Guide Book to the Local Marine Board Examination: The Ordinary ExaminationSimpkin, Marshall, 1875 - 396 páginas |
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Página 9
... less than 10 , writing should be clear , and the spelling should not be disregarded . I. The Equator . 2 . The Poles . 3 . A Meridian . 4. The Ecliptic . 5. The Tropics . 6 . Latitude . 7. Parallels of Latitude . 8. Longitude . 23 ...
... less than 10 , writing should be clear , and the spelling should not be disregarded . I. The Equator . 2 . The Poles . 3 . A Meridian . 4. The Ecliptic . 5. The Tropics . 6 . Latitude . 7. Parallels of Latitude . 8. Longitude . 23 ...
Página 10
... less affected by what is termed the heeling error ; on what courses does this error vanish , and on what courses is it the greatest ? 16. State to which side of the ship , in the majority of cases , is the North point of the Compass ...
... less affected by what is termed the heeling error ; on what courses does this error vanish , and on what courses is it the greatest ? 16. State to which side of the ship , in the majority of cases , is the North point of the Compass ...
Página 19
... less by , with the use of the sign = ; thus , the excess of 7 above 3 will be expressed in the form 7-3 = 4 , which is read 7 minus 3 equals 4 ; where the sign - between 7 and 3 denotes the subtraction of the latter from the former ...
... less by , with the use of the sign = ; thus , the excess of 7 above 3 will be expressed in the form 7-3 = 4 , which is read 7 minus 3 equals 4 ; where the sign - between 7 and 3 denotes the subtraction of the latter from the former ...
Página 28
... less 48 than 2564 above it , so that we can subtract ; the remainder is 142 , which , when the next figure of the dividend is brought down , becomes 1423. We now take this as a dividend , and looking at the leading figures in this new ...
... less 48 than 2564 above it , so that we can subtract ; the remainder is 142 , which , when the next figure of the dividend is brought down , becomes 1423. We now take this as a dividend , and looking at the leading figures in this new ...
Página 40
... less than the number in the divisor , annex as many cyphers to the dividend as will make the number equal to the number in the divisor , and then proceed as in whole numbers . Ex . 9 . Divide 144 by ' 0012 . The divisor contains four ...
... less than the number in the divisor , annex as many cyphers to the dividend as will make the number equal to the number in the divisor , and then proceed as in whole numbers . Ex . 9 . Divide 144 by ' 0012 . The divisor contains four ...
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A Guide Book to the Local Marine Board Examination: The Ordinary Examination ... Thomas Liddell Ainsley Sin vista previa disponible - 2013 |
Términos y frases comunes
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
Pasajes populares
Página 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.
Página 30 - PROOF. — Multiply the divisor by the quotient, and to the product add the remainder, if any.
Página 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...
Página 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.
Página 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...
Página 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...
Página 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.
Página 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.
Página 328 - With the deviation as above, give the courses you would steer by the Standard Compass to make the following courses, correct magnetic : — . . 9.
Página 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.