SL52 CIVIL ENGINEERING MCQ AND SHORT TYPE QUESTION ANSWER

STUDY LESSON:-52 [CIVIL ENGINEERING]

For Competitive exams/Govt. jobs/Semester exam/Self Study Purpose

1. What will be the shrinkage limit of a soil sample if the volume and mass of that dry soil pat are 50 cm³ and 88gm respectively where the specific gravity is provided to be 2.71 ?

2. A soil sample having the following data Gs= 2.7, n=40% and w=20%.The degree of saturation of the soil is ___________

3.What will be the relative density of a soil if the void ratio at the densest condition,natural condition and in the loosest condition is 0.2, 0.4, 0.6 respectively?

4. What will be the void ratio of a soil if the porosity is 20%?
a) 0.10 b) 0.15 c) 0.20 d) 0.25

5. _____________ is that property o soil due to which loss of shear strength on remolding can be regained if left undisturbed for a certain time. 

6. Soil transported by wind are called as ___________

7. Unconfined compressive sensitivity(S_t) is the ratio of ______________

8. At zero air content soil is fully ___________

a) Unsaturated     b) Saturated     c) Unconfined     d) Confined

9. Terzaghi's one-dimensional consolidation assumes that 

a) e v_s log10 (p/p₀) relationship is linear     b) p v_s log10 e is linear     c) e v_s p relationship is linear     d) none of these

10. Coulomb's wedge theory for determining earth pressure assumes that 

a) the wall surface is circular     b) the wall surface is rough     c) the soil is non homogeneous and an-isotropic     d) none of these

Answers:-
1. 19.91%
2. 81.3% [Hints:- eS=WGs]
3. 50% [Hints:- e_max-e/ e_max-e_min]
4. d) 0.25[Hints:- e=(n/1-n)

5. Thixotropy

6. Aeolian soil

7. Strength of undisturbed soil/ Unconfined compressive strength of remoulded soil

8. b) Saturated

9.  c) ev_sp relationship is linear 

10. b) the wall surface is rough

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