सर्भेक्षण – Surveying MCQ

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

321. For a simple circular curve of radius 200 m and deflection angle 60°, the apex distance R(sec Δ/2 − 1) is about:

     क30.9 m ख26.8 m ग115.5 m घ57.7 m
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

322. Trilateration differs from triangulation in that, in trilateration:

     कOnly one angle is measured खNo base line is used and nothing is measured गOnly compass bearings are used घThe lengths of the sides of triangles are measured (e.g. by EDM) instead of mainly angles
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

323. Spherical excess in a spherical triangle amounts to about 1 second for every:

     क196 km² of area ख19.6 km² of area ग1960 km² of area घ1 km² of area
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

324. In triangulation, the 'phase correction' is applied because:

     कOne side of a cylindrical signal is illuminated by the sun, so the observer bisects the bright part rather than the centre खThe earth is curved गThe base line expands with temperature घThe theodolite circle has graduation errors
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

325. In triangulation, a satellite station is used when:

     कThe base line is too long खThe triangle is well conditioned गThe main station cannot be occupied by the instrument although it can be sighted घThe signals are invisible from all stations
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

326. A major limitation of plane table surveying is that it:

     कIs unsuitable in wet or windy weather and in thickly wooded country खRequires a field book for all measurements गCannot be used for small-scale mapping घCannot plot details in the field
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

327. In resection by plane table, when the back rays from three known points do not meet at one point, the small triangle formed is called the:

     कTriangle of error खWell-conditioned triangle गStrength of figure घBase net
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

328. The 'two-point problem' in plane tabling is to locate the station occupied by the plane table from:

     कThree visible plotted points खOne plotted point and a compass गTwo visible, already plotted points, using an auxiliary station घA single ray
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

329. In stadia tacheometry with an inclined line of sight θ and a vertical staff, the vertical component V is given by:

     कV = ½ Ks sin 2θ + C sin θ खV = Ks cos²θ + C cos θ गV = Ks tan θ घV = Ks + C
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

330. Tacheometric surveying is particularly suitable for:

     कMeasuring very precise base lines खUnderground mine shafts only गSetting out building foundations घRough, hilly or broken ground where chaining is difficult
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।