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 minimum shear reinforcement in a beam in the form of stirrups is given by Asv/(b·sv) ≥:
सही उत्तर: ग) 0.4/(0.87 fy)
Clause 26.5.1.6 requires Asv/(b sv) ≥ 0.4/(0.87 fy), so that minimum stirrups prevent sudden shear failure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the limit state method of IS 456, the ultimate axial load capacity of a short axially loaded column (with minimum eccentricity allowance) is:
सही उत्तर: क) Pu = 0.4 fck Ac + 0.67 fy Asc
IS 456 clause 39.3 gives Pu = 0.4 fck Ac + 0.67 fy Asc, where Ac is the net concrete area and Asc the area of longitudinal steel.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the strength of a short column with adequate helical (spiral) reinforcement is taken as how many times the strength of a similar column with lateral ties?
सही उत्तर: घ) 1.05
IS 456 clause 39.4 allows 1.05 times the strength of a similar member with lateral ties, provided the helix meets the specified volume ratio.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For punching (two-way) shear in a column footing, the critical perimeter is taken at a distance of:
सही उत्तर: ख) d/2 from the column face
IS 456 takes the critical section for punching shear at d/2 from the periphery of the column.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the design of an isolated RCC footing, the critical section for one-way (beam) shear is taken at:
सही उत्तर: ग) A distance d from the face of the column
One-way shear is checked at a section located at a distance equal to the effective depth d from the face of the column.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the lap length (including anchorage value of hooks) for bars in flexural tension shall be:
सही उत्तर: क) Ld or 30φ, whichever is greater
IS 456 requires lap length in flexural tension of Ld or 30φ, whichever is greater (2Ld or 30φ in direct tension).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the working stress method of IS 456, the modular ratio m is taken as:
सही उत्तर: घ) 280/(3σcbc)
IS 456 specifies m = 280/(3σcbc), where σcbc is the permissible compressive stress in concrete in bending; it partly accounts for long-term creep.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the maximum spacing of vertical stirrups in a beam shall not exceed:
सही उत्तर: ग) 0.75d or 300 mm, whichever is less
IS 456 limits the spacing of vertical stirrups to 0.75d or 300 mm, whichever is less, where d is the effective depth.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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As per IS 456:2000, the effective flange width of a T-beam (monolithic with slab) is taken as the lesser of the actual width and:
सही उत्तर: ख) lo/6 + bw + 6Df
IS 456 clause 23.1.2 gives bf = lo/6 + bw + 6Df for T-beams (lo/12 + bw + 3Df for L-beams), where lo is the distance between points of zero moment.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Compared with a solid shaft of the same material, length and weight, a hollow circular shaft:
सही उत्तर: क) Can transmit a greater torque
For the same area, the hollow shaft places material farther from the axis, giving a larger polar moment of inertia and thus greater torque capacity.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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