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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Σελίδα 34
... mark of the needle circle , and note the exact reading of the south end of the needle . In order to read either end of the needle accurately , the eye should be directly above a line in the prolongation of the oppo- site end of the ...
... mark of the needle circle , and note the exact reading of the south end of the needle . In order to read either end of the needle accurately , the eye should be directly above a line in the prolongation of the oppo- site end of the ...
Σελίδα 35
... mark . If it does not , find the position of the needle that shows the greatest difference in the readings of its ... marks . Use of the Compass . - By means of the compass the angle between any line and the direction of the needle , or ...
... mark . If it does not , find the position of the needle that shows the greatest difference in the readings of its ... marks . Use of the Compass . - By means of the compass the angle between any line and the direction of the needle , or ...
Σελίδα 42
... mark of the vernier that coin- cides with a division mark of the scale . In this case , this number is 8 ; the reading of the vernier is therefore 8X.001.008 . Hence , the length of Cao is .348 ft . Transit Verniers . - Transit verniers ...
... mark of the vernier that coin- cides with a division mark of the scale . In this case , this number is 8 ; the reading of the vernier is therefore 8X.001.008 . Hence , the length of Cao is .348 ft . Transit Verniers . - Transit verniers ...
Σελίδα 43
... mark of the vernier , and that the vernier has then the position shown in Fig . 4. Since the vernier has moved to the left , the side MN is to be read . The twenty- third mark of the vernier coincides with a division mark of the scale ...
... mark of the vernier , and that the vernier has then the position shown in Fig . 4. Since the vernier has moved to the left , the side MN is to be read . The twenty- third mark of the vernier coincides with a division mark of the scale ...
Σελίδα 46
... mark at F , making the distance EF equal to one - fourth DE . Move the cross - hairs by means of the capstan - headed screws until the vertical hair exactly covers the mark at F , being careful to move them in the opposite direction to ...
... mark at F , making the distance EF equal to one - fourth DE . Move the cross - hairs by means of the capstan - headed screws until the vertical hair exactly covers the mark at F , being careful to move them in the opposite direction to ...
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The Civil Engineer's Handbook: A Convenient Reference Book for Chainmen ... International Correspondence Schools Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
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