1.The skeleton and matrix structure represent ___________
a) Coarse-grained soil
b) Fine-grained soil
c) Composite soil
d) Loose-grained soil
Explanation: An arrangement of coarse grains forming a skeleton and matrix represent composite soils.
2. The soil structure, having comparative loose stable structure is ____________
a) Honey comb
b) Cohesive matrix
c) Flocculent
d) Single grained
Explanation: Honey comb structure is composed of loosely arranged bundle of particle. Hence they have comparatively less stable structure than others.
3. The honey comb, flocculent and dispersed structure are found in ___________
a) Fine-grained soil
b) Coarse grained soil
c) Composite soil
d) All of the mentioned
Explanation: Fine grained soil usually contains a combined structure of honeycomb, flocculent and dispersed.
4.Coarse-grain skeleton structure, consist of arrangement of __________
a) Soil forming honey comb structure
b) Coarse grain forming a skeleton
c) Soil oriented ‘edge-to-edge’ with one another
d) None of the mentioned
Explanation: An arrangement of coarse grains forming a skeleton with its interstices partly filled by relatively loose aggregation of the finest soil grains is shown in coarse-grained skeleton structure.
5.The particle of coarse-grained are composed of ___________
a) Primary minerals
b) Non-clay minerals
c) Clay minerals
d) Crystalline minerals
Explanation: Coarse-grained particle is usually made of primary minerals.
6. The fine-grained soil are composed of __________
a) Crystalline minerals and Amorphous materials
b) Primary minerals
c) All of the mentioned
d) None of the mentioned
Explanation: Many investigations by Girm (1959) show that the fine-grained soil is composed predominantly of crystalline minerals and amorphous materials.
7. The behavior of bulky particles in coarse grained soil is governed by ___________
a) Gravitational force and Mass energy
b) Colloidal force
c) All of the mentioned
d) None of the mentioned
Explanation: The bulky particle does not possess the property of plasticity and cohesion.
8. The crystalline minerals whose surface activity is such that, they develop cohesion and plasticity are called __________
a) Non-clay minerals
b) Clay minerals
c) Bulky particles
d) Primary minerals
Explanation: As the surface activity of clay minerals is high they develop a property of cohesion and plasticity.
9. Clay particles behave like ___________
a) Colloids
b) Amorphous solids
c) Crystalline particles
d) Non-colloids
Explanation: Clay minerals have high surface like colloids and are controlled by surface energy, they behave like colloids.
10. A montmorillonite platelet has a specific surface/volume equal to ____________
a) 120/μ
b) 100/ μ
c) 500/ μ
d) 1000/ μ
Explanation: Since the platelet of montmorillionite has a volume, 5 times greater than equivolume cube (200/ μ) its volume will be equal to 1000/ μ.