सर्भेक्षण – Surveying MCQ

सर्भेक्षण: प्रश्न र उत्तर

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सही: ० / ०

281. A horizontal angle is measured by repetition 6 times starting from 0°00'00". The final reading, with no complete revolution of the plates, is 120°03'00". The value of the angle is:

     क20°03'00" ख20°00'30" ग120°03'00" घ20°00'05"
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

282. The spire test in theodolite adjustment is used to make:

     कThe plate level axis perpendicular to the vertical axis खThe vertical circle read zero when the telescope is horizontal गThe line of sight parallel to the bubble axis घThe horizontal (trunnion) axis perpendicular to the vertical axis
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     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

283. In a transit theodolite, the verniers of the vertical circle are carried by the:

     कLevelling head खTrivet गIndex frame (T-frame) घLower plate
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     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

284. Which statement about contour lines is correct?

     कEvery contour line closes on itself, either within or outside the limits of the map खA contour line may end abruptly in the middle of a map गContour lines are always straight घA single contour can split into two contours of the same value
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

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285. A Ghat tracer (or De Lisle's clinometer) is used for:

     कLocating points along a line of uniform gradient on hill slopes खMeasuring horizontal angles precisely गMeasuring water depths घCentring a plane table
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

286. The radial line method of indirect contouring, in which spot levels are taken along lines radiating from a central point, is best suited to:

     कHilly areas such as a conical hill खFlat areas with little relief गLong narrow strips such as roads घUnderwater surveys
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     टिप्पणी जाँचपछि मात्र देखिन्छ।

287. In the direct method of contouring:

     कSpot levels at grid corners are taken and contours are interpolated खContours are traced from aerial photographs only गPoints lying exactly on selected contours are located on the ground and then plotted घContours are drawn by joining ridge and valley lines
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     छलफल / प्रश्न उत्तरमा गल्ती छ

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288. Where there is a vertical cliff, contour lines on a map:

     कForm closed loops with increasing values inward खBecome widely spaced गCross each other घCoincide and appear as a single line
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289. Whether two points are intervisible can be checked from a contour map by:

     कCounting the number of contours on the map खDrawing the ground profile (section) along the line joining them गMeasuring the area enclosed by the contours घFinding the bearing of the line
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290. The hypsometer determines the altitude of a place by measuring:

     कThe boiling point of water at that place खThe vertical angle to a known peak गThe magnetic dip घThe length of a pendulum
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     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।