A) Sun is over the lower branch of the reference meridian B) Sun is over the upper branch of the reference meridian C) first point of Aries is over the lower branch of the reference meridian D) first point of…
A) Personal correction B) Instrument correction C) Phase D) Dip correction E)NULL
A) Astronomical year B) Natural year C) Equinoctial year D) Sidereal year E)NULL
A) Own ship’s marker B) Echo from a ship at anchor C) Echoes from land masses D) All of the above E)NULL
A) About 90° B) About 50° C) About 25° D) About 15° E)NULL
A) C 166°T, Sp 24 knots B) C 013°T, Sp 7 knots C) C 291°T, Sp 25 knots D) C 112°T, Sp 4 knots E)NULL
A) 50 to 80 miles B) 80 to 100 miles C) 100 to 150 miles D) 150 to 250 miles E)NULL
A) The warning was issued in 1986, the 87th sequentially numbered warning and broadcast 11 times. B) This is warning number 1986 issued in 1987, and it affects sub-region 11. C) This warning is valid in 1986 and 1987 and…
A) rapid changes in GHA and declination introduce errors into the calculations B) lack of a well defined limb during certain phases and positions in the sky C) approximations used in the solution caused by the variable horizontal parallax D)…
A) low steel on the Huey P. Long Bridge B) mean sea level C) the local water table D) the minimum dam control level E)NULL