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
२,४७० 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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The process of nitrogen fixation converts atmospheric nitrogen into:
सही उत्तर: ग) Ammonium ions (NH₄⁺).
Nitrogen fixation, primarily carried out by bacteria, transforms atmospheric nitrogen gas (N₂) into ammonium ions (NH₄⁺), which is a form usable by plants. This process is crucial for the availability of nitrogen in ecosystems.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of hydrolysis involves:
सही उत्तर: क) The breaking down of a molecule by adding water.
Hydrolysis literally means 'splitting by water'. This process breaks down complex molecules, like carbohydrates or proteins, into simpler units through the addition of a water molecule. The other options describe distinct chemical processes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary purpose of adding manganese to a steel alloy?
सही उत्तर: ग) To improve its tensile strength and resistance to corrosion.
Manganese is added to steel alloys to significantly improve their magnetic properties, making them suitable for applications like transformer cores where strong magnetic fields are needed. While it does contribute to strength, the primary benefit is its magnetic contribution.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the significance of ‘Maan’ (Zea mays var. leucoplastica) cultivation in the hills of Nepal?
सही उत्तर: ख) B) It's a drought-resistant variety used as a supplementary food source and to prevent soil erosion.
‘Maan’ is a traditional indigenous maize variety crucial in the hills of Nepal as a resilient food source during dry periods and for soil conservation due to its deep root system. Options A & D are inaccurate; option C misrepresents its purpose.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ‘Khus’ (Cymbopogon winterianus) grass is traditionally cultivated extensively in Nepal for what primary purpose?
सही उत्तर: ख) B) Extraction of essential oils utilized in perfumery and aromatherapy.
‘Khus’ is predominantly grown in Nepal for its fragrant leaves, which are used to produce essential oils valued in the perfume and aromatherapy industries. Options A & C represent alternative uses; option D describes a less common practice.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following best describes the role of mycorrhizae in agricultural systems within Nepal?
सही उत्तर: ख) B) They form symbiotic relationships with plant roots, enhancing nutrient uptake, particularly phosphorus.
Mycorrhizae are beneficial fungi that establish a symbiotic relationship with plant roots. This partnership dramatically increases the plant’s ability to absorb nutrients, especially phosphorus which is often limited in Nepali soils. Options A & C describe harmful roles; option D inaccurately represents their function.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The practice of 'slash and burn' agriculture ('Jhoom') in Nepal's Terai region primarily supports what ecological function?
सही उत्तर: ख) B) Maintaining soil fertility through nutrient cycling and temporary fallow periods.
'Jhoom' agriculture relies on a rotational system – clearing land for cultivation, burning the residue to enrich the soil (nutrient cycling), and then allowing it to regenerate as a fallow period. This mimics natural forest processes. Option A is incorrect; option C focuses on timber yield, and D misrepresents the practice’s primary purpose.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In Nepal, what is the primary economic significance of bamboo cultivation, particularly species like *Dendrocalamus strictus*?
सही उत्तर: ख) B) Utilization as a sustainable building material and biomass fuel source.
Bamboo is crucial to Nepal's economy due to its versatility – used extensively in construction (a sustainable alternative to timber), fuel production, and as a raw material. Option A misrepresents its use; option C describes niche market, while option D is a smaller contribution.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The term ‘lokta’ refers to which specific aspect of Nepal's forestry sector?
सही उत्तर: ग) Handmade paper production from lokta bush bark
‘Lokta’ specifically refers to the traditional Nepali craft of producing handmade paper (lokta paper) using the inner bark of the *Broussonetia papyrifera* tree. The other options describe different aspects of forestry but do not relate to the term ‘lokta’.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the standard spacing between rows when planting a crop with 60cm x 20 cm spacing?
सही उत्तर: घ) 60 cm
With a row spacing of 60 cm and a plant spacing of 20 cm within the rows, the standard spacing between rows would indeed be 60cm. This is because the plants are arranged in a grid pattern with equal distances between each row.
💬 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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