Local Marine Board Examination, for Officers in the Mercantile Marine Service: Including: Regulations for Masters and Mates, in Foreign and Coasting Trade; Rules of the Road, Lights, Laws of Storms, Questions in Seamanship, Navigation, Steam, &c., &c.; Also: a Series of Explanatory Lectures on Navigation and Astronomical TermsJ.A. Cummings & Company, 1868 - 91 páginas |
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Página 18
... mercury announces that the first half has passed . The hurricane season generally sets in , in the North Atlan- tic , as the sun is leaving the tropic of Cancer , shortly after the summer solstice , and continues until he has passed to ...
... mercury announces that the first half has passed . The hurricane season generally sets in , in the North Atlan- tic , as the sun is leaving the tropic of Cancer , shortly after the summer solstice , and continues until he has passed to ...
Página 31
... mercury in a basin , and , raising the tube perpen- dicular , withdrew his finger : he observed the mercury in the tube suspended to the height of 27 inches above the surface of that in the basin . He compared the height of the column ...
... mercury in a basin , and , raising the tube perpen- dicular , withdrew his finger : he observed the mercury in the tube suspended to the height of 27 inches above the surface of that in the basin . He compared the height of the column ...
Página 32
... mercury in the basin , and forced it to ascend in the tube until both weights balanced each other . Pascal originated the idea of measuring elevations by the variations of the barometer ; but he foresaw a difficulty . He compared the ...
... mercury in the basin , and forced it to ascend in the tube until both weights balanced each other . Pascal originated the idea of measuring elevations by the variations of the barometer ; but he foresaw a difficulty . He compared the ...
Página 33
... mercury , as its motion up and down , that indicates the weather . The mercury sometimes is sluggish , and sticks to the side of the glass ; therefore , when you take an observation by it , always shake the tube lightly first , and if ...
... mercury , as its motion up and down , that indicates the weather . The mercury sometimes is sluggish , and sticks to the side of the glass ; therefore , when you take an observation by it , always shake the tube lightly first , and if ...
Página 60
... mercury was blown out of the steam guage , by the pressure of steam in the boilers , what would you apprehend was the cause ? QUESTION 8. - What would you do to relieve the pressure of the boilers ? QUESTION 9. - How would you regulate ...
... mercury was blown out of the steam guage , by the pressure of steam in the boilers , what would you apprehend was the cause ? QUESTION 8. - What would you do to relieve the pressure of the boilers ? QUESTION 9. - How would you regulate ...
Otras ediciones - Ver todas
Local Marine Board Examination, for Officers in the Mercantile Marine Service Erasmus Thompson Sin vista previa disponible - 2017 |
Local Marine Board Examination, for Officers in the Mercantile Marine ... Erasmus Thompson Sin vista previa disponible - 2017 |
Términos y frases comunes
amplitude anchor ascertain atmosphere azimuth barometer boilers bottomry CAPT cargo centre certificate chro chronometer circle clouds coast column commander compass correct course cyclone deck declination ecliptic engine equator Eye 19 feet fixed stars Give the rule Greenwich Gulf Stream hemisphere hight horizon hurricane inches Index Error latitude and longitude latitude of ship LECTURE longitude by chronometer longitude of ship Master Mate mercury meridian altitude moon moon's Nautical Almanac Nautical miles navigation noon northern hemisphere officer parallel sail pass passenger planets point of Aries polar distance pole port side Q.-What Quadrant QUESTION refraction Required the latitude Required the longitude right ascension rise Sailing Ships scudding seaman SEAMANSHIP semi-diameter sextant ship on chart ship's Ships under Steam Statute miles steamships stow and dunnage subtract sun's altitude tion Topsail true altitude tube tude valves variation vessel voyage weather wind zenith distance
Pasajes populares
Página 25 - When two steam vessels are meeting end on, or nearly end on, so as to involve risk of collision, each shall alter her course to starboard so that each may pass on the port side of the other.
Página 26 - Nothing in these rules shall exonerate any ship, or the owner, or master, or crew thereof, from the consequences of any neglect to carry lights or signals, or of any neglect to keep a proper look.out, or of the neglect of any precaution which may be required by the ordinary practice of seamen, or by the special circumstances of the case.
Página 25 - A vessel which, is closehauled on the port tack shall keep out of the way of a vessel which is closehauled on the starboard tack. (c) When both are running free, with the wind on different sides, the vessel which has the wind on the port side shall keep out of the way of the other.
Página 23 - ... use : and shall, on the approach of or to other vessels, be exhibited on their respective sides in sufficient time to prevent collision, in such manner as to make them most visible, and so that the green light shall not be seen on the port side nor the red light on the starboard side, nor, if practicable, more than two points abaft the beam on their respective sides.
Página 22 - Rules every steam vessel which is under sail and not under steam is to be considered a sailing vessel, and every vessel under steam, whether under sail or not, is to be considered a steam vessel. The word " steam vessel " shall include any vessel propelled by machinery. A vessel is
Página 24 - Pilot vessels, when engaged on their station on pilotage duty, shall not show the lights required for other vessels, but shall carry a white light at the masthead, visible all round the horizon, and shall also exhibit a flare-up light or flare-up lights at short intervals, which shall never exceed fifteen minutes.
Página 25 - When two sailing ships are crossing so as to involve risk of collision, then, if they have the wind on different sides, the ship with the wind on the port side shall keep out of the way...
Página 26 - If two ships under steam are crossing so as to involve risk of collision, the ship which has the other on her own starboard side shall keep out of the way of the other.
Página 24 - Open boats shall not be obliged to carry the side lights required for other vessels, but shall, if they do not carry such lights, carry a lantern having a green slide on one side and a red slide on the other side; and on the approach of or...
Página 26 - Every steamship, when approaching another ship so as to involve risk of collision, shall slacken her speed, or if necessary stop and reverse ; and every steamship shall, when in a fog, go at a moderate speed.