1. Determine the unknown elevation for the following. ELEVATION 202.167 ELEVATION 158.897 ELEVATION 320,020 ·1.002 -0.679 -2.731 2.959 0,811 ? ?

1. Calculate the grade of points A, B and C. El. 126.42m 3.70% 158.75 A -4.1% 66.45 126-866- B 2.90% 205.6 C

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Problem 2. Calculate the area of the closed traverse or field in square meters (using coordinate method). -2 . 12 -10 8 6 2 A (4,10) D (2,2) 2 4 6 8 B (9,7) 10 C (11,2) 12 14

The following consecutive readings were taken with a level and a 4m leveling staff on a continuously sloping ground at a common interval of 30 m on line AB. Chainage 0 Level Station 30 0.585 0.930 A 60 1.95 90 2.845 120 3.645 150 3.93 B The reduced level (RL) of station A is 50.00. Calculate the reduced levels at all the points where the leveling staff is placed. Tabulate the results and apply usual checks. Also determine the gradient of line AB.

Engineering Surveying. Do as indicated and provide complete solution.

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8. Reciprocal leveling between points A and B, located on opposite banks of a wide river gives the following readings in meters. From the first setup near A: on A, 0.993; on B, 2.076, 2.077, and 2.078. For the set-up near B the readings are: on B, 2.549; on A. 1.463, 1.462, and 1.463. If the elevation of A is 925.28 meters determine the true difference in elevation between the two points and the elevation of B. fat Instr Set up JEV925.28m- 2nd Instr- Setup (Unknown Elev)