The Civil Engineer's Handbook: A Convenient Reference Book for Chainmen, Rodmen, Transitmen, Levelers, Surveyors, as Well as Draftsmen, Computers, and Railroad, Municipal, and Hydraulic EngineersInternational textbook Company, 1913 - 411 σελίδες |
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Αποτελέσματα 1 - 5 από τα 31.
Σελίδα xiv
... observation , Determi- nation of latitude by , 151 observation , Determination of meridian by , 150 time , Mean , 141 Solids , Center of gravity of , 265 Sounding poles , 123 Soundings , 123 South pole of celestial sphere , 139 Specific ...
... observation , Determi- nation of latitude by , 151 observation , Determination of meridian by , 150 time , Mean , 141 Solids , Center of gravity of , 265 Sounding poles , 123 Soundings , 123 South pole of celestial sphere , 139 Specific ...
Σελίδα xv
... observations of , 154 Formula for azimuth of , 150 Sun's parallax in altitude , Table of , 152 Superelevation of outer rail , Formula for , 172 Superimposed loads , Retain- ing wall supporting , 342 Surcharged retaining wall , 341 walls ...
... observations of , 154 Formula for azimuth of , 150 Sun's parallax in altitude , Table of , 152 Superelevation of outer rail , Formula for , 172 Superimposed loads , Retain- ing wall supporting , 342 Surcharged retaining wall , 341 walls ...
Σελίδα 34
... observe whether the north end reads the same as the south end did before reversing . If it does not read the same , correct one - half the error by bending the needle carefully , and repeat the operation , using different graduation ...
... observe whether the north end reads the same as the south end did before reversing . If it does not read the same , correct one - half the error by bending the needle carefully , and repeat the operation , using different graduation ...
Σελίδα 35
... observe whether the south end exactly cuts the opposite grad- uation mark . If it does not , find the position of the needle that shows the greatest difference in the readings of its opposite ends ; then remove the needle from the pivot ...
... observe whether the south end exactly cuts the opposite grad- uation mark . If it does not , find the position of the needle that shows the greatest difference in the readings of its opposite ends ; then remove the needle from the pivot ...
Σελίδα 45
... observe the positions of the bubbles . Sometimes this adjustment is made by one trial , but it is usually necessary to repeat the operation . Second Adjustment . To make the line of sight perpendicular to the transverse axis of the ...
... observe the positions of the bubbles . Sometimes this adjustment is made by one trial , but it is usually necessary to repeat the operation . Second Adjustment . To make the line of sight perpendicular to the transverse axis of the ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
accompanying table adjustment angles of repose axis azimuth backsight beam bearing bending brick bubble called cement center line center of gravity chain chord circle circular curve clamp coefficient column computed concrete correction cross-hairs cross-section cubic curvature degree of curve determined diameter discharge distance dumpy level elevation equal factor of safety feet formula friction frog given horizontal Inches instrument intersection latitude length line of sight load located longitude longitude range material maximum means measured meridian method moment of inertia mortar pavement perpendicular pipe plane plane table Portland cement position Pounds pressure prismoid radius rail railroad railroad switch ratio reading rivet sand sewer shear shearing stress shown in Fig side slope spiral square stadia stake station steel stone strength stress subgrade surface survey tangent telescope tion track transit triangle tube turnout velocity vernier vertical volume wall weight
Δημοφιλή αποσπάσματα
Σελίδα 4 - 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...
Σελίδα 2 - 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...
Σελίδα 2 - 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.
Σελίδα 5 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 343 - The pressure of a liquid on any surface immersed in it is equal to the weight of a column of the liquid whose base is the surface pressed, and whose height is the perpendicular depth of the center of gravity of the surface below the surface of the liquid.
Σελίδα 6 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg...
Σελίδα 6 - MEASURES OF CAPACITY 10 milliliters (ml.) = 1 centiliter (cl.) 10 centiliters = 1 deciliter (dl.) 10 deciliters = 1 liter (1.) 10 liters = 1 dekaliter (Dl.) 10 dekaliters = 1 hektoliter (hi.) 10 hektoliters = 1 kiloliter (kl.) MEASURES OF WEIGHT 10 milligrams (mg.) = 1 centigram (eg.) 10 centigrams = 1 decigram (dg.) 10 decigrams = 1 gram (g.) 10 grams...
Σελίδα 405 - The pulverized carbonate of lime, granite, or quartz while cold shall be mixed with the hot sand in the required proportions, and then mixed with the asphaltic cement, at the required temperature and in the proper proportion, in a suitable apparatus, so as to effect a thoroughly homogeneous mixture.
Σελίδα 2 - 1 Square Chain . sq. ch. 10 Square Chains " 1 Acre A. 640 Acres " 1 Square Mile . . sq. mi. 36 Square Miles (6 miles square)
Σελίδα 3 - TROY WEIGHT. 24 grains (gr.) 1 pennyweight (pwt.) 20 pennyweights, 1 ounce (oz.) 12 ounces ... 1 pound (Ib.) Troy weight is used in weighing gold, silver, precious stones, etc. APOTHECARIES