Allied & ICAR Exam Bank • ALLIED_0483 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Soil-Water-Plant Relationship

Subtopic: Soil-Water-Plant Relationship

Question Statement:

Readily Available Moisture (RAM) in the crop root zone is defined as:

Options:

  • (A) The fraction of available water ($50\%$ to $75\%$) that a plant can easily extract without experiencing water stress or yield reduction
  • (B) The total gravitational water drained within 24 hours
  • (C) The hygroscopic moisture bound at
    gt; 31\text{ bars}$
  • (D) The moisture held below permanent wilting point

Answer Key:

A

Step-by-Step Solution & Explanation

RAM is $MAD \times AWC$, where Maximum Allowable Depletion (MAD) is typically $50-65\%$ for most field crops.
← Previous (ALLIED_0482) Next (ALLIED_0484) →

Practice In Authentic CBT Exam Interface

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

Launch CBT Mock Test