नेपाल व्यावसायिक लाइसेन्स नेपाल इन्जिनियरिङ काउन्सिल लाइसेन्स तयारी
नेपाल व्यावसायिक लाइसेन्स – नेपाल इन्जिनियरिङ काउन्सिल लाइसेन्स
NEC License Exam · Nepal Professional License Exams
२,४१४ प्रश्न उपलब्ध। मोड छान्नुहोस्:
लाइसेन्स परीक्षा: 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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According to Boussinesq's theory, the vertical stress at depth z directly below a point load Q on the surface of a semi-infinite soil mass is:
सही उत्तर: ख) 3Q/(2πz²)
On the load axis Boussinesq's equation reduces to σz = 3Q/(2πz²) ≈ 0.4775 Q/z².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The shrinkage limit of a soil is the water content:
सही उत्तर: ख) Below which further loss of moisture causes no further reduction in volume
Below the shrinkage limit the soil volume stays constant on drying; the plastic limit is the 3 mm thread test.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the Unified / IS soil classification system, the group symbol 'CH' denotes:
सही उत्तर: घ) Inorganic clay of high plasticity
C stands for clay and H for high plasticity (liquid limit above 50%).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The relative density (density index) of a cohesionless soil with natural void ratio e is:
सही उत्तर: क) (emax − e)/(emax − emin)
Relative density compares the in-situ void ratio with the loosest and densest states: Dr = (emax − e)/(emax − emin).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A soil sample has a bulk unit weight of 19.8 kN/m³ and a water content of 10%. Its dry unit weight is:
सही उत्तर: ग) 18.0 kN/m³
γd = γ/(1 + w) = 19.8/1.10 = 18.0 kN/m³.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In post-tensioned prestressed concrete, the tendons are:
सही उत्तर: ख) Tensioned after the concrete has hardened and then anchored against it
In post-tensioning, tendons in ducts are stressed after the concrete gains strength and anchored at the ends; pre-tensioning stresses them before casting.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 1077, the water absorption of common burnt clay bricks of classes up to 12.5, after 24 hours immersion in cold water, should not exceed:
सही उत्तर: घ) 20% by weight
IS 1077 limits water absorption to 20% by weight for these brick classes (15% for higher classes).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The chemical reaction of cement with water (hydration) is:
सही उत्तर: ख) Exothermic, releasing heat
Hydration of cement compounds releases heat, which is why mass concrete needs low-heat cement and temperature control.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Road tar, as distinct from bitumen, is obtained by:
सही उत्तर: क) Destructive distillation of coal or wood
Tar comes from destructive distillation of organic matter such as coal or wood, whereas bitumen is a residue of petroleum refining.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following ferrous materials has the highest carbon content?
सही उत्तर: ग) Cast iron
Cast iron contains about 2-4% carbon, far more than steels (generally below about 1.5%) and wrought iron (nearly pure).
💬 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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