Allied & ICAR Exam Bank • ALLIED_1204 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Micro-Irrigation Systems

Subtopic: Drip Irrigation Emitter Flow

Question Statement:

A drip emitter follows the discharge equation $q = k H^x$. If an emitter operates at pressure head $H_1 = 10\text{ m}$ with discharge $q_1 = 4.0\text{ L/h}$, and the flow exponent is $x = 0.50$ (turbulent orifice flow), the discharge in L/h at pressure head $H_2 = 14.4\text{ m}$ is:

Answer Key:

4.8

Step-by-Step Solution & Explanation

$\frac{q_2}{q_1} = \left(\frac{H_2}{H_1}\right)^x = \left(\frac{14.4}{10}\right)^{0.5} = (1.44)^{0.5} = 1.20$. Discharge $q_2 = 4.0 \times 1.20 = 4.80\text{ L/h}$.
← Previous (ALLIED_1203) Next (ALLIED_1205) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test