In geodesy and cartography, which single statement always holds true for places that have the same geographic latitude?

Civil Engineering Advanced Surveying Difficulty: Easy
Choose an option
  • A
    They lie on the same parallel of latitude.
  • B
    They lie on the same meridian.
  • C
    They are equidistant from both poles.
  • D
    They have identical local solar time at any instant.
  • E
    They have the same longitude.

Answer

Correct Answer: They lie on the same parallel of latitude.

Explanation

Introduction / Context:Latitude and longitude define positions on Earth. Questions often test whether candidates can distinguish what “same latitude” guarantees versus what it does not (e.g., meridian or time).

Given Data / Assumptions:

  • Latitude is angular distance north or south of the equator.
  • Parallels are circles of constant latitude.
  • Local solar time depends primarily on longitude, not latitude.

Concept / Approach:Any two points with the same latitude lie on the same parallel, a small circle parallel to the equator. This is the only universally true statement among common misconceptions about meridians and time.

Step-by-Step Solution:1) By definition, “same latitude” ⇒ same parallel.2) Meridians are lines of constant longitude; same latitude does not imply same longitude.3) Equal local solar time requires equal longitude, not latitude.4) Being equidistant from both poles is only true at the equator; elsewhere distances differ.

Verification / Alternative check:On a globe, draw any parallel (say 30°N); cities along it share that latitude but span many longitudes and time zones.

Why Other Options Are Wrong:Option B/E: Same latitude does not fix longitude or meridian.Option C: Only the equator is equidistant from both poles.Option D: Local solar time varies with longitude.

Common Pitfalls:Assuming shared climate or time zones from latitude alone; these depend on longitude and other factors.

Final Answer:They lie on the same parallel of latitude.

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