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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Two cross-sections 20 m apart have areas 12 m² and 18 m². The earthwork volume by the end-area (trapezoidal) method is:
सही उत्तर: ग) 300 m³
V = L/2 (A1 + A2) = 20/2 × (12 + 18) = 10 × 30 = 300 m³.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The instrument used to measure area of a plotted figure on a map by tracing its boundary is the:
सही उत्तर: ग) Planimeter
A planimeter measures area by tracing the outline of a figure; a pantagraph copies drawings to a different scale.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The prismoidal formula for volume between cross-sections A1 and A2 a distance L apart with mid-section Am is:
सही उत्तर: घ) V = L/6 (A1 + 4Am + A2)
The prismoidal formula is V = (L/6)(A1 + 4Am + A2); the trapezoidal (end area) formula is (L/2)(A1 + A2).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The area of a triangle with base 40 m and height 25 m is:
सही उत्तर: ग) 500 m²
Area = ½ × base × height = ½ × 40 × 25 = 500 m².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The alidade used in plane tabling serves to:
सही उत्तर: क) Sight objects and draw rays along its ruling edge
The alidade is a sighting rule; rays to objects are drawn along its fiducial edge. Orientation by magnet uses a trough compass.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A transition curve is inserted between a straight and a circular curve mainly to:
सही उत्तर: ख) Introduce curvature and superelevation gradually
A transition curve gradually changes radius from infinity to R, allowing smooth introduction of centrifugal force and superelevation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Plane table surveying is a method in which:
सही उत्तर: क) Field observations and plotting are done simultaneously
In plane tabling, the map is plotted in the field as observations are made, so no field book is needed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Rankine's method of setting out a circular curve uses:
सही उत्तर: क) Tangential (deflection) angles with a theodolite and a chain or tape
Rankine's method sets out successive chords using deflection angles from the tangent measured with a theodolite plus chord lengths.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For a simple circular curve of radius R and deflection angle Δ, the length of the long chord is:
सही उत्तर: क) 2R sin(Δ/2)
Long chord = 2R sin(Δ/2); R tan(Δ/2) is tangent length and R(1 − cos(Δ/2)) is mid-ordinate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The degree of a curve (arc definition) is the angle subtended at the centre by an arc of standard length. As the radius increases, the degree of curve:
सही उत्तर: ख) Decreases
Degree of curve is inversely proportional to radius; flatter curves (larger R) have smaller degree.
💬 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।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।