SURCON Professional Practice Questions - SURCON Professional Examination - Surveyor Exam

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What are the geometric parameters of the Clarke 1880 (Modified) ellipsoid used as the reference surface for the Minna Datum in Nigeria?

Semi-major axis a = 6,378,249.145 m, inverse flattening 1/f = 293.465 Semi-major axis a = 6,378,137.000 m, inverse flattening 1/f = 298.257 Semi-major axis a = 6,378,206.400 m, inverse flattening 1/f = 294.979 Semi-major axis a = 6,378,388.000 m, inverse flattening 1/f = 297.000

Correct Answer:

Semi-major axis a = 6,378,249.145 m, inverse flattening 1/f = 293.465

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