Determine the first time after 1200 EST (ZD +5) when the velocity of the current will be 0.5 knot on 18 November 1983, at Marcus Hook, PA.?
A) 1221 B) 1226 C) 1239 D) 1312 E)NULL
Arşivler Sorular
In plotting a running fix, how many fixed objects are needed to take your lines of position from?
A) Three B) Two C) One D) None E)NULL
The radius of a circle of equal altitude of a body is equal to the __________.?
A) coaltitude of the body B) altitude of the body C) codeclination of the body D) polar distance E)NULL
Which factor has the greatest effect on the amount of gain required to obtain a fathometer reading?
A) Salinity of water B) Temperature of water C) Atmospheric pressure D) Type of bottom E)NULL
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is __________.?
A) nonmagnetic B) weatherproof C) corrosion resistant D) capable of being permanently affixed to the vessel E)NULL
Quadrantal error in a gyrocompass has its GREATEST effect __________.?
A) in high latitudes B) near the equator C) on north or south headings D) on intercardinal headings E)NULL
If it is impossible to avoid a hurricane in the Northern Hemisphere, the most favorable place to be when the storm passes is in __________.?
A) the dangerous semicircle B) the eye (center) of the storm C) that half of the storm lying to the right of the storm’s path D) that half of the storm lying to the left of the storm’s path E)NULL
The vertical component of the Earth’s magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation?
A) The Flinders bar B) The heeling magnet C) Quadrantal soft iron spheres D) Bar magnets in the binnacle E)NULL
A double star is a star that __________.?
A) has a declination equal to twice that of the Sun B) comprises two stars that appear close together C) is twice as bright as a single star D) suddenly becomes much brighter and then fades E)NULL
The dividing meridian between zone descriptions -10 and -11 is __________.?
A) 135°30’E B) 145°00’E C) 150°00’E D) 157°30’E E)NULL