Question

What is the height of the centre of pressure above the water level in the inlet well if the R.L of the centre of pressure is 150.83 m and the R.L of water level in inlet well is 148.30 m?

(a) 2.53 m

(b) 1.78 m

(c) 3 m

(d) 1.99 m

I have been asked this question by my school teacher while I was bunking the class.

My enquiry is from Canal Falls in section Canal Falls of Irrigation Engineering

Answer 1

Right option is (a) 2.53 m

Explanation: The height of the centre of pressure (Y) above the water level in the inlet well is given by –

Y = R.L of C.P – R.L of water level in inlet well

Y = 150.83 – 148.30

Y = 2.53 m.