Which of the following is not a good object to use as a datum point?
A) Parked heavy equipment (e.g., bulldozer)
B) Corner of building
C) Large tree
D) USGS bench mark

Question

Quizplus · Accepted Answer

Parked heavy equipment can be temporary and may move, making it an unreliable datum point. The best choice(s) would be D, USGS bench mark, as it is a permanent and precisely measured point.

Which of the Following Is Not a Good Object to Use