Waec Model Questions Vol1 2024 Geography Question 42

Practice objective / multiple choice question 42 from the 2024 Waec Model Questions Vol1 Geography examination.

Waec Model Questions Vol1 2024 Geography Objective / Multiple Choice Medium Difficulty
Question 42 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • GEOGRAPHY • objective

A small catchment of area 3 km² has a main drainage channel that is 2.5 km long with an average slope of 0.02 (dimensionless). For catchments smaller than 5 km² the Kirpich formula is recommended to estimate the time of concentration (Tc) in minutes: Tc = 0.0195 L^0.77 S^‑0.385, where L is the channel length in metres and S is the slope. Estimate the time of concentration in minutes and also express it in hours (rounded to two decimal places).

Answer Options

Correct Answer A. 36.5 minutes (≈0.61 hours)
B. 42.3 minutes (≈0.71 hours)
C. 50.1 minutes (≈0.84 hours)
D. 28.0 minutes (≈0.47 hours)
Correct Answer
A
Correct Option:
36.5 minutes (≈0.61 hours)

About This Question

This is Waec Model Questions Vol1 2024 Geography Question 42. It is one of the objective questions from the 2024 Waec Model Questions Vol1 Geography examination.

Difficulty level: Medium .

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