सिभिल इन्जिनियरिङ

सिभिल इन्जिनियरिङ: प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

सही: ० / ०

2901. 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।

2902. 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।

2903. 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।

2904. 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।

2905. 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।

2906. 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।

2907. In the vector data model of GIS, geographic features are represented as:

      कPoints, lines and polygons defined by coordinates खA regular grid of cells गScanned photographs only घTables without any location
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

2908. A 'pseudorange' measured by a GPS receiver is:

      कThe height of the satellite above the geoid खThe exact geometric distance to the satellite गThe distance between two receivers घThe range computed from the signal travel time, which includes the effect of receiver clock error
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

2909. A CORS in GNSS surveying is a:

      कClosed Orbit Radar Satellite खCoordinate Origin Reference System used only in maps गContinuously Operating Reference Station that records satellite data at a fixed known point घCorrection for Optical Refraction in Surveying
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

2910. In GNSS surveying, 'multipath' error occurs when:

      कThe receiver clock is not synchronised खSatellite signals reach the antenna after reflecting from nearby surfaces such as buildings or water गSatellites are poorly distributed in the sky घThe signal is delayed in the ionosphere
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।