Neco 2019 Geography Question 26

Practice objective / multiple choice question 26 from the 2019 Neco Geography examination.

Neco 2019 Geography Objective / Multiple Choice Hard Difficulty
Question 26 NECO • 2019 • GEOGRAPHY • objective

A topographic map uses a contour interval of \(100\ \text{m}\). Point A is on the \(350\ \text{m}\) contour and point B on the \(550\ \text{m}\) contour. The distance between A and B measured on the map is \(3\ \text{cm}\). The map scale is 1:50,000. Determine (i) the average gradient between A and B in degrees, and (ii) whether a straight road with a maximum permissible gradient of \(5^{\circ}\) can be built directly between the points. If not, calculate the minimum horizontal distance (in metres) required to keep the gradient \(\le 5^{\circ}\).

Answer Options

A. Average gradient = 8.3°; feasible. Minimum horizontal distance ≈ 2.29 km (≈4.57 cm on the map).
B. Average gradient = 5.8°; not feasible. Minimum horizontal distance ≈ 2.10 km (≈4.20 cm on the map).
C. Average gradient = 7.6°; not feasible. Minimum horizontal distance ≈ 1.75 km (≈3.50 cm on the map).
Correct Answer D. Average gradient = 7.6°; not feasible. Minimum horizontal distance ≈ 2.29 km (≈4.57 cm on the map).
Correct Answer
D
Correct Option:
Average gradient = 7.6°; not feasible. Minimum horizontal distance ≈ 2.29 km (≈4.57 cm on the map).

About This Question

This is Neco 2019 Geography Question 26. It is one of the objective questions from the 2019 Neco Geography examination.

Difficulty level: Hard .

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