कृषि, पशु र वन विज्ञान B.Sc. Ag र B.V.Sc. & A.H. प्रवेश तयारी

कृषि, पशु र वन विज्ञान प्रवेश: प्रश्न र उत्तर

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सही: ० / ०

91. The process of nitrogen fixation converts atmospheric nitrogen into:

    कCarbon dioxide. खWater vapor. गAmmonium ions (NH₄⁺). घOrganic compounds.
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92. The process of hydrolysis involves:

    कThe breaking down of a molecule by adding water. खThe joining together of molecules to form larger structures. गThe conversion of potential energy into kinetic energy. घThe release of heat during chemical reactions.
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93. What is the primary purpose of adding manganese to a steel alloy?

    कTo increase its ductility and malleability. खTo enhance its magnetic properties, primarily for transformer cores. गTo improve its tensile strength and resistance to corrosion. घTo reduce its density and weight.
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94. What is the significance of ‘Maan’ (Zea mays var. leucoplastica) cultivation in the hills of Nepal?

    कA) It's a primary cash crop exported internationally for its high protein content. खB) It's a drought-resistant variety used as a supplementary food source and to prevent soil erosion. गC) It’s primarily grown as an ornamental plant for decorative landscaping. घD) It's a genetically modified strain designed for increased yield in intensive farming systems.
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95. The ‘Khus’ (Cymbopogon winterianus) grass is traditionally cultivated extensively in Nepal for what primary purpose?

    कA) Production of high-grade cotton fibres. खB) Extraction of essential oils utilized in perfumery and aromatherapy. गC) As a primary fodder crop for livestock during winter months. घD) Large scale cultivation as a cover crop to prevent soil erosion.
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96. Which of the following best describes the role of mycorrhizae in agricultural systems within Nepal?

    कA) They are a parasitic fungi that cause diseases in crops. खB) They form symbiotic relationships with plant roots, enhancing nutrient uptake, particularly phosphorus. गC) They act as bio-pesticides, controlling insect pests directly on plants. घD) They primarily function as weed suppressors, inhibiting the growth of unwanted plants.
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97. The practice of 'slash and burn' agriculture ('Jhoom') in Nepal's Terai region primarily supports what ecological function?

    कA) Permanent forest creation for biodiversity conservation. खB) Maintaining soil fertility through nutrient cycling and temporary fallow periods. गC) Maximizing timber yield for commercial logging operations. घD) Conversion of forested areas into large-scale dairy farms.
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98. In Nepal, what is the primary economic significance of bamboo cultivation, particularly species like *Dendrocalamus strictus*?

    कA) Production of high-value timber for export. खB) Utilization as a sustainable building material and biomass fuel source. गC) Primarily ornamental purposes in urban landscaping. घD) Large-scale production of edible bamboo shoots for the food industry.
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99. The term ‘lokta’ refers to which specific aspect of Nepal's forestry sector?

    कA type of indigenous tree species खA method of forest fire prevention गHandmade paper production from lokta bush bark घGovernment regulations for community forest management
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100. What is the standard spacing between rows when planting a crop with 60cm x 20 cm spacing?

     क30 cm ख40 cm ग50 cm घ60 cm
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