आईओई इन्जिनियरिङ प्रवेश (त्रिवि) M.Sc. इन्जिनियरिङ प्रवेश तयारी
आईओई इन्जिनियरिङ प्रवेश (त्रिवि) – M.Sc. इन्जिनियरिङ प्रवेश
IOE M.Sc. Engineering 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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A material that breaks soon after its elastic limit is crossed is called:
सही उत्तर: ग) brittle
Brittle materials (e.g. glass, cast iron) fracture with little plastic deformation beyond the elastic limit.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two perpendicular SHMs x = A sin ωt and y = A sin 2ωt are superposed. The resulting Lissajous figure is:
सही उत्तर: ग) a figure of eight
A frequency ratio of 1 : 2 with these phases gives the figure-of-eight shaped Lissajous curve y = 2x√(1 − x²/A²).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A particle in SHM has a maximum speed of 10 m/s and a maximum acceleration of 50 m/s². Its amplitude is:
सही उत्तर: घ) 2 m
v_max = Aω and a_max = Aω², so ω = 50/10 = 5 rad/s and A = 10/5 = 2 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a particle in SHM with total energy E, the average kinetic energy over one complete cycle is:
सही उत्तर: क) E/2
KE = E cos²(ωt + φ), whose average over a cycle is E/2 (the average PE is also E/2).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A mass hangs from a spring and oscillates vertically. Compared with the same mass and spring oscillating horizontally on a smooth table, its period is:
सही उत्तर: ख) the same
Gravity only shifts the equilibrium position; the period T = 2π√(m/k) is unchanged.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A geostationary satellite must move in an orbit:
सही उत्तर: ख) in the equatorial plane, from west to east
To stay above one point it must orbit in the equatorial plane in the direction of the Earth's rotation (west to east) with a 24 h period.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The escape velocity from the surface of the Moon is about:
सही उत्तर: ग) 2.4 km/s
The Moon's small mass gives an escape speed of about 2.4 km/s, which is why it has retained no atmosphere.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A couple acting on a rigid body produces:
सही उत्तर: घ) pure rotation with no translation
A couple consists of two equal, opposite, non-collinear forces: the net force is zero but the net torque is not.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The theorem of perpendicular axes, I_z = I_x + I_y, is applicable to:
सही उत्तर: क) plane laminar bodies only
The perpendicular axes theorem holds for a lamina lying in the x–y plane, with z perpendicular to it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The moment of inertia of a thin-walled hollow cylinder of mass M and radius R about its own axis is:
सही उत्तर: क) MR²
All the mass lies at distance R from the axis, so I = MR².
💬 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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