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NAVIGATION — CH.1

Direction, Latitude and LongitudeAir Navigation — DGCA CPL practice questions

Question 1 of 2

What is the approximate compression of the Earth?

A.3%
B.0.03%
C.0.3%
D.1/3 000

All 2 questions — Direction, Latitude and Longitude

Air Navigation · DGCA CPL. The correct option is marked on each.

  1. Q1. What is the approximate compression of the Earth?

    • A.3%
    • B.0.03%
    • C.0.3%✓
    • D.1/3 000

    Why: Correct Answer: (c) 0.3% (= 1/300th)

  2. Q2. Given that the compression value of the Earth is 1/297 and the semi-major axis (equatorial radius) is 6 378.4 km, what is the semi-minor axis (polar radius)?

    • A.6 399.9 km
    • B.6 356.9 km✓
    • C.6 378.4 km
    • D.6 367.0 km

    Why: Correct Answer: (b) 6 356.9 km