Question 1770Navigation General

The correct answer is B) GHA of 285°50'. The longitude of a position on the Earth is the same as its Greenwich Hour Angle (GHA), which is the angle between the Greenwich Meridian and the celestial meridian passing through that position. Since the given longitude is 74°10'E, the corresponding GHA would be 285°50' (360° - 74°10' = 285°50'). The other options are incorrect because: A) LHA (Local Hour Angle) is the angle between the local meridian and the celestial meridian, which is different from the GHA. C) and D) SHA (Sidereal Hour Angle) is the angle between the first point of Aries and the celestial meridian, which is not the same as the GHA.