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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A drop manhole is provided in a sewerage system where:
सही उत्तर: क) A branch sewer joins a main sewer at a considerably higher level
A drop manhole carries the incoming sewer down through a vertical drop pipe, avoiding the steep gradient or splashing in the manhole.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Softening of water by the base exchange process uses:
सही उत्तर: ख) Zeolites
In base exchange, sodium zeolite exchanges its sodium for the calcium and magnesium ions causing hardness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When chlorine is added to water, which species is the most effective disinfectant?
सही उत्तर: ग) Hypochlorous acid (HOCl)
HOCl is about 80-100 times more effective than OCl⁻, which is why chlorination is more effective at lower pH.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Aeration in water treatment is mainly used to:
सही उत्तर: घ) Remove dissolved gases such as CO2 and H2S and oxidise iron and manganese
Aeration strips odour-causing and corrosive gases and oxidises dissolved iron and manganese so they can be settled or filtered.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The track gauge of a broad gauge railway line as used in India is:
सही उत्तर: घ) 1676 mm
Indian broad gauge is 1676 mm (5 ft 6 in); 1435 mm is standard gauge, 1000 mm metre gauge and 762 mm a narrow gauge.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In cement concrete pavements, tie bars are provided across:
सही उत्तर: क) Longitudinal joints, to hold adjacent slabs together
Tie bars are deformed bars across longitudinal joints that prevent the lanes from separating; dowel bars at transverse joints transfer load.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Alligator (crocodile) cracking in a flexible pavement mainly indicates:
सही उत्तर: ख) Fatigue failure under repeated wheel loads, often due to a weak base or subgrade
Interconnected cracks forming a pattern like crocodile skin result from fatigue of the bituminous layer, often with inadequate support below.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In standard road signage practice followed in Nepal and South Asia, mandatory (regulatory) signs such as 'No entry' or speed limits are generally:
सही उत्तर: ग) Circular
Regulatory signs are circular, warning signs are triangular and informatory signs are rectangular; 'Stop' is the octagonal exception.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Benkelman beam is used in highway engineering to measure the:
सही उत्तर: ग) Rebound deflection of a flexible pavement under a standard axle load
The Benkelman beam measures surface deflection under a loaded truck; the rebound deflection is used to evaluate and design overlays.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Vertical curves joining two gradients on highway longitudinal profiles are usually designed as:
सही उत्तर: घ) Parabolas
A simple parabola gives a constant rate of change of grade and is easy to set out, so it is used for summit and valley curves.
💬 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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