सर्भेक्षण – Surveying MCQ

सर्भेक्षण: प्रश्न र उत्तर

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सही: ० / ०

181. An open traverse is considered less satisfactory than a closed traverse because:

     कIt provides no check on the accuracy of the field work खIt always requires more stations गIt cannot be plotted घIt can only be run with a compass
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

182. In a closed traverse, the algebraic sum of the deflection angles (right positive, left negative) should be:

     क(2n − 4) × 90° ख180° ग0° घ360°
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

183. The 'prism constant' entered in a total station corrects for:

     कThe earth's curvature खAtmospheric temperature and pressure गThe offset between the effective reflection centre of the prism and its plumb (centring) point घThe height of the instrument above the station
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

184. The 'resection' (free station) program of a total station allows the surveyor to:

     कMeasure the area of a plot automatically खCompute the coordinates of an unknown instrument station by observing to known points गConvert slope distances to chainages घCalibrate the EDM against a base line
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

185. The first permanent adjustment of a transit theodolite is to make:

     कThe axes of the plate levels perpendicular to the vertical axis खThe line of collimation perpendicular to the horizontal axis गThe horizontal axis perpendicular to the vertical axis घThe altitude bubble axis parallel to the line of collimation
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

186. Errors in horizontal angles due to inaccurate graduation of the horizontal circle are minimised by:

     कLevelling the instrument more carefully खTaking face left readings only गReading only one vernier घMeasuring the angle several times on different parts of the circle
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

187. In a vernier theodolite, error due to eccentricity of the verniers is eliminated by:

     कKeeping sights equal खMeasuring the angle once on face left only गReading the two verniers and averaging them घUsing a longer telescope
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

188. In theodolite work, 'swinging the telescope right' means:

     कTurning it anticlockwise about the vertical axis खTurning it clockwise about the vertical axis गRotating it about the horizontal axis through 180° घTilting it slightly with the foot screws
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

189. Two theodolite stations A and B are in line with a tower and B is 20 m farther from the tower than A. The angles of elevation of the top from A and B, at the same instrument height, are 45° and 30°. The height of the top above the instrument axis is about:

     क27.3 m ख20.0 m ग34.6 m घ11.5 m
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

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     टिप्पणी जाँचपछि मात्र देखिन्छ।

190. For precise (geodetic) levelling, the staff commonly used has its graduations on a strip of:

     कPlastic tape खOrdinary wood गCopper घInvar, which has a very low coefficient of thermal expansion
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।