Neco 2017 Geography Question 37

Practice objective / multiple choice question 37 from the 2017 Neco Geography examination.

Neco 2017 Geography Objective / Multiple Choice Medium Difficulty
Question 37 NECO • 2017 • GEOGRAPHY • objective

A river segment is \(12\) km long and drops \(48\) m in elevation. The upstream catchment area is \(150\) km\(^2\) and receives an average annual rainfall of \(1200\) mm. With a runoff coefficient of \(0.45\), calculate the average discharge (in m\(^3\) s\(^{-1}\)) in the river segment. If a proposed small dam reduces the flow by \(15\%\) during the dry season, what is the new discharge? Give both values to two decimal places.

Answer Options

Correct Answer A. Average discharge ≈ 2.57 m³ s⁻¹; reduced discharge ≈ 2.18 m³ s⁻¹.
B. Average discharge ≈ 2.28 m³ s⁻¹; reduced discharge ≈ 1.94 m³ s⁻¹.
C. Average discharge ≈ 2.57 m³ s⁻¹; reduced discharge ≈ 2.19 m³ s⁻¹.
D. Average discharge ≈ 2.84 m³ s⁻¹; reduced discharge ≈ 2.41 m³ s⁻¹.
Correct Answer
A
Correct Option:
Average discharge ≈ 2.57 m³ s⁻¹; reduced discharge ≈ 2.18 m³ s⁻¹.

About This Question

This is Neco 2017 Geography Question 37. It is one of the objective questions from the 2017 Neco Geography examination.

Difficulty level: Medium .

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