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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The whole circle bearing of a line is 135°. Its quadrantal (reduced) bearing is:
सही उत्तर: ख) S 45° E
A WCB between 90° and 180° lies in the SE quadrant; reduced bearing = 180° − 135° = S 45° E.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A surveyor's compass reads bearings in the:
सही उत्तर: घ) Quadrantal (reduced) bearing system
The surveyor's compass gives quadrantal bearings (N/S, angle, E/W), whereas the prismatic compass gives whole circle bearings.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The magnetic needle has zero dip (rests horizontal) at the:
सही उत्तर: ख) Magnetic equator
Dip is zero at the magnetic equator and increases to 90° at the magnetic poles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The variation in magnetic declination that occurs during the course of a day is called:
सही उत्तर: ग) Diurnal variation
Diurnal (daily) variation is a small regular change in declination over 24 hours.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The slow, long-period change in magnetic declination extending over centuries is called:
सही उत्तर: घ) Secular variation
Secular variation is the large, slow swing of declination over long periods, the most important variation for old survey records.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The line joining places where the magnetic declination is zero is called the:
सही उत्तर: घ) Agonic line
Along the agonic line the magnetic and true meridians coincide, so declination is zero.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Lines joining points of equal magnetic dip on a map are called:
सही उत्तर: ख) Isoclinic lines
Isoclinic lines connect points with equal dip; isogonic lines connect points with equal declination.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Electronic distance measurement (EDM) instruments commonly determine distance by:
सही उत्तर: ख) Comparing the phase of a modulated electromagnetic wave sent to and reflected back from a target
EDM transmits a modulated carrier (microwave, infrared or light) and measures the phase difference of the returned signal to compute the distance.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A line ranger is an instrument used for:
सही उत्तर: क) Locating a point on a survey line between two ranging rods without going to the ends
A line ranger has two reflecting prisms/mirrors; when images of both end rods coincide, the observer is on the line.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An area was computed as 1000 m² using a chain that was later found to be 0.5% too long. The true area is approximately:
सही उत्तर: घ) 1010 m²
True area = measured area × (actual length/nominal length)² = 1000 × (1.005)² ≈ 1010 m².
💬 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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