आईओई इन्जिनियरिङ प्रवेश (त्रिवि) BE / B.Arch प्रवेश परीक्षा तयारी
आईओई इन्जिनियरिङ प्रवेश (त्रिवि) – BE / B.Arch प्रवेश परीक्षा
IOE BE / B.Arch Entrance · IOE Entrance (TU)
३,८४१ प्रश्न उपलब्ध। मोड छान्नुहोस्:
BE/B.Arch 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 moment of inertia of a uniform solid cylinder of mass M and radius R about its own axis is:
सही उत्तर: ख) MR²/2
Like a disc, a solid cylinder has I = ½MR² about its axis of symmetry.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A bullet loses 1/20 of its velocity in passing through one plank. Assuming the same resistance in each plank, the number of such planks needed to stop it completely is:
सही उत्तर: घ) 11
Energy lost per plank = ½mv²[1 − (19/20)²] = 0.0975 × ½mv²; planks needed = 1/0.0975 ≈ 10.3, so 11 planks are required.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The work done by a variable force acting along the x-axis is given by the:
सही उत्तर: ग) area under the force–displacement graph
W = ∫F dx, which equals the area under the F–x curve (the area under F–t gives impulse).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A light ball collides elastically head-on with a very heavy body at rest. After the collision the light ball:
सही उत्तर: ग) rebounds with nearly the same speed
For m₁ ≪ m₂ the elastic-collision result v₁ = (m₁ − m₂)u/(m₁ + m₂) ≈ −u: it bounces back with almost its original speed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A body of mass 2 kg has a kinetic energy of 16 J. The magnitude of its linear momentum is:
सही उत्तर: ग) 8 kg m/s
p = √(2mK) = √(2 × 2 × 16) = √64 = 8 kg m/s.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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One kilowatt-hour (1 kWh) is equal to:
सही उत्तर: ख) 3.6 × 10⁶ J
1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 0.5 kg stone tied to a 1 m string is whirled in a horizontal circle at 2 revolutions per second. Neglecting gravity, the tension in the string is:
सही उत्तर: ग) 8π² N
ω = 2π × 2 = 4π rad/s; T = mω²r = 0.5 × 16π² × 1 = 8π² N (about 79 N).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A block slides down a smooth (frictionless) plane inclined at 30° to the horizontal. Its acceleration is (g = 10 m/s²):
सही उत्तर: ग) 5 m/s²
On a smooth incline a = g sin θ = 10 × sin 30° = 5 m/s².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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According to Newton's third law, action and reaction forces:
सही उत्तर: ग) act on different bodies
Action and reaction are equal and opposite but act on two different bodies, so they never cancel each other.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The inertia of a body depends on its:
सही उत्तर: घ) mass
Mass is the quantitative measure of inertia.
💬 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।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।