What is NOT a side of the navigational triangle used in sight reduction?
A) Altitude B) Zenith distance C) Colatitude D) Polar distance E)NULL
Arşivler Sorular
If the Sun’s observed altitude is 54°30′, what is the zenith distance?
A) 35°30′ B) 45°30′ C) 12°30′ D) 14°30′ E)NULL
If you are caught in the left semicircle of a tropical storm, in the Southern Hemisphere, you should bring the wind __________.?
A) on the starboard quarter, hold course and make as much way as possible B) 2 points on the port quarter, and make as much way as possible C) on the port bow, and make as much way as possible…
The range of tide is the __________.?
A) distance the tide moves out from the shore B) difference between the heights of high and low tide C) duration of time between the high and low tide D) maximum depth of the water at high tide E)NULL
Given are the courses and speeds of 4 vessels. The navigator of which vessel would be required to know the actual time of meridian transit in order to take an accurate observation at LAN?
A) C 356°T, Sp 5 knots B) C 099°T, Sp 17 knots C) C 192°T, Sp 23 knots D) C 278°T, Sp 6 knots E)NULL
The letter D in illustration D006NG represents the __________.?
A) sensible horizon B) celestial horizon C) visible horizon D) geometrical horizon E)NULL
You are holding position above Gallipolis Lock and Dam when you hear two long blasts of the horn from the lock. This indicates that you should __________.?
A) enter the riverward lock B) hold position until two more upbound tows have locked through C) enter the landward lock D) hold position until the lower gates are closed E)NULL
The light rhythm of Morse (A) is shown on __________.?
A) preferred-channel buoys B) starboard- or port-side buoys C) special marks D) safe water buoys E)NULL
Which condition exists in the eye of a hurricane?
A) Wind rapidly changing direction B) A temperature much lower than that outside the eye C) Towering cumulonimbus clouds D) An extremely low barometric pressure E)NULL
The daily path of a celestial body that is parallel to the celestial equator is the __________.?
A) altitude circle B) vertical circle C) diurnal circle D) hour circle E)NULL