Practical Mathematics for Electricians, Machinists, Plumbers, Carpenters ...
Practical Mathematics for Electricians, Machinists, Plumbers, Carpenters ...
Massachusetts. Dept. of Education. Division of University Extension
The book Practical Mathematics for Electricians, Machinists, Plumbers, Carpenters ... was written by author Massachusetts. Dept. of Education. Division of University Extension Here you can read free online of Practical Mathematics for Electricians, Machinists, Plumbers, Carpenters ... book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Practical Mathematics for Electricians, Machinists, Plumbers, Carpenters ... a good or bad book?
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B, F, f ^ 14 Xjg X -- X 3 = 56 board feet in one plank. 1% 3 66 19 494 56 1054 board feet in the 19 planks. If 1000 board feet cost $30, 1054 board feet will cost M*i or 1.054 times $30, which amounts to $31.62. Problems — Group I 1. Angles are much used in the construction of buildings. What is the area of the section shown in Fig. 112 if the metal is i inch thick? 2. A brass cover plate 8 inches in diameter has four f-inch holes drilled in it. Find the area of the brass in the plate after the... holes are driUed. See Fig. 113. 3. How many square feet are there in a cement sidewalk 160 feet long and 4 feet 6 inches wide? 4. A house is 40 feet long, 32 feet wide and it has an average height of 19 feet. Allowing 28 square yards for gables and dormer windows, how many square yards of painted surface are there on the house? Digitized by Google PROBLEMS 129 6. If a gallon of paint covers 90 square yards in two coats, how many gallons of paint are required for the house described in Problem 4?
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