MathematicsAmerican School of Correspondence, 1903 - Engineering |
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Page 19
... square inches . If the steam pressure is 47 pounds per square inch , what is the total pressure upon it ? Ans . 5,311 lbs . ( 19 ) The end of a boiler about ten feet in diameter has an area of 11,310 square inches . If the pressure per ...
... square inches . If the steam pressure is 47 pounds per square inch , what is the total pressure upon it ? Ans . 5,311 lbs . ( 19 ) The end of a boiler about ten feet in diameter has an area of 11,310 square inches . If the pressure per ...
Page 20
American School (Chicago, Ill.) ( 11 ) There are 161 feet in a rod . How many are there in of a rod ? Ans . 14,7 ft . 16 square ( 12 ) A water - tube boiler has a grate surface of 27 feet . It burns 273 pounds per square foot per hour ...
American School (Chicago, Ill.) ( 11 ) There are 161 feet in a rod . How many are there in of a rod ? Ans . 14,7 ft . 16 square ( 12 ) A water - tube boiler has a grate surface of 27 feet . It burns 273 pounds per square foot per hour ...
Page 10
... square miles of water , and about 53 million square miles of land . What per cent of the entire surface of the earth ... feet long when wet ? Ans . 200 feet . ( 14 ) From a cask containing 120 gallons of oil , 61 gallons leaked out ...
... square miles of water , and about 53 million square miles of land . What per cent of the entire surface of the earth ... feet long when wet ? Ans . 200 feet . ( 14 ) From a cask containing 120 gallons of oil , 61 gallons leaked out ...
Page 13
... as a unit . Observ- ing the table we see that instead of 12 square inches in a square foot , we have 12 x 12 or 144 square inches . Instead of 3 we have 33 or 9 square feet in a square yard , ARITHMETIC . 13 Square Measure 13.
... as a unit . Observ- ing the table we see that instead of 12 square inches in a square foot , we have 12 x 12 or 144 square inches . Instead of 3 we have 33 or 9 square feet in a square yard , ARITHMETIC . 13 Square Measure 13.
Page 14
American School (Chicago, Ill.) 33 or 9 square feet in a square yard , and so on . ing illustrates the reason for this : The follow- Fig . 1 . Fig . 2 Let the side of Fig . 1 be 1 unit , and that of Fig . 2 , two units in length . Now ...
American School (Chicago, Ill.) 33 or 9 square feet in a square yard , and so on . ing illustrates the reason for this : The follow- Fig . 1 . Fig . 2 Let the side of Fig . 1 be 1 unit , and that of Fig . 2 , two units in length . Now ...
Common terms and phrases
algebraic altitude Arithmetic binomial boiler called cancel cent ciphers circumference coefficient column common denominator common multiple contained cube root cubic feet cylinder decimal places decimal point diameter divided dividend division divisor dollars engine equal EXAMPLES FOR PRACTICE exponent expression figure Find the value find two numbers following rule frustum Hence highest common factor horse-power hour ILLUSTRATIVE EXAMPLES improper fraction integer last term lateral area least common multiple miles minuend mixed number monomial multiplicand multiply numerator and denominator obtain parenthesis polygon polynomial pounds preceding prism quotient radius ratio Reduce remainder result second term side slant height Solve the equation square feet square inches square root subtract subtrahend Transposing trial divisor triangle units unknown quantity volume weight whole number write
Popular passages
Page 36 - Every circumference of a. circle, whether the circle be large or small, is supposed to be divided into 360 equal parts called degrees. Each degree is divided into 60 equal parts called minutes, and each minute into 60 equal parts called seconds.
Page 9 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Page 31 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Page 13 - LIQUID MEASURE 4 gills (gi.) = 1 pint (pt.) 2 pints = 1 quart (qt.) 4 quarts = 1 gallon (gal.) 31| gallons = 1 barrel (bbl.) 2 barrels...
Page 33 - The diameter of a circle is a straight line drawn through the center and terminating in the circumference.
Page 7 - Linear Measure 12 inches (in.) = 1 foot (ft.) 3 feet...
Page 19 - The square of the difference of two quantities is equal to the square of the first minus twice the product of the first by the second, plus the square of the second.
Page 11 - CUBIC MEASURE 1728 cubic inches (cu. in.) =1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Page 56 - A right circular cone or cone of revolution is a cone whose axis is perpendicular to the base. It may be generated by the revolution of a right triangle about one of the perpendicular sides as an axis.
Page 17 - 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.