Government of India and State Govt.
Ans: C
4. The first Krishi Vigyan Kendra, on pilot basis, was established in India at Pondicherry in the year
A) 1966 B) 1970 C) 1974 D) 1978
Ans: C
5. Visual aid for transfer of technology includes:
A) Audio teleconference B) e - mail
C) Cultural programme D) All of these
Ans: B
6. Extension Education is related where
A) Audience is more or less homogeneous
B) Teaching is mainly vertical and curriculum centered
C) Teaching is mainly horizontal and need based
D) Pre- planned and pre- decided
Ans: C
7. Method demonstration does not include-
A) Seed treatment with rhizobium culture
B) Use of improved variety seed
C) Taking soil sample for its testing
D) Budding in fruit plants
Ans: B
8. The three characteristics of extension are -
A) Teaching- Informal- Felxible
B) Teaching - Formal- Voluntary
C) Teaching- Curriculum based- Compulsory
D) Teaching- Cooperation- Formal
Ans: A
9. The major difference between the innovation decision process and the diffusion process is that-
A) Innovation decision making takes place within the mind of an individual.
B) Innovation decision- making takes place with a group.
C) Innovation decision is adopted after rejection.
D) Innovation decision is a collection of learning experience.
Ans: A
10. The carburetar is main part of Engine-
A) Diesel Engire B) Steam Engine C) Petrol Engine D) Gas Engine
Ans: C
11. Which weir is used to measure high discharge?
A) Rectangular weir B) Trapezoidal weir C) Triangular weir D) None of these
Ans: A
12. Water can be measured on volume basis if it is…
A) At rest B) In motion C) At rest and In motion D) None of these
Ans: A
13. Open impeller is made by?
A) Mild steel B) Cast iron C) Forged steel D) Stainless steel
Ans: C
14. In storage major pest of rice is
A) Cercyra Cepnolenica B) Tribolium castaneum C) Callosobruhus sp D) Systole albipennis
Ans: A
15. Pectinophora gossypilla is a pest of-
A) Cumin
B) Brinjal
C) Cotton
D) Spinach
Ans: C
16. Heterorhabditis sp. Is used for control of
A) Rice stem bore B) Pea leaf miner
C) White grub D) Coriander aphid
Ans: C
17. Diamond back moth is a pest of
A) Cotton B) Cabbage C) Rice D) Soybean
Ans: B
18. Melanagromyza obtusa is a pest of
A) Red gram B) Tomato C) Potato D) Mustard
Ans: A
19. Trichogramma chilonis parasitoid used for the control of
A) Bollworm of cotton B) White fly C) Aphid D) Thrips
Ans: A
20. Basillus thuringiensis is used for the control of
A) Diamond backmoth B) Fruit sucking moth C) Thrips D) Aphids
Ans: A
21. Yellow and Witches broom symptoms caused by
A) Viroid B) Fungus C) phytoplasma D) Bacteria
Ans: C
22. Rice tungro disease is caused by
A) A mixture of spherical and flexous viruses.
B) A bacilliform virus alone.
C) A mixture of bacilliform and flexous virus.
D) A mixture of spherical and bacilliform virus.
