कृषि र वन सामान्य ज्ञान – Agriculture & Forestry GK MCQ
कृषि र वन सामान्य ज्ञान – कृषि/वन प्रवेश
Agriculture & Forestry GK · Agriculture, Veterinary & Forestry Entrance · ३८८ प्रश्न
३८८ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि र वन सामान्य ज्ञान: 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 ‘Jhumma’ cultivation technique, prevalent in many parts of Nepal, is most closely associated with the sustainable management of:
सही उत्तर: ख) Irrigated Rice Fields
‘Jhumma’ cultivation (slash and burn) traditionally involves clearing a plot of land for agriculture, allowing it to recover for a short period before the process is repeated. This is a sustainable method within certain contexts for cultivating crops like rice in areas with limited irrigation. The other options don't align with this specific agricultural technique.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary function of root nodules found in legumes is to fix atmospheric nitrogen. This process converts gaseous nitrogen into a usable form for the plant. Which of the following best describes the colour of these nodules due to the presence of symbiotic bacteria?
सही उत्तर: घ) Purple
Legume root nodules are typically purple in color, this is because of the presence of nitrogen-fixing bacteria (Rhizobia) within the nodule. The purple pigmentation comes from enzymes involved in nitrogen fixation. Red and yellow are not typical colors associated with these nodules; green would suggest a chlorophyll presence which isn’t relevant to nitrogen fixing.
💬 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)
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The ‘locheed’ variety of rice, known for its early maturity and high yield, was developed by which agricultural research institution in Nepal?
सही उत्तर: क) National Agricultural Research Institute (NARI)
The National Agricultural Research Institute (NARI) is the primary institution responsible for developing and disseminating improved rice varieties in Nepal. While other institutions contribute to agricultural research, NARI has historically been at the forefront of rice breeding programs, including the ‘locheed’ variety.
💬 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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