Interview Questions and Answers

Diopter is the power of a lens having a focal length of 1 meter.

• Diopter is the reciprocal of the focal length of a lens in meters.

• It is used to measure the optical power of a lens.

• For example, a lens with a focal length of 0.5 meters has a power of 2 diopters.

The accuracy of fix by two point problem is dependent on the distance between the two points and the quality of the measurements taken.

• The accuracy of the fix increases as the distance between the two points increases.

• The accuracy also depends on the precision of the measurements taken at each point.

• Errors in measurements or inaccuracies in the data can affect the accuracy of the fix.

• Using more than two points can improve the accuracy of the fix.

Hydrographic surveys deal with the mapping of underwater features and terrain.

• Underwater features such as the seabed, shorelines, and water depths are mapped.

• Data collected is used for navigation, marine construction, resource exploration, and environmental protection.

• Techniques used include sonar, GPS, and satellite imagery.

• Examples include mapping of ocean floors, riverbeds, and coastal areas.

An ideal vertical curve to join two gradients is a parabolic curve.

• A parabolic curve provides a smooth transition between two gradients

• It ensures a gradual change in slope, reducing the risk of sudden changes in elevation

• The length and radius of the curve can be calculated based on design standards and the specific site conditions

Surveying is the process of determining the relative positions of points on the Earth's surface for mapping and construction purposes.

• Surveying helps in creating accurate maps and plans for construction projects.

• It is used to establish property boundaries and land ownership.

• Surveying is essential for infrastructure development such as roads, bridges, and buildings.

• It also plays a crucial role in disaster management and environmental conservation.

• Surveying can involve using to...read more

A synonym for surveyor is land surveyor, a professional who measures and maps the land for various purposes.

• Land surveyor is a common alternative term for surveyor

• Surveyors use specialized equipment like total stations and GPS to accurately measure land

• Surveyors work in various industries such as construction, real estate, and urban planning

The principal of surveying involves accurately measuring and mapping the land and its features.

• Surveying involves determining the relative positions of points on the Earth's surface.

• It includes measuring distances, angles, and elevations to create maps and plans.

• Surveying is essential for construction, engineering, and land development projects.

• Modern surveying techniques use advanced technology like GPS and drones.

• Errors in surveying can lead to costly mistakes in constructi...read more