Ans: D
23. An example of autoecious rust is
A) Stem rust of wheat B) Bajra rust
C) Apple rust D) Linseed rust
Ans: D
24. Aflatoxins are produced by
A) Alternaria burnsii B) Fusarium graminearum
C) Cladosporium spp. D) Aspergillus flaxus
Ans: D
25. Sclerotia are formed in which fungus
A) Pythium B) Claviceps
C) Physoderma D) Rhizopus
Ans: B
26. Which fungicide is used for control of downy mildew.
A) Karathane B) Ridomil MZ
C) Thiram D) Captan
Ans: B
27. Which type of nozzle is most commonly used for herbicide application?
A) Flood jet
B) Flat fan
C) Solid cone
D) Centrifugal type
Ans: B
28. Which of the following machine is not good for zero- till planting of crop under surface residue condition?
A) Turbo happy seeder B) Rotary disc drill
C) Double disc drill D) Tyne opener zero till drill
Ans: B
29. Drainage of 1 ha cm in 24 hours equals drainage of-
A) 1.157 lps B) 0.117 lps C) 2.7 lps D) 2 lps
Ans: A
30. The ratio between area of crop irrigated and quantity of water applied crop is termed as?
A) Duty B) Delta C) Base period D) Irrigation quotient
Ans: B
31. The wind velocity is measured by
A) Current meter B) Hydrometer C) Anemometer D) None of these
Ans: C
32. Which harrow is also called "bakhar"
A) Disc harow B) Spike tooth harow
C) Spring tooth D) Blade harrow
Ans: D
33. Which one is NOT the component of drip irrigation ?
(a) Riser (b) Fertilizer unit (c) Sand filter (d) Emitters
Ans: A
34. Triticale has been developed by crossing
(a) Wheat and Barley (b) Wheat and Phalaris (c) Barley and Rye (d) Wheat and Rye
Ans: D
35. Silica percentage in granite acidic rocks ranges between
(a) 20-30% (b) 40-50% (c) 60-80% (d) 80-90%
Ans: C
36. “Grow out test” is conducted to test the
(a) Physical purity of seeds (b) Genetic purity of seed (c) Germination percentage of seeds (d) Boldness of seed
Ans: B
37. Which one is NOT the basic form of cloud ?
(a) Nimbus (b) Stratus (c) Cirrus (d) Cumulus
Ans: A
38. Orange certificate of seed is issued by
(a) OECD (b) AOSA (c) ISTA (d) UPOV
Ans: C
39. Formation of seeds without fertilization is known as
(a) Apospory (b) Apomixis (c) Diolospory (d) Protomixis
Ans: B
40. Which one of the following is a climacteric type of fruit ?
(a) Litchi (b) Banana (c) Orange (d) Grapes Ans: B
41. Which of the following is unique feature of plant parasitic nematodes ?
(a) Oesophagus (b) Hollow spear or stylet (c) Spicule (d) Both (a) and (b)
Ans: D
42. For seed production in India, which generation system is followed ?
(a) Five (b) Four (c) Three (d) Two
Ans: C
43. CO2 uptake/intake during night and release during day time is a feature of
(a) Crassulacean Acid Metabolism (b) Photophosphorylation (c) Hatch & Slack cycle (d) Calvin cycleAns: A
44. Fastidious bacteria mainly remain confined to
(a) Epidermis (b) Vascular bundles (c) Cortex (d) Parenchymatous tissue
Ans: B
45. The pathogens that derive their nutrition from the living organisms are called as
(a) Biotroph (b) Necrotroph (c) Saprotroph (d) Hemibiotroph
Ans: A
46. Hybrid rice seed is produced by
(a) One line system (b) Two line system (c) Three line system (d) Four line system
Ans: C
47. Early blight of potato is caused by
(a) Alternaria alternata (b) Fusarium solani (c) Rhizoctonia solani (d) Alternaria solani
Ans: D
48. The fall in the photosynthetic yield beyond red region (more than 680 nm) is called as
(a) Phosphorescence (b) Emerson’s effect or red drop (c) Quantum yield (d) Florescence
Ans: B
49. Bacillus thuringiensis is a
(a) gram negative bacteria (b) gram positive bacteria (c) negative gram bacteria (d) positive gram bacteria
Ans: B
50. The scientific name of silk worm is
(a) Phytomyza atricornis (b) Agromyza phaseoli (c) Antheraea paphia (d) Bombyx mori
Ans: D
A) Innovation decision making takes place within the mind of an individual.
B) Innovation decision- making takes place with a group.
C) Innovation decision is adopted after rejection.
D) Innovation decision is a collection of learning experience.
