cameroon gce advanced level 2025 survey and soil mechanics 1

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1. Residual soils are formed by the action of which elements?

A. Glaciers and pressure

B. Wind and pressure

C. Water and pressure

D. Chemicals and pressure

2. The voids of a soil mass are full of air only, the soil is termed to be

A. Air entrained soil

B. Partially saturated soil

C. Dry soil

D. Dehydrated soil

3. In an optical square the mirrors are fixed at an angle of

A. 30°

B. 45°

C. 60°

D. 90°

4. The stone suitable for rubble masonry should be

A. Hard

B. Tough

C. Heavy

D. Light

5. Define soil horizon or stratum.

A. It is ignored soil profile

B. It is a soil layer within the earth crust

C. It is broken loose sediment

D. It is fine particles of soil

6. Why is it necessary to carry out aggregate abrasion test or LOS ANGELES test?

A. to know the type of aggregate to be use during road construction

B. to determine the degree of hardness or wearing or grinding effect under traffic

C. to summarise an average period of wearing out

D. to evaluate and determine the type of aggregate to be use

7. A saturated soil sample consist of how many phases?

A. Solid and air

B. Air and water

C. Solid, air and water

D. Solid and water

8. Convert 132.58° to degrees, minutes and seconds.

A. 132° 34′ 48”

B. 132° 58′ 00”

C. 132° 34′ 48”

D. 132° 50′ 08”

9. In a levelling exercise on a point A, the upper cross hair read 1.235m and the lower cross hair 0.964. Calculate the distance between the instrument and the point A.

A. 0.271m

B. 5.1m

C. 3.71m

D. 371m

10. The centesimal system used

A. Degrees for angular measurement

B. The radians for angular measurement

C. The grades for angular measurement

D. Degree and minutes for angular measurement

11. The mineral which causes a soil mass to have a reddish colour is called

A. Silica

B. Alumina

C. Iron

D. Copper

12. The angle which permits a soil mass to stay in place after an earth work activity/operation is called angle of

A. compaction

B. repose

C. slide

D. firmness

13. The test carried out on cement with the use of vicat apparatus is known as

A. consistency of cement

B. workability of cement

C. absorption of cement

D. resistance of cement

14. This traverse method begins and ends at the same point.

A. Closed traverse

B. Open traverse

C. Intermediate traverse

D. Aligned traverse

15. Select the instrument which is not used in the setting out of right angles

A. The total station

B. The optical square

C. The level

D. The theodolite