. The elements of railroad engineering . Fig. 13. (656) What is an intersec-tion of tangents ? How is itmade and the angle of intersection measured ? (057) Define curve and tangent as applied to railroadengineering. (658) Name and describe the three classes of curves usedin railroad building. (G59) What is the amount of the divergence of two lines100 feet in length and forming an angle of 1° with eachother ? (660) What is the unit curve employed in railroadbuilding ? Define it. (661) Define a five-degree (5°) curve. (662) What is the ratio of the degree of curve to thedeflection angle ? 1302 S
. The elements of railroad engineering . Fig. 13. (656) What is an intersec-tion of tangents ? How is itmade and the angle of intersection measured ? (057) Define curve and tangent as applied to railroadengineering. (658) Name and describe the three classes of curves usedin railroad building. (G59) What is the amount of the divergence of two lines100 feet in length and forming an angle of 1° with eachother ? (660) What is the unit curve employed in railroadbuilding ? Define it. (661) Define a five-degree (5°) curve. (662) What is the ratio of the degree of curve to thedeflection angle ? 1302 (()(;;)) What is the formula for finding the radius, the deflection angle be-ing given ? (664) What is theformula for findingthe length of anychord, the radiusand deflection anglebeing given ? (665) What is thetangent distance,and what formula isused in finding it ? (666) The tan-FiG. 14. gents A B and C D, in Fig. l-t, intersect at some inaccessible point E. The angleA-IS 22° 10, the angle C 23° 15, and the side A C ; required the angle of intersection C E E, and the sidesA E2ind E C. ( Angle CEE= 45° 25. Ans. ) Side A E— ft., nearly. ( Side CE= ft, nearly. (667) The angle of intersection of two tangents is 35° 10; the degree of curve is 6° 15; what is the tangent distance ? Ans. ft., nearly.(66S) The angle of intersection is 14° 12; the degree ofcurve, 3° 15; what is the tangent distance ? Ans. feet.(669) How is the length of curve found ?(6T0) The angle of intersection is 30° 45; the degree ofcurve, 5° 15; what is the length of the cu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
