Allied & ICAR Exam Bank • ALLIED_0398 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Hydrology and Runoff

Subtopic: Hydrology and Runoff

Question Statement:

In the double-mass curve technique, a break in the slope of the plot indicates:

Options:

  • (A) Inconsistency or change in the exposure conditions/location of the rain gauge station being tested
  • (B) Occurrence of an extreme 100-year flood
  • (C) Change in catchment soil texture
  • (D) Zero evaporation

Answer Key:

A

Step-by-Step Solution & Explanation

Double-mass curve compares cumulative rainfall of a station against the cumulative mean of surrounding index stations to test consistency and adjust record shifts.
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