Area 2 - Formula

Question 1

formula for side slope, theta (lined)

Answer 1

tan theta = O/A

Question 2

formula for bottom width for concrete canal

Answer 2

b = 2d tan ( theta/ 2)

Question 3

formula for top width

Answer 3

t = b (2d / tan theta)

Question 4

formula for total top width

Answer 4

T = b+(2D / tan theta)

Question 5

formula for total depth or actual depth

Answer 5

D = 1.15d

Question 6

formula for “A” most efficient trapezoidal canal

Answer 6

A = (sq rt 3)(d^2)

Question 7

theta for the most efficient trapezoidal canal

Answer 7

60 deg

Question 8

formula for “R” most efficient trapezoidal canal

Answer 8

R = d/2

Question 9

theta for most efficient rectangular canal

Answer 9

90 deg

Question 10

formula for base, most efficient rectangular canal

Answer 10

b = 2d

Question 11

formula for “A”, most efficient rectangular canal

Answer 11

A = 2(d^2)

Question 12

formula for “R”, most efficient rectangular canal

Answer 12

R = d/2

Question 13

theta for the most efficient triangular canal

Answer 13

45 deg

Question 14

formula for “A”, most efficient triangular canal

Answer 14

A = (d^2)

Question 15

formula for unlined canal

Answer 15

b = 4d tan (theta/2)

Question 16

formula for Q

Answer 16

Q = AV

Question 17

formula with z where theta is given

Answer 17

tan theta = 1/z

Question 18

formula with z, where area is given

Answer 18

A = bd + z(d^2)

Question 19

side slope.. ___:___

Answer 19

run:rise

Question 20

formula for total volume

Answer 20

VT = Vs + Vw + Va

Question 21

formula for volume of voids

Answer 21

Vv = Vw + Va

Question 22

formula for total wet weight

Answer 22

WT = Wa + Ww + Ws