Allied & ICAR Exam Bank • ALLIED_0487 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Crop Water Requirement

Subtopic: Crop Water Requirement

Question Statement:

According to FAO-56 standards, the internationally accepted standard method for computing reference evapotranspiration $ET_0$ is the:

Options:

  • (A) FAO Penman-Monteith equation
  • (B) Blaney-Criddle formula
  • (C) Thornthwaite method
  • (D) Hargreaves temperature equation

Answer Key:

A

Step-by-Step Solution & Explanation

The FAO-56 Penman-Monteith method physically combines aerodynamic and energy-balance components and is the international reference standard.
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