The coefficient of curvature is defined

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1. If Q is discharge is cubicmetres per sec and D is the economical diameter of the pipe. According to Lea
Options
A. D = 0.67 to 0.87 Q
B. D = 0.77 to 0.97 Q
C. D = 0.97 to 1.22 Q
D. D = 1.22 to 1.33 Q.

2. If a pitot tube is placed with its nose facing down stream, the liquid
Options
A. does not rise in the tube
B. rises in the tube to a height
C. falls in the tube to a depth
D. none of these.

6. If d is the distance between equidistant odd ordinates, the Simpson's rule for the areas, is
Options
A. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
B. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
C. [h₁ + h_n x 2(h₂ + h₄ + ... + h_{n - 1}) + 4(h₃ + h₅ + ... + h_{n - 2})]
D. [h₁ + h_n + 2(h₃ + h₅ + ... + h_{n - 2}) + 4(h₂ + h₄ + ... + h_{n - 1})]
E. none of these.

7. The maximum water content at which a reduction in water content does not cause a decrease in volume of a soil mass, is known
Options
A. liquid limit
B. plastic limit
C. shrinkage limit
D. permeability limit.

9. Pick up the incorrect statement from the following:
Options
A. The smaller the size of the pores, the higher the water can rise above the water table.
B. Below the water table, the pore water may be static.
C. The hydrostatic pressure depends on the depth below the water level.
D. The attractive forces between the particles, caused due to negative pressure of water held above the water table is called soil suction.
E. None of these.

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