Ans: A
10. The carburetar is main part of Engine-
A) Diesel Engire B) Steam Engine C) Petrol Engine D) Gas Engine
Ans: C
11. Which weir is used to measure high discharge?
A) Rectangular weir B) Trapezoidal weir C) Triangular weir D) None of these
Ans: A
12. Water can be measured on volume basis if it is…
A) At rest B) In motion C) At rest and In motion D) None of these
Ans: A
13. Open impeller is made by?
A) Mild steel B) Cast iron C) Forged steel D) Stainless steel
Ans: C
14. In storage major pest of rice is
A) Cercyra Cepnolenica B) Tribolium castaneum C) Callosobruhus sp D) Systole albipennis
Ans: A
15. Pectinophora gossypilla is a pest of-
A) Cumin
B) Brinjal
C) Cotton
D) Spinach
Ans: C
16. Heterorhabditis sp. Is used for control of
A) Rice stem bore B) Pea leaf miner
C) White grub D) Coriander aphid
Ans: C
17. Diamond back moth is a pest of
A) Cotton B) Cabbage C) Rice D) Soybean
Ans: B
18. Melanagromyza obtusa is a pest of
A) Red gram B) Tomato C) Potato D) Mustard
Ans: A
19. Trichogramma chilonis parasitoid used for the control of
A) Bollworm of cotton B) White fly C) Aphid D) Thrips
Ans: A
20. Basillus thuringiensis is used for the control of
A) Diamond backmoth B) Fruit sucking moth C) Thrips D) Aphids
Ans: A
21. Yellow and Witches broom symptoms caused by
A) Viroid B) Fungus C) phytoplasma D) Bacteria
Ans: C
22. Rice tungro disease is caused by
A) A mixture of spherical and flexous viruses.
B) A bacilliform virus alone.
C) A mixture of bacilliform and flexous virus.
D) A mixture of spherical and bacilliform virus.
Ans: D
23. An example of autoecious rust is
A) Stem rust of wheat B) Bajra rust
C) Apple rust D) Linseed rust
Ans: D
24. Aflatoxins are produced by
A) Alternaria burnsii B) Fusarium graminearum
C) Cladosporium spp. D) Aspergillus flaxus
Ans: D
25. Sclerotia are formed in which fungus
A) Pythium B) Claviceps
C) Physoderma D) Rhizopus
Ans: B
26. Which fungicide is used for control of downy mildew.
A) Karathane B) Ridomil MZ
C) Thiram D) Captan
Ans: B
27. Which type of nozzle is most commonly used for herbicide application?
A) Flood jet
B) Flat fan
C) Solid cone
D) Centrifugal type
Ans: B
28. Which of the following machine is not good for zero- till planting of crop under surface residue condition?
A) Turbo happy seeder B) Rotary disc drill
C) Double disc drill D) Tyne opener zero till drill
Ans: B
29. Drainage of 1 ha cm in 24 hours equals drainage of-
A) 1.157 lps B) 0.117 lps C) 2.7 lps D) 2 lps
Ans: A
30. The ratio between area of crop irrigated and quantity of water applied crop is termed as?
A) Duty B) Delta C) Base period D) Irrigation quotient
Ans: B
31. The wind velocity is measured by
A) Current meter B) Hydrometer C) Anemometer D) None of these
Ans: C
32. Which harrow is also called "bakhar"
A) Disc harow B) Spike tooth harow
C) Spring tooth D) Blade harrow
Ans: D
33. Which one is NOT the component of drip irrigation ?
(a) Riser (b) Fertilizer unit (c) Sand filter (d) Emitters
Ans: A
34. Triticale has been developed by crossing
(a) Wheat and Barley (b) Wheat and Phalaris (c) Barley and Rye (d) Wheat and Rye
Ans: D
35. Silica percentage in granite acidic rocks ranges between
(a) 20-30% (b) 40-50% (c) 60-80% (d) 80-90%
Ans: C
36. “Grow out test” is conducted to test the
(a) Physical purity of seeds (b) Genetic purity of seed (c) Germination percentage of seeds (d) Boldness of seed
Ans: B
37. Which one is NOT the basic form of cloud ?
(a) Nimbus (b) Stratus (c) Cirrus (d) Cumulus
Ans: A
38. Orange certificate of seed is issued by
(a) OECD (b) AOSA (c) ISTA (d) UPOV
Ans: C
39. Formation of seeds without fertilization is known as
(a) Apospory (b) Apomixis (c) Diolospory (d) Protomixis
Ans: B
40. Which one of the following is a climacteric type of fruit ?
(a) Litchi (b) Banana (c) Orange (d) Grapes Ans: B
41. Which of the following is unique feature of plant parasitic nematodes ?
(a) Oesophagus (b) Hollow spear or stylet (c) Spicule (d) Both (a) and (b)
