neco model questions vol1 2023 geography | Practical

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Question 1 View Details

A topographic map of the town of Umuahia is provided. The map scale is 1 cm : 500 m. The map grid is rectangular with each grid square measuring 1 cm by 1 cm. True north is shown by the north arrow. The coordinates (in centimetres) of three landmarks are: - Town Hall (A): (12, 8) - Main Market (B): (20, 15) - River Bridge (C): (16, 22) The contour interval is 10 m. The elevations at the three points are: - A: 120 m - B: 150 m - C: 130 m The map also shows a rectangular park whose corners are at grid points (10, 5), (10, 12), (18, 12) and (18, 5). Answer the following:

Question Parts

(a)

Calculate the straight‑line ground distance between the Town Hall and the Main Market. Show all steps.

(b)

Determine the bearing from the Town Hall to the River Bridge, expressed as degrees east of true north (nearest degree).

(c)

Estimate the average slope between the Town Hall and the River Bridge as a percentage. (Use the straight‑line distance between the two points.)

(d)

Calculate the actual area of the rectangular park in hectares.

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Question 2 View Details

A model of a rectangular reservoir is drawn on graph paper at a scale of 1 : 250. The model measures 12 cm in length and 8 cm in width. The deepest point of the reservoir is shown on the model by a vertical line that is 12 cm high. The scale applies to all linear dimensions. Answer the following:

Question Parts

(a)

Find the actual length and width of the reservoir in metres.

(b)

Calculate the actual surface area of the reservoir in square metres and in hectares.

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Question 3 View Details

A topographic map of Nigeria is drawn at a scale of 1 cm : 5 km. The latitude and longitude of two towns are given as follows: Town A: 7°30' N, 4°00' E; Town B: 6°45' N, 5°15' E. Using the information on the map, answer the questions below.

Question Parts

(a)

Calculate the straight‑line distance between Town A and Town B in kilometres. (Assume 1° latitude ≈ 111 km and use the average latitude for the longitude conversion.)

(b)

Determine the approximate bearing from Town A to Town B (expressed as degrees east of true north).

(c)

State two possible sources of error in the method used above.

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Question 4 View Details

A weather station recorded the daily maximum temperature (°C), minimum temperature (°C) and relative humidity (%) for a week as shown in the table below. | Day | Max (°C) | Min (°C) | RH (%) | |-----|----------|----------|--------| | 1 | 32 | 22 | 68 | | 2 | 35 | 24 | 72 | | 3 | 30 | 20 | 80 | | 4 | 33 | 23 | 65 | | 5 | 31 | 21 | 70 | | 6 | 34 | 25 | 60 | | 7 | 29 | 19 | 85 | Using this data, answer the questions that follow.

Question Parts

(a)

Calculate the mean daily temperature for each day (average of maximum and minimum) and then determine the overall mean temperature for the week.

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