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
२,४२५ 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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What is the primary function of enzymes in biochemical reactions? (बायोकेमिकल प्रतिक्रियाहरूमा एन्जाइमको मुख्य कार्य के हो?)
सही उत्तर: क) Increase reaction rate
Enzymes are biological catalysts that speed up the rates of chemical reactions without being consumed themselves. The correct answer describes their key role in accelerating biochemical processes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of converting nitrogen gas into ammonia by using iron and hydrogen is called: (लोहा र हाइड्रोजन प्रयोग गरेर नाइट्रोजन ग्यासलाई अमोनियामा परिवर्तन गर्ने प्रक्रियालाई के भइन्छ?)
सही उत्तर: ख) Reduction
This process involves the reduction of nitrogen gas. Iron acts as a catalyst, facilitating the reaction with hydrogen to form ammonia. The other options describe different chemical processes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A solution is prepared by dissolving 2 grams of sodium chloride (NaCl) in sufficient water. What is the molarity of this solution? (पानीमा पर्याप्त मात्रामा घोलाएर दुई ग्राम सोडियम क्लोराइड (NaCl) ले बनेको घोलिको मोलरता के हो?)
सही उत्तर: घ) 4.0 M
First, calculate the moles of NaCl: 2g / 58.44 g/mol = 0.034 mol. Then, calculate molarity: 0.034 mol / 1 L = 0.034 M. The closest answer is 0.034M.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following acids has the highest acidity strength? (रसायन विज्ञानमा निम्न अम्लीयताको आधारमा कुन छ?
सही उत्तर: ग) HNO₃
Nitric acid (HNO₃) is a stronger acid than hydrochloric acid (HCl) or sulfuric acid (H₂SO₄) due to its higher electronegativity and greater ability to dissociate in water. Sulfuric acid's strength is affected by the sulfate ion, reducing its overall acidity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The standard reduction potential of Zn²⁺/Zn is -0.76 V and that of Cu²⁺/Cu is +0.34 V. What is the maximum possible cell potential for a galvanic cell constructed using these two metals? (Give your answer in Volts)
सही उत्तर: ख) 1.10V
The cell potential (E) is calculated as E = E°cell = Ecathode - Eanode. The cathode is the reduction half-cell (-0.76 V), and the anode is the oxidation half-cell (+0.34 V). Therefore, E = -0.76V - 0.34V = -1.10V. The most tempting answer is 0.10V as it’s a small value; however, this would require a very significant difference in potentials.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following elements is essential for chlorophyll synthesis in plants?
सही उत्तर: ग) Nitrogen
Nitrogen is a key component of chlorophyll molecules, facilitating photosynthesis. Carbon is also vital but not as directly involved in chlorophyll structure as nitrogen.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of converting atmospheric nitrogen into ammonia is known as:
सही उत्तर: ख) Nitrogen Fixation
Nitrogen fixation is the biological or industrial conversion of gaseous nitrogen into usable forms like ammonia. Combustion involves burning, oxidation refers to oxygen reactions and neutralization is a chemical reaction between an acid and a base.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ‘Khukuri’ fruit, a local variety of apple grown in western Nepal, is notable for its:
सही उत्तर: ग) Unique blue-black skin color and exceptionally sweet flesh.
The Khukuri apple is recognized for its distinctive color – a deep blue-black – combined with a notably sweet taste. While size can vary, acidity isn't a defining characteristic; resistance to disease isn’t a prominent trait.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Nepal’s diverse forest ecosystems are classified based on several key characteristics. Which factor is MOST crucial in determining the ‘Coniferous Forest Zone’ designation?
सही उत्तर: ग) A significant proportion of land elevation above 2,500 meters.
The Coniferous Forest Zone is defined by a high altitude and a climate characterized by cooler temperatures and significant snowfall. This leads to the prevalence of coniferous trees adapted to these conditions – unlike options focusing on rainfall patterns or deciduous tree species.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The concept of ‘agroforestry’ in Nepal primarily focuses on:
सही उत्तर: ख) Integrating trees and shrubs into agricultural systems for various benefits.
Agroforestry involves combining tree planting with agricultural practices. This can improve soil fertility, provide shade, enhance biodiversity, and diversify income sources – aligning with the core principles of integrating trees into farming landscapes.
💬 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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