1. Dangerous gas for depletion of ozone layer is: (A)Ethane (B) Methane (C)CFC (D) Carbon-dioxide 2. Which of the following is not a biopesticide? (A) Bioneem (B) Carbaryl (C) Biolap (D) Dipel 3. Major cropping system of trans-gangatic plains is (A)Soybean – wheat (B) Rice – rice (C) Rice –wheat (D) Maize – wheat 4. Photosynthetic inhibition by 02 is called: (A) Reaction (B) Warburg’s effect (C) Back inhibition (D) Competitive effect 5. Crop logging is done in (A) Sugarcane (B) Maize (C)Tobacco (D) Cotton 6. Blue revolution is related with: (A) Crops (B) Energy source (C) Fish (D) Oilseeds 7. Inflorescence in rice is known as A) Ear (B) Raceme (C) Spike (D) Panicle 8. Alluvial soils are found in : (A) Deserts (B) Forests (C) River delta (D) Mountains 9. Weight of one cotton bale is (A)170 Kg (B) 160 Kg (C) 180 Kg (D) 190 Kg 10. Hybrid cotton in India was evolved for the first time in (A) 1975 (B) 1980 (C) 1970 (D) 1985 11. Net cultivated area in India during 2004- 05 was (A)138 million hectare (B) 141 million hectare (C) 135 million hectare (D) 144 million hectare 12. The relative proportion of sand, silt and clay is called (A) Soil texture (B) Soil aggregation (C) Soil structure (D) Soil taxonomy 13. Which of the following crops is thermo-insensitive? (A) Sunflower (B) Wheat (C) Rice (D) Jowar 14. The IARI was established in : 24. (A)1907 (B) 1909 (C) 1904 (D) 1905 15. In which of the following crops GM varieties are available for cultivation in India (A) Mustard (B) Cotton (C) Soybean (D) All of the above 16. Photo-periodically rice is a (A)Day neutral plant (B) Long day plant (C) Short day plant (D) None of these 17. The present level of carbon-dioxide in atmosphere is : (A)190 ppm (B) 295 – 300 ppm (C) 420 – 460 ppm (D) 490 ppm 18. Maize belongs to the category : (A)Bisexual (B) Monoecious (C) Dioecious (D) None of these 19. Pheromone trap attracts: (A)Female moths (B) Female bugs (C) Male moths (D) Caterpillars 20. Origin place of soybean is (A)Brazil (B) Mexico (C) China (D) Peru 21. India rank first in the production of the following crops in the world: (A)Rice (B) Wheat (C) Soybean (D) Pigeon-pea 22. In plants, enzyme responsible for the synthesis of the malic acid is : (A) Rubisco (B) PEP carboxylase (C)Kinase (D) Urease 23. Which soil has highest efficiency? (A)Loamy soil (B) Sandy soil (C) Clay soil (D) None of these 24. Which of the following insecticides may be recommended for the control of termites? (A)Chlorpyriphos (B) Nimbicidine (C) Dimethonate (D) Methyl- 0 – demetone 25. Correct order of rice producing countries is (A) China> India> Indonesia> Thailand (B) India> China> Indonesia> Thailand (C) Indonesia> Thailand> China> India (D) None on these 26. The depth of seeding in wheat is depends on (A) Length of mesocotyl (B) Length of radical (C) Length of coleoptiles (D) None of these 27. IGFRI is located at: (A) Jallandhar (B) Jodhpur (C) Jhansi (D) Jorhat 28. The photosynthetically active (PAR) falls in the range of (A) 400 – 700 nm (B) 100- 400 nm (C) 700- 1000 nm (D) None of the above 29. Missing data are calculated by using (A) Field plot technique (B) Missing plot technique (C) ANOVA (D) None of these 30. Soil mulch is useful in: (A) Minimize evaporation losses (B) Improving aeration (C) Improving drainage (D) Removing weeds