Vocational MathematicsD.C. Heath & Company, 1915 - 341 páginas |
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Términos y frases comunes
amperes boiler bolt called cast iron cents circuit circular mils circular pitch circumference column copper cost cotton countershaft cubic foot cubic inches cylinder decimal denominator diam diametral pitch distance divide divisor drill driving electricity engine equal factors feet figure Find the number Find the weight formula fraction gear given number greatest common divisor hole horse power hypotenuse lathe lead screw least common multiple length machine mantissa measure metal multiply necessary number of revolutions number of teeth number of yards ohms ounce piece pipe piston pitch diameter plate pulley pump quantity quotient ratio resistance revolutions per minute rivet roof screw thread shaft sheet shingles side specific gravity spindle square inch steam steel subtract tank thick threads per inch triangle tube Twaddell scale units voltage volts weight in grains wire worsted yarn yarn
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Página 60 - The square of a number composed of tens and units is equal to the square of the tens, plus twice the product of the tens by the units, plus the square of the units. tens?
Página 41 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints — 1 quart (qt...
Página 192 - The ratio of the mass of a unit volume of a substance to the mass of the same volume of a standard substance at a standard temperature. Water at 39.2° F is the standard substance usually referred to.
Página 41 - DRY MEASURE 2 pints (pt.) = 1 quart (qt.) 8 quarts =1 peck (pk.) 4 pecks = 1 bushel (bu...
Página 23 - Reduce compound fractions to simple ones, and mixt numbers to improper fractions ; then multiply the numerators together for a new numerator, and the denominators for. a new denominator.
Página 8 - DIVISION is the process of finding how many times one number is contained in another, or of finding one of the equal parts of a number.
Página 205 - The efficiency of a joint may be defined as the ratio of the strength of the joint to that of the solid plate.
Página 162 - Since the circular pitch is the distance from the cente'r of one tooth to the center of the next, it will also be equal to 3.1416 of circumference of pitch circle divided by the number of teeth in that 3.1416. But the number of teeth in 3.1416...
Página 66 - In a right triangle, the side opposite the right angle is called the hypotenuse and is the longest side.
Página 40 - TABLE. 12 inches (in.) = 1 foot, ft. 3 feet = 1 yard, yd. 5£ yards, or 16£ feet = 1 rod, rd. 40 rods = 1 furlong, fur.