कृषि, पशु र वन विज्ञान प्रवेश
कृषि, पशु र वन विज्ञान प्रवेश
Agriculture, Veterinary & Forestry Entrance · २,४९३ प्रश्न
२,४९३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
कृषि/वन 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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Choose the word closest in meaning to 'cultivate':
सही उत्तर: घ) grow
To cultivate means to prepare land and grow crops on it. 'Harvest' is a later stage of gathering crops, not growing them.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Choose the word closest in meaning to 'barren':
सही उत्तर: ग) unproductive
Barren land or soil produces little or nothing, so it is unproductive. 'Fruitful' is the opposite.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An astronaut in an orbiting satellite feels weightless because:
सही उत्तर: ग) Both the astronaut and the satellite are in free fall
Gravity at orbital heights is still strong; it provides the centripetal force. Since astronaut and satellite fall together, there is no normal reaction, so weight is not felt.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man of mass 60 kg stands in a lift accelerating upward at 2 m/s². Taking g = 10 m/s², his apparent weight is:
सही उत्तर: ग) 720 N
Apparent weight R = m(g + a) = 60 × 12 = 720 N. 480 N would be the reading if the lift accelerated downward.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A stone is dropped from the top of a 45 m high tower. Taking g = 10 m/s², the time taken to reach the ground is:
सही उत्तर: ग) 3 s
h = ½gt², so t = √(2h/g) = √(90/10) = 3 s.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Food cooks faster in a pressure cooker because:
सही उत्तर: ख) The boiling point of water increases with pressure
Higher pressure raises water's boiling point above 100 °C, so food is cooked at a higher temperature. At high altitudes, lower pressure lowers the boiling point, making cooking slower.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a vernier calliper, 10 vernier scale divisions coincide with 9 main scale divisions, and 1 MSD = 1 mm. Its least count is:
सही उत्तर: ग) 0.1 mm
LC = 1 MSD − 1 VSD = 1 − 0.9 = 0.1 mm. 0.01 mm is the typical least count of a screw gauge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The greenhouse effect is mainly due to the trapping of:
सही उत्तर: ख) Infrared radiation
Earth re-emits absorbed solar energy as infrared radiation, which gases like CO₂, methane and water vapour absorb, warming the lower atmosphere.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ozone layer protects living organisms from harmful:
सही उत्तर: घ) Ultraviolet radiation
Stratospheric ozone absorbs most of the Sun's harmful UV rays, which can cause skin cancer and damage plants. Infrared is felt as heat.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the electromagnetic spectrum, which radiation has the longest wavelength?
सही उत्तर: ख) Radio waves
Radio waves have the longest wavelength and lowest frequency; gamma rays have the shortest wavelength.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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