Question

Match List - I with List - II.

Choose the correct answer from the options given below :

• A. A-III, B-I, C-II, D-IV
• B. A-III, B-IV, C-I, D-II
• C. A-IV, B-I, C-II, D-III
• D. A-II, B-IV, C-III, D-I

Hint:

Remember: Hyetograph = Intensity vs. Time; Hydrograph = Discharge vs. Time; Mass Curve = Cumulative vs. Time. These are the three fundamental graphs in hydrology.

Answer 1

The Correct Option is B

Concept: Hydrological data is represented through various graphical and analytical tools. Understanding the relationship between rainfall data and its representation is key to hydrological modeling.

Step 1: Analyze each pair.

• Rainfall Intensity (A): A Hyetograph (III) is a plot of rainfall intensity against time.
• Rainfall Excess (B): Rainfall excess is the part of rainfall that results in runoff. It is directly related to the Direct Runoff Hydrograph (IV).
• Rainfall Averaging (C): Isohyets (I) are lines joining points of equal rainfall magnitude, used to calculate the average rainfall over an area.
• Mass Curve (D): A mass curve is a plot of Cumulative Rainfall (II) against time.

Step 2: Match the results.
The correct matching is A-III, B-IV, C-I, D-II.