इन्जिनियरिङ काउन्सिल (NEC) – Engineering Council (NEC) MCQ
इन्जिनियरिङ काउन्सिल (NEC) – लाइसेन्स परीक्षा
Engineering Council (NEC) · Nepal Professional License Exams · ५९७ प्रश्न
५९७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
इन्जिनियरिङ काउन्सिल (NEC): 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 Engineering News Record formula is used to estimate the:
सही उत्तर: ग) Load-carrying capacity of a driven pile from driving data
It is a dynamic pile formula relating hammer energy and set (penetration per blow) to pile capacity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The coefficient of volume compressibility mv is related to the coefficient of compressibility av and the initial void ratio e0 by:
सही उत्तर: क) mv = av/(1 + e0)
mv is the volumetric strain per unit increase in effective stress: mv = av/(1 + e0).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Secondary consolidation (secondary compression) of a clay is caused mainly by:
सही उत्तर: घ) Plastic readjustment (creep) of the soil skeleton after excess pore pressure has dissipated
Secondary compression continues at nearly constant effective stress due to creep of the soil structure, after primary consolidation ends.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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According to the Mohr-Coulomb theory, the failure plane in a soil sample is inclined to the major principal plane at an angle of:
सही उत्तर: घ) 45° + φ/2
From the geometry of Mohr's circle tangent to the failure envelope, the failure plane makes 45° + φ/2 with the major principal plane.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The field vane shear test is most suitable for determining the:
सही उत्तर: ग) In-situ undrained shear strength of soft clays
The vane is pushed into soft saturated clay and rotated; the torque at failure gives the undrained shear strength in situ.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The over-consolidation ratio (OCR) of a clay is defined as:
सही उत्तर: क) Maximum past effective vertical stress divided by present effective vertical stress
OCR = σ'p/σ'0; OCR = 1 for normally consolidated clay and greater than 1 for over-consolidated clay.
💬 टिप्पणी / गल्ती रिपोर्ट (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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