Guide Book to the Local Marine Board Examination: The Ordinary Examination |
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Page 44
... feet . There are 6080 feet nearly in a nautical mile ; hence I foot is of a mile , and 700 feet are of 1 mile , which gives o'115 of 1 mile nearly . 700 6080 ) 700 * 0 ( 0 * 115 Ex . 2. Express as decimals of a degree 27 ° 18 ′ 35 ...
... feet . There are 6080 feet nearly in a nautical mile ; hence I foot is of a mile , and 700 feet are of 1 mile , which gives o'115 of 1 mile nearly . 700 6080 ) 700 * 0 ( 0 * 115 Ex . 2. Express as decimals of a degree 27 ° 18 ′ 35 ...
Page 45
... feet , and an imperial mile is 5280 feet ; express each of these miles as decimals of the other . Also find how near the results are to the decimal values of and 3 . 6. A sidereal day is 23h 56m 4509 ; express this as a decimal of a ...
... feet , and an imperial mile is 5280 feet ; express each of these miles as decimals of the other . Also find how near the results are to the decimal values of and 3 . 6. A sidereal day is 23h 56m 4509 ; express this as a decimal of a ...
Page 46
... feet in 0-115 of a mile . The next inferior denomination to that of miles is here feet , of which the number in one mile is .... 0'115 X 6082 230 920 6900 Ans . ( in the lowest denomination required ) 699-430 feet . Ex . 2. Find the ...
... feet in 0-115 of a mile . The next inferior denomination to that of miles is here feet , of which the number in one mile is .... 0'115 X 6082 230 920 6900 Ans . ( in the lowest denomination required ) 699-430 feet . Ex . 2. Find the ...
Page 83
... feet 7925 * 604 miles . 41,707,324 = 7899 * 114 " 139,768 = 26.471 Lesser , or polar diameter Difference of diameter , or polar compression Proportion of diameters , as 299'15 to 298 : 15 . " # And from the result it follows that the ...
... feet 7925 * 604 miles . 41,707,324 = 7899 * 114 " 139,768 = 26.471 Lesser , or polar diameter Difference of diameter , or polar compression Proportion of diameters , as 299'15 to 298 : 15 . " # And from the result it follows that the ...
Page 101
... feet from iron deck beams - and should not be within 10 feet of the extremity of any elongated iron mass , especially if vertical , such as funnels , stanchions , or the spindle of the wheel ; and it should be received as a general rule ...
... feet from iron deck beams - and should not be within 10 feet of the extremity of any elongated iron mass , especially if vertical , such as funnels , stanchions , or the spindle of the wheel ; and it should be received as a general rule ...
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A Guide Book to the Local Marine Board Examination: The Ordinary Examination ... Thomas Liddell Ainsley No preview available - 2013 |
Common terms and phrases
A.M. at ship altitude sun's L.L. angle bearing by compass Bearing of Distant central line characteristic chronometer column common logarithms compass course correct magnetic bearing correct magnetic course corresponding cosecant cosine course and distance curve cyphers decimal point decl declination departure Deviation Required diff difference of latitude difference of longitude dist Distant Object Divide dividend divisor dotted line East equator error of compass EXAMPLES FOR PRACTICE figures find the correct given Greenwich date Greenwich mean Head by Standard height of eye hour-angle hundred index corr index correction Leeway logarithm mantissa Mate meridian altitude middle latitude miles Multiply Nautical Almanac needle North Object by Standard observed altitude sun's parallel parallel sailing pole quotient Raper remainder required the latitude Rule sailing secant ship's head sine South Standard Compass subtract Traverse Table True altitude true azimuth true course variation vulgar fractions West
Popular passages
Page 48 - The Logarithm of a number to a given base is the index of the power to which the base must be raised to give the number. Thus if m = a", x is called the logarithm of m to the base a.
Page 30 - PROOF. — Multiply the divisor by the quotient, and to the product add the remainder, if any.
Page 2 - Testimonials of character, and of sobriety, experience, ability, and good conduct on board ship will be required of all applicants, and without producing them no person will be examined. As such testimonials may have to be forwarded to the office of the Registrar-General of Seamen in London for verification before any certificates can be granted, it is desirable that candidates should lodge them as early as possible. The testimonials of...
Page 116 - Unlike sea water, brackish waters differ in quality, quantity, and composition not only from place to place, but also from time to time even at a given location.
Page 5 - Mates are made compulsory, the qualifications have been kept as low as possible; but it must be distinctly understood that it is the intention of the Board of Trade to raise the standard from time to time, whenever, as will no doubt be the case, the general attainments of officers in the Merchant Service shall render it possible to do so without inconvenience...
Page 3 - He will be questioned as to his knowledge of invoices, charter-party, Lloyd's agent, and as to the nature of bottomry, and. he must be acquainted with the leading lights of the channel he has been accustomed to navigate, or which he is going to use. In cases where an applicant for a certificate as master ordinary has only served in a fore and aft rigged vessel...
Page 3 - In addition to what is required by a Second Mate, he must know how to moor and unmoor, and to keep a clear anchor ; to carry out an anchor ; to stow a hold ; and to make the requisite entries in the ship's log.
Page 351 - How would you find the time of high- water at any place, the Admiralty tide tables not being at hand, nor any other special tables available '{ A.
Page 328 - With the deviation as above, give the courses you would steer by the Standard Compass to make the following courses, correct magnetic : — . . 9.
Page 106 - The variation is said to be easterly when the North end of the needle is drawn to the eastward, and westerly when drawn to the westward of the true North ; thus, when the North end of the needle points to that part of the horizon which is true NNW £ W., the variation is said to be 2^ points West ; but when it points to the N.