An important lunar cycle affecting the tidal cycle is called the nodal period. How long is this cycle?
A) 16 days B) 18 days C) 6 years D) 19 years E)NULL
Arşivler Sorular
Deviation is caused by __________.?
A) changes in the earth’s magnetic field B) nearby magnetic land masses or mineral deposits C) magnetic influence inherent to that particular vessel D) the magnetic lines of force not coinciding with the lines of longitude E)NULL
Which statement concerning illustration D010NG is correct? (Soundings and heights are in meters)?
A) Maury Lightship swings about her anchor on a circle with a 21-meter diameter. B) The sunken wreck southwest of Beito Island shows the hull or superstructure above the sounding datum. C) There is a 12-meter deep hole inside the…
With regard to GPS, a civilian receiver will have the same accuracy as a military receiver if __________.?
A) selective availability is set to zero B) the satellites are all below 15° in elevation C) your vessel is equipped with a Doppler receiver D) horizontal dilution of presion is high E)NULL
In order to insure that a RACON signal is displayed on the radar, you should __________.?
A) increase the brilliance of the PPI scope B) turn off the interference controls on the radar C) use the maximum available range setting D) increase the radar signal output E)NULL
The Light List indicates that a light has a nominal range of 13 miles and is 36 feet high (11.0 meters). If the visibility is 7.0 miles and your height of eye is 25 feet (7.6 meters), at what approximate distance will you sight the light?
A) 10.0 miles B) 12.9 miles C) 14.2 miles D) 17.0 miles E)NULL
Which navigational mark may only be lettered?
A) An unlighted, green, can buoy B) A spherical buoy C) A red buoy D) A port side dayshape E)NULL
Which statement about the chartlet in illustration D010NG is TRUE? (Soundings and heights are in meters)?
A) There is a dangerous eddy southeast of Beito Island. B) Maury lightship is visible for 17 miles. C) The bottom to the south-southeast of the lightship is soft coral. D) There is a 12-meter deep west of Beito Island…
What describes a flood current?
A) Horizontal movement of the water toward the land after high tide B) Horizontal movement of the water toward the land after low tide C) Horizontal movement of the water away from the land following high tide D) Horizontal movement…
Under the IALA-B Buoyage System, a buoy displaying a red light will __________.?
A) be left to starboard when entering from seaward B) show a light characteristic of Morse Code “A C) be lettered D) have a radar reflector E)NULL