सिभिल इन्जिनियरिङ
सिभिल इन्जिनियरिङ
Civil Engineering · ५,१७१ प्रश्न
५,१७१ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सिभिल इन्जिनियरिङ: 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 triangular plot has sides of 13 m, 14 m and 15 m. Its area by Heron's formula is:
सही उत्तर: क) 84 m²
s = 21; area = √(21 × 8 × 7 × 6) = √7056 = 84 m².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In hydrographic surveying, soundings are reduced to a reference level called the:
सही उत्तर: ख) Chart datum
Chart datum is a low-water level below which the tide seldom falls, so charted depths are the minimum likely depths.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When setting out a curve by pegs at regular chainages, the first sub-chord is used so that:
सही उत्तर: घ) Pegs fall at full (whole) chainage values along the curve
Since the tangent point usually falls at an odd chainage, a short first sub-chord brings the next peg to a round chainage, after which normal chords are used.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The point of curvature of a circular curve (R = 200 m, Δ = 60°) is at chainage 890.80 m. The chainage of the point of tangency is about:
सही उत्तर: ग) 1100.24 m
Curve length = πRΔ/180 = π × 200 × 60/180 = 209.44 m; chainage of PT = 890.80 + 209.44 = 1100.24 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A metallic tape used in surveying is made of:
सही उत्तर: ख) Linen or synthetic fabric with fine brass or copper wires woven in
Metallic tapes are woven linen tapes reinforced with fine wires to reduce stretching; they are used for offsets, not precise work.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The main advantage of a graphical (bar) scale drawn on a map over a statement of scale is that:
सही उत्तर: ख) It remains correct even if the map shrinks or is enlarged/reduced in copying
Since the bar scale shrinks or enlarges with the map, distances measured with it remain correct.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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One degree of latitude on the earth's surface corresponds to a north-south distance of roughly:
सही उत्तर: घ) 111 km
The earth's circumference is about 40,000 km, so 1° of latitude ≈ 40,000/360 ≈ 111 km.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the Universal Transverse Mercator (UTM) system, each zone covers a longitude width of:
सही उत्तर: घ) 6°
UTM divides the earth into 60 zones, each 6° of longitude wide, with a transverse Mercator projection for each zone.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An orthophoto differs from an ordinary aerial photograph in that it:
सही उत्तर: क) Is corrected for tilt and relief displacement, giving a uniform scale like a map
Orthorectification removes tilt and terrain displacement, so distances and areas can be measured as on a planimetric map.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The optical plummet of a theodolite or total station is used for:
सही उत्तर: ग) Centring the instrument accurately over the station mark
The optical plummet gives a line of sight vertically downward through the vertical axis, allowing precise centring unaffected by wind.
💬 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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