सर्भेक्षण – Surveying MCQ
सर्भेक्षण – सिभिल इन्जिनियरिङ
Surveying · Civil Engineering · १,५६५ प्रश्न
१,५६५ प्रश्न उपलब्ध। मोड छान्नुहोस्:
सर्भेक्षण: 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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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)
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In a closed levelling circuit, the closing error is normally distributed among the points:
सही उत्तर: ग) In proportion to their distance (or number of set-ups) from the starting benchmark
Since errors accumulate with distance, the correction applied to each point is proportional to the distance or number of set-ups from the start.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In levelling, a larger staff reading on a point compared with another, from the same instrument set-up, means that the point is:
सही उत्तर: ग) Lower
The line of sight is horizontal at one height, so the further down it meets the staff (larger reading), the lower the ground point is.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ranging rods used for marking survey stations are usually of length:
सही उत्तर: घ) 2 m or 3 m
Ranging rods are commonly 2 m or 3 m long, circular in section, with a pointed iron shoe at the lower end.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 'swing offset' in chain surveying is taken by:
सही उत्तर: ख) Swinging the tape about the object point and finding the shortest distance to the chain line
The perpendicular from a point is the shortest distance, found by swinging the tape until the reading on the chain line is minimum.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A chain is tested before use by:
सही उत्तर: घ) Comparing it with a standard length (test gauge) marked on the ground
Chains are checked against a test gauge established with a standard steel tape and adjusted if too long or too short.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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For laying sewers to a given gradient, sight rails are fixed at the ends of a section and the invert levels are checked with a:
सही उत्तर: क) Boning rod (traveller)
A boning rod of fixed length sighted between sight rails shows whether the trench bottom or pipe invert is at the required gradient.
💬 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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