Rider's Little Engineer: A Pocket-book of Engineering and Other Data Relative to Many Subjects ...

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Freeman Art Print, 1901 - Engineering - 480 pages
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Contents

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Copyright

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Page 35 - The cube root of a number is one of the three equal factors of the number. Thus the cube...
Page 32 - TT7HBIR instruments are in general use by the US Government Engineers, Geologists and Surveyors and the range of instruments, as made by them for River, Harbor, City, Bridge, Tunnel, Railroad and Mining Engineering...
Page 35 - Multiply the divisor, thus augmented, by the last figure of the root, and subtract the product from the dividend, and to the remainder bring down the next period for a new dividend.
Page 35 - Subtract the square of the root figure from the left-hand period, and to the remainder annex the next period for a dividend.
Page 34 - Double the part of the root already found for a trial divisor. Find how many times this divisor is contained in the dividend, exclusive of the right-hand figure," and write the quotient as the next figure of the root.
Page 170 - To the State Engineer and Surveyor of the State of New York...
Page 300 - The mean pressure of the atmosphere is usually estimated at 14.7 pounds per square inch, so that with a perfect vacuum it will sustain a column of mercury 29.9 inches or a column of water 33.9 feet high at sea level.
Page 168 - ... performance of the several works which he shall prosecute to full completion in the manner and time specified. Any workman whom the Engineer may deem incompetent or unfit for duty, shall at once be discharged upon the written request of the Engineer, and shall not be again employed on the work. 10. Should the Contractor at any time fail or refuse to comply with these specifications or to furnish suffcient force or machinery to complete the contract within the specified time or fail or refuse...
Page 312 - To find quantity of water elevated in one minute, running at 100 feet of piston speed per minute, square the diameter of the water cylinder in inches and multiply by 4. Example: Capacity of a 5-inch cylinder is desired. The square of the diameter (5 inches) is 25, which multiplied by 4, gives 100, the number of gallons per minute (approximately). To find the horse power necessary to elevate water...
Page 312 - To find the velocity in feet per minute necessary to discharge a given volume of water in a given time, multiply the number of cubic feet of water by 144 and divide the product by the area of the pipe in inches.

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