Ans: D
42. For seed production in India, which generation system is followed ?
(a) Five (b) Four (c) Three (d) Two
Ans: C
43. CO2 uptake/intake during night and release during day time is a feature of
(a) Crassulacean Acid Metabolism (b) Photophosphorylation (c) Hatch & Slack cycle (d) Calvin cycleAns: A
44. Fastidious bacteria mainly remain confined to
(a) Epidermis (b) Vascular bundles (c) Cortex (d) Parenchymatous tissue
Ans: B
45. The pathogens that derive their nutrition from the living organisms are called as
(a) Biotroph (b) Necrotroph (c) Saprotroph (d) Hemibiotroph
Ans: A
46. Hybrid rice seed is produced by
(a) One line system (b) Two line system (c) Three line system (d) Four line system
Ans: C
47. Early blight of potato is caused by
(a) Alternaria alternata (b) Fusarium solani (c) Rhizoctonia solani (d) Alternaria solani
Ans: D
48. The fall in the photosynthetic yield beyond red region (more than 680 nm) is called as
(a) Phosphorescence (b) Emerson’s effect or red drop (c) Quantum yield (d) Florescence
Ans: B
49. Bacillus thuringiensis is a
(a) gram negative bacteria (b) gram positive bacteria (c) negative gram bacteria (d) positive gram bacteria
Ans: B
50. The scientific name of silk worm is
(a) Phytomyza atricornis (b) Agromyza phaseoli (c) Antheraea paphia (d) Bombyx mori
Ans: D
51. Which one of the following manures contain highest N percentage ?
(a) Vermicompost (b) Oil cakes (c) Green manure (d) Poultry manure
Ans: B
52. Aflatoxin is produced by
(a) Mucor (b) Yeast (c) Aspergillus (d) Rhizobium
Ans: C
53. Blood of insect is called
(a) Haemolymph (b) Haemoglobin (c) Lymph (d) Albumin
Ans: A
54. Plant diseases caused by fungi belonging to peronosporales are called
(a) Smut (b) Rust (c) Downey mildew (d) Powdery mildew
Ans: C
55. Citrus canker disease is caused by
(a) Pseudomonas (b) Xanthomonas (c) Erwinia (d) Agrobacterium
Ans: B
56. Insect growth occurs by
(a) Regeneration (b) Modification (c) Transformation (d) Moulting
Ans: D
57. What is the status of generation time during the exponential phase of bacterial growth ?
(a) Constant (b) Increases (c) Decreases (d) Variable
Ans: A
58. Post-harvest internal browning (discolouration) is a common symptom of chilling injury in
(a) Apple (b) Citrus (c) Pineapple (d) Banana
Ans: C
59. In cabbage, cauliflower and broccoli, hollow stems with darkened interior are caused by
(a) Magnesium deficiency (b) Boron deficiency (c) Calcium deficiency (d) Chilling temperature
Ans: B
60. How many net ATP molecules are produced during glycolysis cycle ?
(a) 38 (b) 4 (c) 2 (d) 6
Ans: C
61. DDT was discovered by
(a) Zeidler (b) Paul Muller (c) Faraday (d) Van der Linden
Ans: B
62. Which growth index represent the photosynthesis rate in plants ?
(a) LAI (b) NAR (c) CGR (d) RGR
Ans: B
63. Let ‘r’ be the correlation co-efficient between X and Y. Then correlation co-efficient between X/3 and 3Y is
(a) 1 (b) 3r (c) r/3 (d) r
Ans: D
64. The grassy weeds escape the toxicity of 2, 4-D herbicide by the process of
(a) Differential translocation (b) Conjugation (c) Differential protoplasmic resistance (d) Metabolism
