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

131. The usual sequence of surveys for a new road or canal route is:

     कPreliminary survey, location survey and reconnaissance खLocation survey, reconnaissance and preliminary survey गReconnaissance, preliminary survey and location (final) survey घCadastral survey, topographic survey and reconnaissance
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

132. The Weisbach triangle method is used in tunnel and mine surveying to:

     कMeasure the depth of the shaft खTransfer the surface alignment underground through a vertical shaft using two plumb wires गVentilate the tunnel घFind the magnetic declination underground
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

133. Slope stakes in road or canal construction are set out to mark:

     कThe points where the side slopes of a cutting or embankment meet the natural ground खThe centre line of the road गThe benchmarks along the route घThe location of culverts
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

134. In setting out the foundation trenches of a building by the centre line method:

     कA plane table is used to draw the plan on site खOnly the outer face of the walls is marked गThe trenches are excavated first and then measured घThe centre lines of walls are marked first, and trench widths are set out on either side of them
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

135. If each of n observations of a quantity has unit weight, the weight of their arithmetic mean is:

     क√n ख1/n गn घ1
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

136. The principle of least squares used in the adjustment of survey observations states that the most probable values are those for which:

     कThe sum of the residuals is a maximum खThe sum of the squares of the residuals is a minimum गAll residuals are equal घThe largest residual is zero
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

137. In surveying, 'accuracy' refers to:

     कThe closeness of a measurement to the true value खThe closeness of repeated measurements to each other गThe number of decimal places in a reading घThe speed of taking observations
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

138. In GIS, 'metadata' means:

     कData collected by GPS only खData stored in raster form गThe attribute table of a polygon layer घData describing a dataset, such as its source, date, accuracy and coordinate system
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

139. Georeferencing a scanned map or image in GIS means:

     कReducing its file size खChanging its colour scheme गAssigning real-world coordinates to it using control points घAdding a legend and title
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।

140. In GIS, an 'overlay' operation is used to:

     कDraw a zone at fixed distance around a feature खCombine two or more spatial layers to produce new information, e.g. land use within flood zones गChange the map projection घPrint a map at a larger scale
     💬 टिप्पणी / गल्ती रिपोर्ट (०)

     छलफल / प्रश्न उत्तरमा गल्ती छ

     पठाउनुहोस्

     टिप्पणी जाँचपछि मात्र देखिन्छ।