B. A circular curve of radius 900m is to counect two straights which detlect through an angle of 3 29 24 ", The througlh chainage at the latersoction Point I is 1182.63m With the aid of s well labeled diagram. Calculate the following data required for setting out of the curye at 20m chord length and tabulate the results.
a) Length of the Tangent
b) Chuage at Point of Curvature (PC)
c) Length of the Curve
d) Chainage at Point Of Tangency (PT)
e) Initial Subchord Length
D Final Subchord Tangential angles for
i. Standard chords
i. Initial subchord
i Final subchord
Table of results

SOLUTION:

i) 3 to 6

here, the hour hand moves from 3 to 6. it starts from 3 and covers digits 4, 5 and 6.

so, the hour hand-turned by one right angle.

ii) 2 to 8

here, the hour hand turns from 2 to 8. it starts from 2 and covers digits 3,4,5,6,7 and 8. so, the hour hand-turned by two right angles.

iii) 5 to 11

here, the hour hand turns from 5 to 11. it starts from 5 and covers digit 6, 7, 8,9,10 and 11. so, the hour hand-turned by two right angles.

iv)10 to 1

here, the hour hand turns from 10 to 1. it starts from 10 and covers digit 11, 12 and 1. so, the hour hand-turned by one right angle.

v) 12 to 9

here, the hour hand turns from 12 to 9. it starts from 12 and covers digits 1,2,3,4,5,6,7,8 and 9. so, the hour hand-turned by three right angles.

vi) 12 to 6

here, the hour hand turns from 12 to 6. it starts from 12 and covers digits 1,2,3,4,5 and 6. so, the hour hand turned by two right angles.