Ans: B
65. Lipaphis erysimi is an important pest of which crop ?
(a) Wheat (b) Maize (c) Mustard (d) Rose
Ans: C
66. The Seed Act was passed in the year
(a) 1966 (b) 1970 (c) 1985 (d) 1990
Ans: A
67. In which year the first KVK was established by ICAR ?
(a) 1970 (b) 1974 (c) 1980 (d) 1984
Ans: B
68. The biological oxidation of ammonium into nitrate is called
(a) Aminization (b) Ammonification (c) Nitrification (d) Denitrification
Ans: C
69. Productivity of sugarcane in South India is more than in North India due to
(a) Longer crop duration (b) More irrigation facilities
(c) Lesser biotic stresses (d) Better weed control
Ans: A
70. Hygroscopic water in soil is held at a pressure of
(a) – 0.1 to 0.3 bar (b) 0.1 to 2 bar (c) 2 to 10 bar (d) less than –31 bar
Ans: D
71. What additional quantity of fertilizers are applied to ratoon over the planted sugarcane crop ?
(a) 15% – 20% (b) 25% – 30% (c) 35% – 50% (d) 50% – 75%
Ans: B
72. Deficiency symptoms of Zn first appear on
(a) Middle leaves (b) Younger leaves (c) Oldest leaves (d) Apical leaves
Ans: A
73. If the arithmetic and geometric mean of two numbers are 6.5 and 6.0, respectively, then those two numbers are
(a) 8, 5 (b) 7, 6 (c) 9, 5 (d) 4, 9
Ans: D
74. The strata of atmosphere just above the earth surface is called as
(a) Stratosphere (b) Mesosphere (c) Troposphere (d) Thermosphere
Ans: C
75. Retting process of jute is
(a) Biological (b) Biochemical (c) Physical (d) Physiological
Ans: C
76. In which country, International Rice Gene Bank is situated ?
(a) India (b) Philippines (c) China (d) Japan
Ans: B
77. 5-Glucose-6-phosphate inhibits which of the following enzymes ?
(a) Hexokinase (b) Glucokinase (c) Fructose-1,6-biphosphatase (d) Phosphorylase kinase
Ans: A
78. In India, the new Insecticides Rules came into force in the year
(a) 1965 (b) 1968 (c) 1970 (d) 1971
Ans: D
79. Which of the insect order contains largest number of species ?
(a) Hymenoptera (b) Coleoptera (c) Collembola (d) Thysanura
Ans: B
80. Microcline is the main source of which nutrient element ?
(a) Fe (b) Mn (c) Cu (d) K
Ans: D
81. When the dark period of a short-day plant is interrupted by a brief exposure to light, the plant will
(a) Flower immediately (b) Not flower at all (c) Turn into a long-day plant (d) Produce more flowers
Ans: B
82. In which of the land slopes, graded bench terracing is recommended ?
(a) 0% – 10% (b) 10% – 15% (c) 16% – 33% (d) >33%
Ans: C
83. Which of the following test is used to test the independence of attributes in contingency table ?
(a) Chi-square test (b) t-test (c) f-test (d) z-test
Ans: A
84. Which one of the following tree plants is recommended for plantation in Western Himalayan region ?
(a) Azadirachta indica (b) Dalbergia sissoo (c) Grewia optiva (d) Papulus deltoides
Ans: C
85. Paddy Brown hopper belongs to the family
(a) Pyralidae (b) Chrysomelidae (c) Cicadelidae (d) Delphacidae
Ans: D
86. Pedigree analysis is most commonly used by
(a) Geneticist (b) Plant breeder (c) Both (a) and (b) (d) None of these
Ans: C
87. The colour of 2,3,5-triphenyl tetrazolium chloride solution is
(a) Red (b) Colourless (c) Blue (d) Purple
Ans: B
88. Hybrid produced by crossing the parents differing in single character is called as
(a) Triple cross hybrid (b) Double cross hybrid (c) Single cross hybrid (d) Mono hybrid
Ans: D
89. For the validity of F-test in ANOVA, which of the following is an important assumption ?
(a) The observations are taken from the normal population. (b) The observation are mutually independent.
(c) Both (a) and (b) (d) Neither (a) nor (b)
Ans: C
90. Khaira disease of rice is caused due to deficiency of
(a) Zn (b) Fe (c) Mn (d) Mo
Ans: A
91. C4 plants are more efficient in photosynthesis than C3 plants due to
(a) Higher leaf area (b) Presence of large number of chloroplasts in the leaf cells
