इन्जिनियरिङ सेवा सब-इन्जिनियर (पाँचौँ तह) – प्राविधिक पत्र
इन्जिनियरिङ सेवा – सब-इन्जिनियर (पाँचौँ तह)
Sub-Engineer – 5th 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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On a vertical aerial photograph, relief displacement of the image of a tall object occurs:
सही उत्तर: ग) Radially outward from the principal point (nadir) for points above the datum
Objects above the datum are displaced radially away from the nadir/principal point, the amount increasing with height and radial distance.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In aerial photography for mapping, the usual side (lateral) overlap between adjacent flight strips is about:
सही उत्तर: ग) 25% to 30%
Forward overlap is about 60% for stereo coverage, while side overlap between strips is usually about 25–30%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The geoid is best described as:
सही उत्तर: घ) The equipotential surface of the earth's gravity that approximates mean sea level extended under the continents
The geoid is the gravity-defined level surface closest to mean sea level; orthometric heights are measured from it.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Differential GPS (DGPS) improves positional accuracy by:
सही उत्तर: घ) Applying corrections computed at a reference station of known position to the rover's observations
A base station at a known point calculates errors in GPS signals and transmits corrections to nearby receivers.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Galileo is the global navigation satellite system developed by:
सही उत्तर: ग) The European Union
Galileo is Europe's GNSS; GLONASS is Russian, BeiDou is Chinese and GPS is from the USA.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The 'zero circle' of a polar planimeter is the circle along which the tracing point moves:
सही उत्तर: घ) Without any rotation of the measuring wheel
Along the zero circle the wheel slides without rolling; its area is added when the anchor point is inside the figure.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a mass haul diagram for earthwork, a rising curve (ordinates increasing along the chainage) indicates:
सही उत्तर: ग) Excavation (cutting)
Mass haul ordinates are cumulative volumes with cut positive, so a rising curve represents cutting and a falling curve filling.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the spot level (borrow pit) method of computing volume over a grid of equal rectangles of area A, the volume is:
सही उत्तर: क) (A/4)(Σh1 + 2Σh2 + 3Σh3 + 4Σh4), where hn are depths common to n rectangles
Each corner depth is weighted by the number of rectangles it belongs to, and the total is multiplied by A/4.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ordinates of 2, 3, 4, 5 and 6 m are taken at equal intervals along a 40 m base line. By the average ordinate rule, the area is:
सही उत्तर: ख) 160 m²
Average ordinate = (2+3+4+5+6)/5 = 4 m; area = 4 × 40 = 160 m².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Using the approximate formula offset = x²/(2R), the perpendicular offset from the tangent at 20 m from the tangent point for a curve of radius 200 m is:
सही उत्तर: ख) 1.0 m
Offset = 20² / (2 × 200) = 400 / 400 = 1.0 m.
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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