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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As per IS 456:2000, the diameter of reinforcing bars in a slab should not exceed:
सही उत्तर: ख) One-eighth of the total thickness of the slab
IS 456 limits the bar diameter in slabs to one-eighth of the total slab thickness.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, side face reinforcement must be provided in a beam when the depth of its web exceeds:
सही उत्तर: ग) 750 mm
IS 456 requires side face reinforcement of 0.1% of the web area, distributed equally on both faces, where the web depth exceeds 750 mm.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A reinforced concrete beam section in which the tension steel yields before the concrete reaches its limiting compressive strain is called:
सही उत्तर: घ) An under-reinforced section
In an under-reinforced section the steel yields first, giving ductile failure with warning; codes require design as under-reinforced.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the limit state of collapse to IS 456, the partial safety factor applied to the combination of dead load and imposed load is:
सही उत्तर: घ) 1.5
For DL + IL at the limit state of collapse, IS 456 Table 18 specifies a load factor of 1.5 on both loads.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a singly reinforced rectangular beam with Fe 415 steel designed to IS 456, the limiting moment of resistance Mu,lim is approximately:
सही उत्तर: क) 0.138 fck b d²
Mu,lim = 0.36 fck b xu,max (d − 0.42 xu,max); with xu,max = 0.48d this gives about 0.138 fck b d² (about 0.148 for Fe 250 and 0.133 for Fe 500).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For Fe 500 grade reinforcement, the limiting depth of neutral axis ratio xu,max/d in limit state design to IS 456 is:
सही उत्तर: ख) 0.46
IS 456 gives xu,max/d = 0.53 for Fe 250, 0.48 for Fe 415 and 0.46 for Fe 500.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An activity has a normal duration of 10 days at Rs 20,000 and a crash duration of 6 days at Rs 28,000. Its cost slope is:
सही उत्तर: ग) Rs 2,000 per day
Cost slope = (crash cost − normal cost)/(normal time − crash time) = (28,000 − 20,000)/(10 − 6) = Rs 2,000 per day.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In CPM, the interfering float of an activity is equal to its:
सही उत्तर: ग) Total float minus free float
Interfering float = total float − free float; it is the part of the float whose use delays the start of following activities.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A simply supported beam of span L has plastic moment capacity Mp. The collapse load for a single point load at mid-span is:
सही उत्तर: घ) 4Mp/L
Collapse occurs when the mid-span moment WL/4 reaches Mp, so Wc = 4Mp/L.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The plastic section modulus of a rectangular section of width b and depth d about its major axis is:
सही उत्तर: क) bd²/4
Zp = 2 × (b·d/2) × d/4 = bd²/4; bd²/6 is the elastic section modulus.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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