Allied & ICAR Exam Bank • ALLIED_0522 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Sprinkler and Micro Irrigation

Subtopic: Sprinkler and Micro Irrigation

Question Statement:

A sprinkler nozzle has diameter $d = 4.0\text{ mm}$ . Pressure head is $H = 25\text{ m}$ of water. Taking $C_d = 0.95$ and $g = 9.81\text{ m/s}^2$ the nozzle discharge in L/s is (rounded off to two decimal places):

Answer Key:

0.26

Step-by-Step Solution & Explanation

$q = 0.95 \times 1.2566 \times 10^{-5} \times 22.147 = 2.644 \times 10^{-4}\text{ m}^3/\text{s} = 0.264\text{ L/s} \approx 0.26\text{ L/s}$.
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