(c) Presence of thin cuticle (d) Lower rate of photorespiration
Ans: D
92. The Directorate of Plant Protection, Quarantine and Storage is situated at
(a) New Delhi (b) Faridabad (c) Gaziabad (d) Gurgaon
Ans: B
93. Which one is NOT a broad leaved weed ?
(a) Digera arvensis (b) Celsia argentia
(c) Eleucine indica (d) Eclipta alba
Ans: C
94. Zen garden are also known as
(a) Italian garden (b) Mughal garden
(c) English garden (d) Japanese garden
Ans: D
95. An example of recalcitrand seed is
(a) Mango (b) Paddy (c) Bajra (d) Black gram
Ans: A
96. Which one of the following nutrients play an important role in biological nitrogen fixation ?
(a) B (b) Mo (c) Cu (d) Mg
Ans: B
97. Which one of the following is known as Top Cross ?
(a) Inbred variety cross (b) Single cross
(c) Double cross (d) Triple cross
Ans: A
98. Which one of the irrigation scheduling approach is simplest and easy ?
(a) Lysimetry approach (b) Climatological approach
(c) Soil moisture depletion approach (d) Critical stage approach
Ans: D
99. The probability that a leap year should have 53 Fridays is
(a) 1/7
(b) 2/ 7
(c) 53 /365
(d) 53/ 366
Ans: B
100. Which type of hybrids are commonly available in Sorghum ?
(a) Mono-cross (b) Double-cross (c) Triple-cross (d) Single-cross
Ans: D
(a) Vermicompost (b) Oil cakes (c) Green manure (d) Poultry manure
Ans: B
52. Aflatoxin is produced by
(a) Mucor (b) Yeast (c) Aspergillus (d) Rhizobium
Ans: C
53. Blood of insect is called
(a) Haemolymph (b) Haemoglobin (c) Lymph (d) Albumin
Ans: A
54. Plant diseases caused by fungi belonging to peronosporales are called
(a) Smut (b) Rust (c) Downey mildew (d) Powdery mildew
Ans: C
55. Citrus canker disease is caused by
(a) Pseudomonas (b) Xanthomonas (c) Erwinia (d) Agrobacterium
Ans: B
56. Insect growth occurs by
(a) Regeneration (b) Modification (c) Transformation (d) Moulting
Ans: D
57. What is the status of generation time during the exponential phase of bacterial growth ?
(a) Constant (b) Increases (c) Decreases (d) Variable
Ans: A
58. Post-harvest internal browning (discolouration) is a common symptom of chilling injury in
(a) Apple (b) Citrus (c) Pineapple (d) Banana
Ans: C
59. In cabbage, cauliflower and broccoli, hollow stems with darkened interior are caused by
(a) Magnesium deficiency (b) Boron deficiency (c) Calcium deficiency (d) Chilling temperature
Ans: B
60. How many net ATP molecules are produced during glycolysis cycle ?
(a) 38 (b) 4 (c) 2 (d) 6
Ans: C
61. DDT was discovered by
(a) Zeidler (b) Paul Muller (c) Faraday (d) Van der Linden
Ans: B
62. Which growth index represent the photosynthesis rate in plants ?
(a) LAI (b) NAR (c) CGR (d) RGR
Ans: B
63. Let ‘r’ be the correlation co-efficient between X and Y. Then correlation co-efficient between X/3 and 3Y is
(a) 1 (b) 3r (c) r/3 (d) r
Ans: D
64. The grassy weeds escape the toxicity of 2, 4-D herbicide by the process of
(a) Differential translocation (b) Conjugation (c) Differential protoplasmic resistance (d) Metabolism
Ans: B
65. Lipaphis erysimi is an important pest of which crop ?
(a) Wheat (b) Maize (c) Mustard (d) Rose
Ans: C
66. The Seed Act was passed in the year
(a) 1966 (b) 1970 (c) 1985 (d) 1990
Ans: A
67. In which year the first KVK was established by ICAR ?
(a) 1970 (b) 1974 (c) 1980 (d) 1984
Ans: B
68. The biological oxidation of ammonium into nitrate is called
(a) Aminization (b) Ammonification (c) Nitrification (d) Denitrification
Ans: C
69. Productivity of sugarcane in South India is more than in North India due to
(a) Longer crop duration (b) More irrigation facilities
(c) Lesser biotic stresses (d) Better weed control
Ans: A
70. Hygroscopic water in soil is held at a pressure of
(a) – 0.1 to 0.3 bar (b) 0.1 to 2 bar (c) 2 to 10 bar (d) less than –31 bar
Ans: D
71. What additional quantity of fertilizers are applied to ratoon over the planted sugarcane crop ?
(a) 15% – 20% (b) 25% – 30% (c) 35% – 50% (d) 50% – 75%
Ans: B
72. Deficiency symptoms of Zn first appear on
(a) Middle leaves (b) Younger leaves (c) Oldest leaves (d) Apical leaves
Ans: A
73. If the arithmetic and geometric mean of two numbers are 6.5 and 6.0, respectively, then those two numbers are
(a) 8, 5 (b) 7, 6 (c) 9, 5 (d) 4, 9
Ans: D
74. The strata of atmosphere just above the earth surface is called as
(a) Stratosphere (b) Mesosphere (c) Troposphere (d) Thermosphere
Ans: C
75. Retting process of jute is
(a) Biological (b) Biochemical (c) Physical (d) Physiological
Ans: C
76. In which country, International Rice Gene Bank is situated ?
(a) India (b) Philippines (c) China (d) Japan
Ans: B
77. 5-Glucose-6-phosphate inhibits which of the following enzymes ?
