List of top Surveying and Mapping Questions

Identify the CORRECT statement(s).

During GPS Surveying, initialization of rover receiver is required for

How many number of cells of a 30 m spatial resolution DEM would be required to cover a 1:50,000 topographic map of Survey of India, assuming that 1 minute = 1.85 km?

Two surveyors, P and Q measured a 20 m distance six times each, as given below (in m):
Surveyor P: 19.97, 20.02, 20.04, 19.98, 19.96, 20.03
Surveyor Q: 20.05, 20.07, 20.05, 20.06, 20.07, 20.07
On the basis of accuracy and precision of the measured values, choose the CORRECT statement.

Identify the error, which has all the following characteristics:
(i) Caused by observer’s misunderstanding and carelessness
(ii) Reading an angle counter-clockwise, but recording it as clockwise angle
(iii) Sighting the wrong target
(iv) Poor judgment by the observer