## Practical Marine Engineering for Marine Engineers and Students, with Aids for Applicants for Marine Engineers' Licenses |

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### Common terms and phrases

adjustment air pump amount angle arrangement auxiliary bearing blades bolts braces brass burner carbon cast iron check valve coal coils combustion chamber compression condenser connected connecting rod copper crank crosshead cylinder decrease diameter eccentric efficiency elastic limit evaporation exhaust expansion feed pump feed water fire fitted flange force fuel furnace gage gases heat heater Hence high pressure holes increase joint lever load low pressure lubrication Marine Engineering Fig mean effective pressure means metal motion operation percent pipe piston rod pitch plate port pounds per square proper reciprocating engines reduced result revolutions revolutions per minute rings rivets scale screw shaft ship shown in Fig side speed square inch steam pressure steel stroke stuffing box surface temperature tensile strength thickness tion tubes turbine usually valve gear vanes various velocity watertube boilers weight wrought iron zinc

### Popular passages

Page 779 - It has been seen that a heat unit is the quantity of heat required to raise one pound of water one degree in temperature...

Page 893 - In the multiplication of whole numbers, place the multiplier under the multiplicand, and multiply each term of the multiplicand by each term of the multiplier, writing the right-hand figure of each product obtained under the term of the multiplier which produces it.

Page 927 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.

Page 870 - The number below the line is called the denominator, and shows into how many parts the number or thing is divided. The number above the line is called the numerator, and shows how many parts are expressed by the fraction.

Page 172 - Where P = working pressure in pounds per square inch. D = outside diameter of furnace in inches. L — length of section in inches. T = thickness of plate in sixteenths of an inch. Example.

Page 894 - The ratio between two numbers is simply their numerical relationship expressed as the quotient of the first divided by the second. Thus the ratio of 6 to 3 is 2 ; of 1.2 to 3 is .4; of 4 to 5 is .8, etc.

Page 162 - Multiply one-sixth (1-6) of the lowest tensile strength found stamped on any plate in the cylindrical shell by the thickness — expressed in inches or parts of an inch — of the thinnest plate in the. same cylindrical shell, and divide by the radius or half diameter — also expressed in inches — and the...

Page 177 - ... of the greatest pitch of the stay, riveted to the outside of the plates, and stays having one nut inside of the plate, and one nut outside of the washer or doubling strip. For T take 72 percent of the combined thickness of the plate and washer or plate and doubling strip.

Page 175 - The diameter of a screw stay shall be taken at the bottom of the thread, provided this is the least diameter.