# Geotechnical Engineering MCQs

## MCQs on Geotechnical Engineering

Solve Geotechnical Engineering Multiple-Choice Questions to prepare better for GATE. Learn more about Geotechnical Engineering and Geotechnical Engineering MCQs by checking notes, mock tests, and previous years’ question papers. Gauge the pattern of MCQs on Geotechnical Engineering by solving the ones that we have compiled below for your practice:

## Geotechnical Engineering Multiple-Choice Questions

1. Which of these methods is the most appropriate if we want to determine a soil’s water content?

a. pycnometer method

b. oven drying method

c. calcium carbide method

d. sand bath method

2. The soil’s uniformity coefficient is:

a. always equal to 1

b. equal to or less than 1

c. equal to or greater than 1

d. always less than 1

Answer: (c) equal to or greater than 1

3. The range of various slit particles, according to the IS classification, is:

a. 0.425 to 0.075 mm

b. 2.00 to 0.425 mm

c. 4.75 to 2.00 mm

d. 0.075 to 0.002 mm

Answer: (d) 0.075 to 0.002 mm

4. A dispersed soil structure type refers to an arrangement consisting of particles that have:

a. parallel or face to face orientation

b. edge to edge orientation

c. edge to face orientation

d. All of the above

Answer: (a) parallel or face to face orientation

5. In the case of a plate loading test that determines the soil’s bearing capacity, the square bearing plate’s size must be:

a. less than 300 mm

b. between 300 mm and 750 mm

c. between 750 mm and 1 m

d. Greater than 1 m

Answer: (b) between 300 mm and 750 mm

6. The voids ratio of a soil mass is capable of:

a. being zero

b. taking only the values between 0 and 1

c. never being greater than unity

d. taking any value that is greater than zero

Answer: (d) taking any value that is greater than zero

7. Which of these refer to the water content of the soil that represents any boundary present between the liquid state and the plastic state?

a. liquid limit

b. plastic limit

c. shrinkage limit

d. none of the above

8. We use the pycnometer for determining the:

a. Voids ratio & the dry density

b. specific gravity & the dry density

c. water content & the specific gravity

d. water content & the voids ratio

Answer: (c) water content & the specific gravity

9. What are the sand particles made of?

a. rock minerals

b. montmorillonite

c. illite

d. kaolinite

10. Which of these is the most suitable method used in the drainage of the cohesive soils that are fine-grained?

a. vacuum method

b. electroosmosis method

c. well-point system

d. All of the above

11. Which of these will best compact the coarse-grained soils?

a. drum roller

b. rubber tyred roller

c. vibratory roller

d. All of the above

12. What is the ratio of the total volume of voids to the volume of the soil mass known as?

a. percentage air voids

b. voids ratio

c. air content

d. porosity

13. What would be a soil termed as if the voids present in a soil mass happen to only be full of air?

a. partially saturated soil

b. dry soil

c. dehydrated soil

d. air-entrained soil

14. In case the soil mass’s plasticity index is zero, then the soil would be:

a. Sand

b. Slit

c. Clayey Slit

d. All of the above

15. By what are residual soils formed?

a. glaciers

b. water

c. wind

d. None of the above

Answer: (d) None of the above

16. The water content of any given soil can:

a. be comparatively lesser than 0%

b. never be comparatively greater than 100%

c. be comparatively greater than 100%

d. only take values from 0-100%

Answer: (c) be comparatively greater than 100%

17. Gravitational force transports which of these types of soils?

a. loess

b. talus

c. drift

d. dune sand

18. On a very normal consolidated day, in a consolidated drained test, the total volume of the available soil sample during the shearing:

a. increases

b. remains unchanged

c. first decreases then increases

d. decreases

19. When the sand in-situ happens to be in its densest state, then the sand’s relative density would be:

a. Greater than 1

b. Between 0 & 1

c. 1

d. None of these

20. What angle does a Coulomb’s failure envelope make with its horizontal?

a. cohesion

b. the angle of internal friction

c. the angle of repose

d. none of the above