(a) Hexokinase (b) Glucokinase (c) Fructose-1,6-biphosphatase (d) Phosphorylase kinase
Ans: A
78. In India, the new Insecticides Rules came into force in the year
(a) 1965 (b) 1968 (c) 1970 (d) 1971
Ans: D
79. Which of the insect order contains largest number of species ?
(a) Hymenoptera (b) Coleoptera (c) Collembola (d) Thysanura
Ans: B
80. Microcline is the main source of which nutrient element ?
(a) Fe (b) Mn (c) Cu (d) K
Ans: D
81. When the dark period of a short-day plant is interrupted by a brief exposure to light, the plant will
(a) Flower immediately (b) Not flower at all (c) Turn into a long-day plant (d) Produce more flowers
Ans: B
82. In which of the land slopes, graded bench terracing is recommended ?
(a) 0% – 10% (b) 10% – 15% (c) 16% – 33% (d) >33%
Ans: C
83. Which of the following test is used to test the independence of attributes in contingency table ?
(a) Chi-square test (b) t-test (c) f-test (d) z-test
Ans: A
84. Which one of the following tree plants is recommended for plantation in Western Himalayan region ?
(a) Azadirachta indica (b) Dalbergia sissoo (c) Grewia optiva (d) Papulus deltoides
Ans: C
85. Paddy Brown hopper belongs to the family
(a) Pyralidae (b) Chrysomelidae (c) Cicadelidae (d) Delphacidae
Ans: D
86. Pedigree analysis is most commonly used by
(a) Geneticist (b) Plant breeder (c) Both (a) and (b) (d) None of these
Ans: C
87. The colour of 2,3,5-triphenyl tetrazolium chloride solution is
(a) Red (b) Colourless (c) Blue (d) Purple
Ans: B
88. Hybrid produced by crossing the parents differing in single character is called as
(a) Triple cross hybrid (b) Double cross hybrid (c) Single cross hybrid (d) Mono hybrid
Ans: D
89. For the validity of F-test in ANOVA, which of the following is an important assumption ?
(a) The observations are taken from the normal population. (b) The observation are mutually independent.
(c) Both (a) and (b) (d) Neither (a) nor (b)
Ans: C
90. Khaira disease of rice is caused due to deficiency of
(a) Zn (b) Fe (c) Mn (d) Mo
Ans: A
91. C4 plants are more efficient in photosynthesis than C3 plants due to
(a) Higher leaf area (b) Presence of large number of chloroplasts in the leaf cells
(c) Presence of thin cuticle (d) Lower rate of photorespiration
Ans: D
92. The Directorate of Plant Protection, Quarantine and Storage is situated at
(a) New Delhi (b) Faridabad (c) Gaziabad (d) Gurgaon
Ans: B
93. Which one is NOT a broad leaved weed ?
(a) Digera arvensis (b) Celsia argentia
(c) Eleucine indica (d) Eclipta alba
Ans: C
94. Zen garden are also known as
(a) Italian garden (b) Mughal garden
(c) English garden (d) Japanese garden
Ans: D
95. An example of recalcitrand seed is
(a) Mango (b) Paddy (c) Bajra (d) Black gram
Ans: A
96. Which one of the following nutrients play an important role in biological nitrogen fixation ?
(a) B (b) Mo (c) Cu (d) Mg
Ans: B
97. Which one of the following is known as Top Cross ?
(a) Inbred variety cross (b) Single cross
(c) Double cross (d) Triple cross
Ans: A
98. Which one of the irrigation scheduling approach is simplest and easy ?
(a) Lysimetry approach (b) Climatological approach
(c) Soil moisture depletion approach (d) Critical stage approach
Ans: D
99. The probability that a leap year should have 53 Fridays is
(a) 1/7
(b) 2/ 7
(c) 53 /365
(d) 53/ 366
Ans: B
100. Which type of hybrids are commonly available in Sorghum ?
(a) Mono-cross (b) Double-cross (c) Triple-cross (d) Single-cross
Ans: D