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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Fly levelling is carried out to:
सही उत्तर: ग) Quickly carry levels to an approximate value or check the levels of benchmarks, without intermediate sights
Fly levelling is rapid levelling using only back and fore sights, used for reconnaissance or checking.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The height of instrument is 101.500 m. A staff held inverted against the ceiling of a tunnel reads 2.000 m. The RL of the ceiling point is:
सही उत्तर: घ) 103.500 m
For an inverted staff, RL = HI + reading = 101.500 + 2.000 = 103.500 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A digital level reads the staff automatically by using:
सही उत्तर: ग) A bar-coded staff and electronic image processing
Digital levels capture the bar-code pattern of a special staff and compute the reading and distance electronically.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a wye (Y) level, the telescope:
सही उत्तर: क) Rests in Y-shaped supports from which it can be removed and reversed end for end
The wye level's telescope can be lifted out and reversed, which makes testing of adjustments easy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a tilting level, the telescope:
सही उत्तर: ग) Can be tilted slightly about a horizontal axis by a tilting screw, independent of the vertical axis
The tilting screw allows the bubble to be centred quickly for each sight without precise levelling of the vertical axis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A benchmark established at the end of a day's work so that levelling can be continued from it the next day is a:
सही उत्तर: ग) Temporary benchmark
Temporary benchmarks are set on firm objects at stopping points to carry the work forward.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Highly precise benchmarks established at intervals throughout a country by the national survey organisation are called:
सही उत्तर: घ) Great Trigonometrical Survey (GTS) benchmarks
GTS benchmarks are established with very high precision by the national survey authority and serve as reference for other levelling.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A level surface in surveying is a surface that is:
सही उत्तर: ख) Everywhere perpendicular to the direction of gravity (the plumb line), like the surface of still water
A level surface is curved, following the mean spheroidal shape of the earth, and is normal to the plumb line at every point.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In plane table surveying, the trough compass is used to:
सही उत्तर: ग) Orient the plane table along the magnetic meridian
The trough compass provides an approximate orientation of the table with respect to magnetic north.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The true bearing of a line is 75° and the magnetic declination at the place is 5° East. The magnetic bearing of the line is:
सही उत्तर: घ) 70°
True bearing = magnetic bearing + east declination, so magnetic bearing = 75° − 5° = 70°.
💬 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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