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 bearing of line AB is 60° and the included angle ABC measured clockwise from BA to BC at B is 100°. What is the bearing of BC?
सही उत्तर: क) 340°
Back bearing of AB = 240°; bearing of BC = 240° + 100° = 340°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The included angle between two lines AB and AC at A is to be found from bearings of AB = 30° and AC = 110°. The angle BAC is:
सही उत्तर: ग) 80°
Included angle = 110° − 30° = 80°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a likely source of local attraction in compass surveying?
सही उत्तर: घ) Steel structures, iron pipes or electric cables nearby
Magnetic materials and currents (iron, steel, cables) near a station deflect the needle, causing local attraction.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a common use of contour maps?
सही उत्तर: क) Estimating the capacity of a reservoir
Contour maps help in reservoir capacity, catchment area, route location and intervisibility studies.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The true bearing of a line is 210° and magnetic declination is 4° West. The magnetic bearing is:
सही उत्तर: घ) 214°
True = Magnetic − West declination, so Magnetic = 210° + 4° = 214°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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On a contour map, a series of closed contours with values increasing towards the centre represents a:
सही उत्तर: घ) Hill
Closed contours with higher values inside indicate a hill; lower values inside indicate a depression.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The fore bearing of a line is S 40° E. Its back bearing is:
सही उत्तर: ग) N 40° W
In the quadrantal system, the back bearing has the same angle with opposite letters: N 40° W.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The horizontal distance between two consecutive contours on the ground is called the:
सही उत्तर: ख) Horizontal equivalent
Horizontal equivalent is the plan distance between successive contours; it varies with the steepness of the ground.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The reduced bearing of a line is N 35° W. Its whole circle bearing is:
सही उत्तर: घ) 325°
In the NW quadrant, WCB = 360° − 35° = 325°.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In levelling from a benchmark of RL 150.000 m, the sums of back sights and fore sights are 8.465 m and 10.215 m. The RL of the last point is:
सही उत्तर: क) 148.250 m
Last RL = First RL + ΣBS − ΣFS = 150.000 + 8.465 − 10.215 = 148.250 m.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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