Rail Vikas Nigam Surveyor Interview Questions, Process, and Tips

The least count of an instrument refers to the smallest measurement that can be accurately read or recorded.

• Least count is determined by the smallest division on the instrument's scale.

• It helps in determining the precision and accuracy of measurements.

• For example, a ruler with millimeter divisions has a least count of 1 mm.

• A theodolite with a vernier scale may have a least count of 20 seconds of arc.

Surveying is the practice of measuring and mapping the physical and man-made features of the land.

• Surveying involves using specialized equipment to measure distances, angles, and elevations.

• It is used in a variety of industries, including construction, engineering, and land development.

• Examples of surveying projects include creating topographic maps, determining property boundaries, and designing roads and buildings.

• Su...read more

The basic principle of surveying is to measure and map the physical features of the earth's surface.

• Surveying involves measuring and mapping the physical features of the earth's surface

• It is used to determine the location, size, and shape of land, as well as the position of natural and man-made features

• Surveying is essential for construction, engineering, and mapping purposes

• It involves the use of various instruments s...read more

The basic principles of surveying involve locating a point on the ground using at least two reference points and working from whole to part.

• Surveying involves determining the position of points on the earth's surface.

• The process begins by selecting at least two reference points and using them to locate the point of interest.

• Surveyors work from whole to part, starting with the larger area and then moving on to smaller d...read more

Scale is the ratio of the size of an object on a map to its actual size in the real world.

• Scale is used in cartography to represent the relationship between the size of an object on a map and its actual size in the real world.

• It is usually expressed as a ratio or a fraction, such as 1:10,000 or 1/10,000.

• The larger the denominator, the smaller the scale and the more detail can be shown on the map.

• For example, a map with...read more

Reconnaissance is the preliminary survey of an area to gather information for planning and decision-making.

• It involves collecting data on the terrain, vegetation, and other features of the area.

• It helps in identifying potential problems and opportunities for the project.

• It is usually done before the actual survey work begins.

• Examples include aerial photography, satellite imagery, and ground-based surveys.