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 moment of inertia of a triangular section of base b and height h about its centroidal axis parallel to the base is:
सही उत्तर: ग) bh³/36
For a triangle, I about the base is bh³/12; transferring to the centroid (h/3 from the base) gives bh³/12 − (bh/2)(h/3)² = bh³/36.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In project scheduling, 'crashing' an activity means:
सही उत्तर: घ) Reducing its duration by applying extra resources at extra cost
Crashing shortens critical activities, usually starting with the lowest cost slope, to reduce project duration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The contaminated liquid that percolates through and drains out of a sanitary landfill is called:
सही उत्तर: ग) Leachate
Leachate forms when rainwater passes through decomposing waste; landfills need liners and collection systems to control it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The organism commonly used as an indicator of faecal contamination of drinking water is:
सही उत्तर: ख) Escherichia coli
E. coli is abundant in human and animal faeces and easy to detect, so its presence indicates faecal pollution.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The jar test in water treatment is used to determine the:
सही उत्तर: क) Optimum dose of coagulant
Samples dosed with different coagulant amounts are flocculated and settled in jars to find the dose giving the best clarification.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A sedimentation tank treats 4,000 m³/day and has a surface area of 200 m². Its surface overflow rate is:
सही उत्तर: घ) 20 m³/m²/day
Surface overflow rate = Q/A = 4000/200 = 20 m³/m²/day.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A town had populations of 20,000, 24,000 and 28,000 in three successive decades. By the arithmetic increase method, the population expected in the next decade is:
सही उत्तर: ग) 32,000
The average increase per decade is 4,000, so the forecast is 28,000 + 4,000 = 32,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The daily water demand of a town of 50,000 people at a per capita demand of 135 litres per day is:
सही उत्तर: ख) 6.75 MLD
Demand = 50,000 × 135 = 6,750,000 litres/day = 6.75 million litres per day.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the California Bearing Ratio test, the standard load used to compute the CBR at 2.5 mm penetration is:
सही उत्तर: क) 1370 kg
The standard loads are 1370 kg at 2.5 mm and 2055 kg at 5.0 mm penetration; CBR = test load/standard load × 100.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The flakiness index of road aggregates is the percentage by weight of particles whose least dimension is less than:
सही उत्तर: घ) 0.6 times their mean dimension
Flaky particles have least dimension below 0.6 of the mean size; elongated particles have greatest dimension above 1.8 of the mean size.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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