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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In the Universal Transverse Mercator (UTM) system, the scale factor on the central meridian of each zone is:
सही उत्तर: ग) 0.9996
UTM applies a scale factor of 0.9996 at the central meridian so that scale error is distributed across the 6° zone.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Mercator projection is widely used for navigation charts because it is:
सही उत्तर: ख) Conformal, so that lines of constant bearing appear as straight lines
Mercator preserves angles (conformal), so rhumb lines plot as straight lines, though areas are exaggerated near the poles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The reference ellipsoid traditionally used for the geodetic datum of Nepal is the:
सही उत्तर: क) Everest 1830 ellipsoid
Nepal's national geodetic datum is based on the Everest (1830) ellipsoid, inherited from the Survey of India.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Nepal's national maps use the Modified UTM (MUTM) projection, in which each zone has a width of:
सही उत्तर: घ) 3° of longitude
MUTM in Nepal uses 3° zones with central meridians at 81°, 84° and 87° E, reducing scale distortion compared with 6° UTM zones.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The longitude of a place is:
सही उत्तर: ग) The angle measured along the equator between the prime meridian and the meridian of the place
Longitude is measured east or west of the Greenwich (prime) meridian; latitude is measured from the equator.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A Laplace station in a triangulation network is a station at which:
सही उत्तर: ख) Astronomical azimuth and longitude are observed to control the azimuths of the network
Laplace stations provide astronomical azimuth checks that prevent the accumulation of azimuth errors in triangulation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In setting out a simple circular curve by Rankine's method, the total deflection angle from the back tangent to the point of tangency equals:
सही उत्तर: क) Half the deflection angle of the curve (Δ/2)
The tangential angle to any point is half the central angle, so for the end of the curve it is Δ/2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A vertical curve provided where an ascending gradient meets a descending gradient is called a:
सही उत्तर: घ) Summit curve
A summit (crest) curve is convex upwards; a valley (sag) curve is formed where a falling grade meets a rising grade.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The length of a transition curve is often found from L = v³/(C R). For v = 20 m/s, C = 0.5 m/s³ and R = 400 m, the length is:
सही उत्तर: ग) 40 m
L = 20³/(0.5 × 400) = 8000/200 = 40 m, where C is the rate of change of radial acceleration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In setting out a circular curve by offsets from chords produced, with full chords of 20 m and a radius of 200 m, the offset for each full chord after the first is:
सही उत्तर: ख) 2.0 m
For full chords, the offset = c²/R = 20²/200 = 2.0 m (the first chord offset is c²/2R).
💬 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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