## A textbook on metallurgy of gold, silver, copper, lead, and zinc, Volume 3 |

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A Textbook on Metallurgy of Gold, Silver, Copper, Lead, and Zinc International Correspondence Schools No preview available - 2018 |

### Common terms and phrases

approximation body center of gravity ciphers circle circumference coefficient column cross-section cube root cubic feet cubic foot cylinder decimal places decimal point difference discharge distance divided dividend divisor equal factors Example.—If Example.—What EXAMPLES FOR PRACTICE exponent expressed feet per second flow flume foot force formula fraction frustum given number head Hence horsepower hydraulic HYDRAULIC MACHINERY hypotenuse improper fraction inches in diameter length load mean effective pressure minuend multiplied number of revolutions obtained orifice pennyweights pipe piston pounds per square pressure pulley pump quantity quotient ratio reduce result revolutions per minute right angles rods rope rule shaft shown in Fig side significant figures Solution Solution.—The square inch square root steam stroke subtract subtrahend surface tons triangle turbine valve vanes velocity vertical waterwheel weight wheel whole numbers

### Popular passages

Page 68 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.

Page 138 - A fraction is one or more of the equal parts of a unit...

Page 130 - Operations with Fractions A) To change a mixed number to an improper fraction, simply multiply the whole number by the denominator of the fraction and add the numerator.

Page 21 - 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.

Page 65 - ... the product of the two, plus the square of the second. In the third case, we have (a + b) (a — b) = a2 — b2. (3) That is, the product of the sum and difference of two quantities is equal to the difference of their squares.

Page 32 - 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.

Page 36 - The first and fourth terms of a proportion are called the extremes; and the second and third terms the means. Thus, in the proportion a : b = с : d, a and d are the extremes, and b and с the means.

Page 12 - The number to be repeated is called the MULTIPLICAND ; the number which shows how many times the multiplicand is to be taken is called the MULTIPLIER ; the result of the multiplication is called the PRODUCT.

Page 27 - A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center.

Page 68 - Dry Measure 2 pints (pt.) =1 quart (qt.) 8 quarts = 1 peck (pk.) 4 pecks = 1 bushel (bu.) 2150.42 cu.