इन्जिनियरिङ सेवा असिस्टेन्ट सब-इन्जिनियर (चौथो तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – असिस्टेन्ट सब-इन्जिनियर (चौथो तह)
Assistant Sub-Engineer – 4th Level · Engineering Service
१,९४० प्रश्न उपलब्ध। मोड छान्नुहोस्:
प्राविधिक पत्र: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ५ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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In an isolated RCC column footing, the critical section for one-way shear is taken at:
सही उत्तर: क) A distance d (effective depth) from the face of the column
IS 456 checks one-way shear at d from the column face and punching shear at d/2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a singly reinforced balanced RCC section with Fe 415 steel, Mu,lim = 0.138 fck b d². For M20, b = 230 mm and d = 450 mm, Mu,lim is about:
सही उत्तर: ख) 128.5 kNm
Mu,lim = 0.138 × 20 × 230 × 450² ≈ 128.5 × 10⁶ Nmm = 128.5 kNm.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In limit state design as per IS 456, the total compressive force in concrete for a rectangular section with neutral axis depth xu is:
सही उत्तर: ग) 0.36 fck b xu
The area of the IS 456 stress block gives a resultant compression of 0.36 fck b xu.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the working stress method (IS 456), the modular ratio m is taken as 280/(3σcbc). For M20 concrete (σcbc = 7 N/mm²), m is about:
सही उत्तर: ख) 13.33
m = 280 / (3 × 7) = 13.33.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the final deflection of a flexural member due to all loads including long-term effects should not normally exceed:
सही उत्तर: ग) Span/250
IS 456 limits the final deflection to span/250.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the development length Ld of a bar of diameter φ is given by:
सही उत्तर: घ) φσs/(4τbd)
Equating bar force (πφ²/4)σs to bond force (πφ Ld)τbd gives Ld = φσs/(4τbd).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the maximum spacing of vertical stirrups in a beam is:
सही उत्तर: क) 0.75d or 300 mm, whichever is less
IS 456 limits vertical stirrup spacing to 0.75d or 300 mm, whichever is smaller.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A slab supported on all four edges is designed as a one-way slab when the ratio of longer span to shorter span is:
सही उत्तर: ख) Greater than 2
When ly/lx > 2 the load is carried mainly in the short direction, so it acts as one-way.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the minimum reinforcement in a slab using HYSD (high yield strength deformed) bars is:
सही उत्तर: ख) 0.12% of gross cross-sectional area
Slabs need 0.12% for HYSD bars and 0.15% for mild steel bars.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the basic span to effective depth ratio for a simply supported beam (span up to 10 m) is:
सही उत्तर: ख) 20
Basic ratios are 7 for cantilever, 20 for simply supported and 26 for continuous beams.
💬 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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