Allied & ICAR Exam Bank • ALLIED_0525 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Sprinkler and Micro Irrigation

Subtopic: Sprinkler and Micro Irrigation

Question Statement:

In designing a sprinkler lateral pipeline, the maximum allowable pressure head variation between the first sprinkler and last sprinkler along the lateral is typically limited to:

Options:

  • (A) $20\%$ of the average sprinkler operating pressure head
  • (B) $50\%$
  • (C) $5\%$
  • (D) $100\%$

Answer Key:

A

Step-by-Step Solution & Explanation

A $20\%$ pressure head variation maintains discharge variation within approx. $10\%$ (since $q \propto \sqrt{H}$, $1.2^{0.5} \approx 1.10$).
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