Question Bank • QB_IDE_EXP_030 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Agricultural Drainage

Subtopic: Drainage coefficient

Question Statement:

The Drainage Coefficient ($DC$) in agricultural engineering is universally defined as:

Options:

  • (A) The depth of water in cm or mm removed from the drainage area in 24 hours
  • (B) The ratio of drain spacing to pipe diameter
  • (C) The fraction of rainfall that enters the soil as infiltration
  • (D) The hydraulic conductivity divided by drain depth

Answer Key:

A

Step-by-Step Solution & Explanation

Drainage Coefficient ($DC$) is defined as the design rate of water removal expressed as the depth of water (in millimeters or centimeters) removed from the entire drainage watershed within a 24-hour period.
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