कृषि, पशु र वन विज्ञान B.Sc. Forestry प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Forestry प्रवेश
B.Sc. Forestry Entrance · Agriculture, Veterinary & Forestry Entrance
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि, पशु र वन विज्ञान प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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Which of the following is a key benefit observed when utilizing intercropping techniques like 'strip cropping' in Nepali agricultural systems? (a) Increased soil erosion due to reduced ground cover. (b) Enhanced biodiversity and pest control through varied plant communities. (c) Reduced nutrient uptake by crops due to competition. (d) Elimination of the need for manual weeding.
सही उत्तर: ख) (b) Enhanced biodiversity and pest control through varied plant communities
Strip cropping, a common intercropping method, minimizes soil erosion and promotes greater biodiversity which leads to better pest control. The other options are either detrimental effects or oversimplifications of the technique's benefits.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The traditional system of land division in Nepal, based on measuring units like bigha and chauna, primarily originated in which region? (a) Kathmandu Valley (b) Terai region (c) Hills region (e.g., Siwalik Range) (d) Far-western Nepal
सही उत्तर: ग) (c) Hills region (e.g., Siwalik Range)
The bigha and chauna systems developed in the hills regions of Nepal like the Siwaliks, where agricultural practices were historically more diverse and localized. The Terai region adopted a different system largely influenced by British colonial land measurement practices. Kathmandu Valley’s land division was heavily influenced by royal decrees and urban planning.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is NOT a characteristic property of organic compounds? (a) They are generally combustible. (b) They typically contain carbon and hydrogen. (c) They are usually soluble in water. (d) They often have lower melting and boiling points than inorganic compounds.
सही उत्तर: घ) (d) They often have lower melting and boiling points than inorganic compounds.
Option (c) is correct. Most organic compounds are hydrophobic (water-repelling) and therefore not readily soluble in water. The other options are all characteristics of organic compounds – they burn, contain C & H, and have lower melting/boiling points.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The concentration of a solution is defined as: (a) The total mass of solute in grams. (b) The volume occupied by the solution. (c) The amount of solute per unit volume of solvent. (d) The temperature at which the solution boils.
सही उत्तर: ग) (c) The amount of solute per unit volume of solvent.
Option (c) is correct. Concentration defines the amount of solute dissolved in a given volume of solvent, usually expressed as molarity or molality. Option (a) represents the total mass but not per unit volume. Option (b) describes volume, and option (d) relates to boiling point elevation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following reactions demonstrates a redox process? (a) Mixing sodium chloride with water. (b) Neutralization reaction between hydrochloric acid and sodium hydroxide. (c) Reaction between iron filings and dilute hydrochloric acid. (d) Dissolving carbon dioxide in water.
सही उत्तर: ग) (c) Reaction between iron filings and dilute hydrochloric acid.
Option (c) is correct. In this reaction, iron loses electrons (oxidation) while hydrogen ions gain electrons (reduction), thus demonstrating a redox process. Option (a) involves only ion exchange without electron transfer. Option (b) is a neutralization but doesn't involve oxidation or reduction. Option (d) is a physical change – dissolution – not redox.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the properties of acids based on their chemical reactions? (a) Acids react with metals to produce hydrogen gas and are electrolytes. (b) Acids react with bases to form salts and water and are non-electrolytes. (c) Acids react violently with water, producing alkaline solutions and are good conductors of electricity. (d) Acids neutralise both acids and bases, forming precipitate and are generally insoluble in water.
सही उत्तर: क) (a) Acids react with metals to produce hydrogen gas and are electrolytes.
Option (a) is correct because acids, when reacted with metals like zinc or iron, do indeed produce hydrogen gas and they are electrolytes due to the presence of ions in solution. The other options describe incorrect properties of acids – they don't form salts with bases, aren’t non-electrolytes, don’t violently react with water producing alkaline solutions, and don’t typically precipitate with bases.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following forest types dominates the higher altitudes (above 3000m) of central and western Nepal? (a) Sal Forests (b) Rhododendron Forests (c) Temperate Conifer Forests (d) Bamboo Forests
सही उत्तर: ग) (c) Temperate Conifer Forests
Temperate conifer forests, consisting of pine and fir trees, are the dominant vegetation type in the higher altitudes of Nepal. The other options – Sal, Rhododendron, and Bamboo – are typically found at lower elevations. Sal forests are mostly confined to the Terai region, Rhododendrons thrive at moderate altitudes, and bamboo is mainly prevalent in the foothills.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process by which plants absorb water from the soil primarily involves osmosis. Water potential in the roots is higher than that in the soil, causing water to move into the root cells. This movement is driven by the concentration gradient of solutes. Which of the following describes this process?
सही उत्तर: ग) C) Osmosis of water molecules from areas of high water potential to areas of low water potential
Osmosis is the correct answer because it accurately describes the movement of water through a semi-permeable membrane based on differences in water potential. Option A (active transport) is incorrect as it suggests energy input for water movement. Option B (diffusion) doesn’t specifically address the role of concentration gradients, and option D (capillary action) focuses solely on surface tension and isn't the primary mechanism.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Fill in the blank: ‘Veterinary medicine’ focuses on the prevention and treatment of diseases in ____ .
सही उत्तर: ग) animals
Veterinary medicine is specifically concerned with animal health. Plants, humans, and fungi are subjects of other medical disciplines.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A farmer needs to understand the concept of ‘carrying capacity’. What does this term primarily refer to in an agricultural context?
सही उत्तर: ख) the number of livestock that land can support
Carrying capacity refers to the maximum population of animals or plants that an environment can sustain. The other options are related agricultural considerations but don't directly address carrying capacity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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