## A Textbook on Marine Engineering ...: Steam and Steam Boilers, Steam Engines, the Machinery of Western River Steamboats, Recent Developments in Marine Engineering |

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A Textbook on Marine Engineering International Correspondence Schools Sin vista previa disponible - 2015 |

### Términos y frases comunes

allowed amount angle applied base belt body boiler bottom called carbon carried cause circle coal column connected contained cubic cylinder decimal denominator diameter distance divided driven engine equal evaporated example expressed feed feed-water feet figure fire fitted flue foot force fraction fuel furnace gauge given grate head heat Hence horsepower hour hydrogen indicated iron length less load material means measured minute moves multiplied nearly obtained opening oxygen passes pipe piston pitch placed plate pounds pounds of water PRACTICE pressure pulley pump quantity raise ratio reduced remaining result rivets root rule safety shaft shell shown in Fig shows side SOLUTION space square inch stay steam surface taken temperature thickness tubes units usually valve vessel volume weight

### Pasajes populares

Página 139 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.

Página 151 - Newton's Three Laws of Motion," and are as follows: I. All bodies continue in a state of rest, or of uniform motion in a straight line, unless acted upon by some external force that compels a change.

Página 478 - The conditions of the boiler and furnace in all respects should be, as nearly as possible, the same at the end as at the beginning of the test. The steam pressure should be the same, the water level the same, the fire upon the grates should be the same in quantity and condition, and the walls, flues, etc., should be of the same temperature.

Página 95 - The terms of a ratio are the two numbers to be compared ; thus, in the above ratio, 20 and 4 are the terms. When both terms are considered together, they are called a couplet ; when considered separately, the first term is called the antecedent, and the second term the consequent. Thus, in the ratio 20 : 4, 20 and 4 form a couplet, and 20 is the antecedent, and 4 the consequent.

Página 121 - If a straight line be drawn through two sides of a triangle, parallel to the third side, a second triangle will be formed whose sides will be proportional to the corresponding sides of the first triangle.

Página 99 - The first and fourth terms of a proportion are called the extremes, and the second and third terms, the means. Thus, in the foregoing proportion, 8 and 3 are the extremes and 4 and 6 are the means.

Página 12 - The number thus added to itself, or the number to be multiplied, is called the multiplicand. The number which shows how many times the multiplicand is to be taken, or the number by which we multiply, is called the multiplier.

Página 480 - The boiler should be run continuously, without stopping for meal times or for rise or fall of pressure of steam due to change of demand for steam. The draught being adjusted to the rate of evaporation or combustion desired before the test is begun, it should be retained constant during the test by means of the damper. If the boiler is not connected to the same steam pipe with other boilers, an extra outlet for steam with valve in same should...

Página 154 - In a moving body, the line described by its center of gravity is always taken as the path of the body. In finding the distance that a body has moved, the distance that the center of gravity has moved is taken.

Página 477 - ... calculation of the results of the test corrected accordingly. Wherever possible, the test should be made with standard coal of a known quality. For that portion of the country east of the Alleghany Mountains, good anthracite egg coal or Cumberland semibituminous coal may be taken as the standard for making tests. West of the Alleghany Mountains and east of the Missouri River, Pittsburg lump coal may be used.