कृषि, पशु र वन विज्ञान B.Sc. Ag र B.V.Sc. & A.H. प्रवेश तयारी
कृषि, पशु र वन विज्ञान – B.Sc. Ag र B.V.Sc. & A.H. प्रवेश
B.Sc. Ag & B.V.Sc. 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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A farmer requires 92 kg of nitrogen for their crops. Considering urea is 46% nitrogen, how many kilograms of urea are needed?
सही उत्तर: ख) 190 kg
To determine the required urea, we calculate: (92 kg N) / 0.46 = 197.8 kg. Since you can't buy fractions of a bag, rounding up to 197.8 gives us nearly 200kg. The closest answer is therefore 190 kg.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The practice of shifting cultivation in Nepal’s hilly regions, where farmers clear patches of forest for temporary agriculture before moving on, is commonly referred to as:
सही उत्तर: ग) Jhumming (slash-and-burn)
'Jhumming,' or slash-and-burn cultivation, describes the traditional system of agriculture practiced in many parts of Nepal, involving clearing land for a single season’s crop and then allowing it to regenerate. The other options represent different farming techniques.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What phenomenon explains the enhanced growth rate often observed in F1 hybrid crops like corn?
सही उत्तर: ग) Hybrid vigour
Hybrid vigour, or heterosis, describes the increased size and yield of F1 hybrids due to the combined favorable genes from both parent plants. While gene flow, genetic drift, and epigenetic modification are relevant concepts in genetics, they don't specifically explain the superior growth observed in F1 hybrids.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In 2018, International Day of Forests was observed globally to promote which primary objective?
सही उत्तर: ख) Promotion of sustainable forest management practices
The International Day of Forests, established in 2012, primarily focuses on raising awareness and action to protect and sustainably manage forests. It's about conservation and responsible forestry; the other options represent unsustainable practices.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following cropping practices is MOST suitable for maintaining soil fertility on sloping agricultural land in Nepal?
सही उत्तर: ग) Crop rotation including legumes
Crop rotation, particularly when incorporating legumes (like beans or lentils), naturally fixes nitrogen in the soil, enriching it. The other options are less effective at addressing long-term soil fertility issues on slopes – rice can cause erosion, wheat may deplete nutrients if not managed, and monoculture is detrimental.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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‘Obliterated’ as used in ‘The flood obliterated all traces of…’ most closely means:
सही उत्तर: ख) b) Completely destroyed
Option (b), ‘completely destroyed,’ is the correct answer. The context describes a flood, and 'obliterated' refers to erasing or wiping away all evidence. Options (a), (c), and (d) are less accurate portrayals of the word’s meaning in this sentence.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What does the term 'equivalence point' in a titration signify?
सही उत्तर: ख) The point at which one reactant has been completely neutralized
The correct answer is 'The point at which one reactant has been completely neutralized' (option 2). At the equivalence point, the moles of acid and base are equal, representing complete neutralization. The other options relate to inaccurate definitions or observation of the titration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following acids has the highest acidity?
सही उत्तर: ख) Formic acid (HCOOH)
The correct answer is ‘Formic acid’ (option 2). Acidity of carboxylic acids increases as the number of carbon atoms increase, leading to a stronger H-bond formation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the primary reason for using dilute sulfuric acid (H₂SO₄) as a catalyst in the esterification reaction between acetic acid and ethanol?
सही उत्तर: ग) It protonates the carbonyl group, making it more reactive
The correct answer is 'It protonates the carbonyl group, making it more reactive' (option 3). Sulfuric acid acts as a catalyst by protonating the carbonyl group of acetic acid, increasing its electrophilicity and facilitating the reaction. The other options are incorrect explanations for the role of sulfuric acid.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The reaction between calcium carbide and water produces acetylene gas. What is the main product formed during this reaction, besides acetylene?
सही उत्तर: क) Calcium carbonate
The correct answer is ‘Hydrogen’ (option 2). Calcium carbide (CaC₂) reacts with water to produce calcium hydroxide (Ca(OH)₂), and acetylene (C₂H₂). The other options are either byproducts or completely unrelated to the reaction.
💬 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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