A line of levels was run from BM15 to BM16 covering a distance of 3.5 km. BS and FS distances every set-up averages 50 m each. If at every turning point, the rod settles by 0.03 m, compute the correct elevation of BM16 if its computed elevation is 123.456 m. What is total no. of set-ups? Select the correct response:

Drainage structure A has an 18" RCP invert at elevation 108.00' at station 18+00 and a uniform slope of -0.5%. What is the invert at drainage structure B at station 20+00? Type your answer 107.00 If the right answer buut dan't how to Kinov

A rectangular channel has a width of 3.6m with a roughness coefficient of 0.013 Compute the critical slope Choices: 0.83 0.083 0.00308 0.38 NOTE: In the given question that is all that is given there is no discharge given please help this is the only information that is given i this question

I'S The following readings were taken with a level on a 5m staff in a levelling operation from points 1 to 12, (2.08, 1.625, 3.2, (1.67 and 2.74) CP, 218, (0.825 and 1.12) CP, 2.95, (1.35 and 2.55) CP, 4.05, (1.75 and 3.35) CP, 2.78, 3.27). Points 1 and 12 are a bench marks having elevations (210 m and 212.55m respectively. 1- Find elevation of all points by rise and fall method and apply appropriate check. 2-Determine the loop closure and adjust the calculated value of the elevations.