Cohesive soils are generally (A) Plastic and also compressible (B) Elastic and also compressible (C) Plastic but incompressible (D) None of these

Cohesive soils are generally
(A) Plastic and also compressible
(B) Elastic and also compressible
(C) Plastic but incompressible
(D) None of these
by

1 Answer

Answer :

(A) Plastic and also compressible
by

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The change of moisture content of soils, changes the (A) Value of the angle of repose (B) Amount of compaction required (C) Cohesive strength of soil (D) All the above

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The Auger borings are not common (A) In soils that require lateral support (B) In cohesive soils (C) In soft soils (D) None of the above

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Write any four assumptions of Rankine’s theory made for non-cohesive soils.

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Pile foundation is generally provided if soil is (A) Compressible (B) Water logged (C) Made up (D) All the above

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Quicksand is a) Moist sand containing a small percentage of clay b) Is a condition which generally occurs in coarse sands c) Is a condition in which cohesive properties of soil increase rapidly d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water

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Last Answer : d) Is a condition in which a cohesion less soil loses its strength because of upward flow of water

The liquid limit and plastic limit exist in (A) Sandy soils (B) Silty soils (C) Gravel soils (D) Clay soils

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Last Answer : (D) Clay soils

Pick up the correct statement from the following: (A) In soils, the flow index indicates variation in shear strength with water content (B) Liquid limit minus plastic limit, is known as plasticity index of the soil (C) Plastic limit minus shrinkage limit, is known as shrinkage index of the soil (D) All the above

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Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The range of water content between the liquid limit and plastic limit is called plasticity index (B) The ratio of the liquid limit minus the natural water content to the plasticity index of soils, is called consistency index (C) The ratio of natural water content minus its plastic limit to its plasticity index is called liquidity index (D) All the above

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Last Answer : Answer: Option D

At yield point of a test piece, the material (A) Obeys Hooke's law (B) Behaves in an elastic manner (C) Regains its original shape on removal of the load(D) Undergoes plastic deformation

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Every material obeys the Hooke's law within its (A) Elastic limit (B) Plastic point (C) Limit of proportionality (D) None of these

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A member which does not regain its original shape after removed of load producing deformation is said (A) Plastic (B) Elastic (C) Rigid (D) None of these

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The stress at which extension of a material takes place more quickly as compared to the increase in load, is called (A) Elastic point (B) Plastic point (C) Breaking point (D) Yielding point

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Last Answer : (D) Yielding point

For structural analysis, Maxwell's reciprocal theorem can be applied to: (A) Plastic structures (B) Elastic structures (C) Symmetrical structures (D) All the above

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Terzaghi's analysis assumes: (A) Soil is homogeneous and isotropic (B) Elastic zone has straight boundaries inclined at = to the horizontal and plastic zones fully developed (C) Failure zones do not extend above the horizontal plane through the base of the footing (D) All the above

Description : Terzaghi's analysis assumes: (A) Soil is homogeneous and isotropic (B) Elastic zone has straight boundaries inclined at = to the horizontal and plastic zones fully developed (C) Failure zones do not extend above the horizontal plane through the base of the footing (D) All the above

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Which of the following conditions is to be satisfied both in elastic and plastic analyses? (a) Equilibrium condition (b) Yield condition (c ) Plastic moment condition (d) Mechanism condition

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The material in which large deformation is possible before absolute failure by rupture takes place, is known as (a) Ductile (b) Plastic (c) Brittle (d) Elastic

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Creep coefficient is the ratio of [ A ] Ultimate Creep strain to elastic strain [ B ] Elastic strain to ultimate Creep strain [ C ] Elastic strain to plastic strain [ D ] Plastic strain to elastic strain

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Last Answer : [ A ] Ultimate Creep strain to elastic strain

The coefficient of permeability of soils, is generally expressed in (A) cm/sec (B) cm/minute (C) cm2 /sec (D) cm2 /minute

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In soils possessing low bearing capacity, the type of foundation generally provided, is (A) Column footing (B) Grillage footing (C) Raft footing (D) All the above

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Last Answer : Option D

The ultimate Settlement of a soil is directly proportional to: (A) Depth of the compressible soil strata (B) Compressive index (C) Both (a) and (b) (D) None of these

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Last Answer : (D) None of these

17. The specific weight of compressible fluids does not remain constant. A) True B) False

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Last Answer : A

A point, in a compressible flow where the velocity of fluid is zero, is called (A) Critical point (B) Vena contractaC) Stagnation point (D) None of these

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Last Answer : Answer: Option C

The bulk modulus of elasticity (A) Has the dimensions of 1/pressure (B) Increases with pressure (C) Is large when fluid is more compressible (D) Is independent of pressure and viscosity

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Last Answer : Answer: Option B

A perfect gas (A) Has constant viscosity (B) Has zero viscosity (C) Is in compressible (D) None of the above

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Last Answer : Answer: Option D

Practical fluids (A) Are viscous (B) Possess surface tension (C) Are compressible(D) Possess all the above properties

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Last Answer : Answer: Option D

Negative skin friction (A) Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile (B) Develops due to lowering of ground water (C) Both (a) and (b) (D) Neither (a) not (b)

Description : Negative skin friction (A) Is a downward drag acting on a pile due to downward movement of the surrounding compressible soil relative to the pile (B) Develops due to lowering of ground water (C) Both (a) and (b) (D) Neither (a) not (b)

Last Answer : Answer: Option C

Which one of the following statements is correct ? a) For water at 100o Celsius at sea level, the vapour pressure is equal to atmospheric pressure b) Surface energy (or tension) is caused by the force of adhesion between liquid molecules c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions d) Air is 50,000 times more compressible than water

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Last Answer : c) Viscosity of a fluid is the property exhibited by it both in static and in dynamic conditions

Coefficient of compressibility is (A) Constant for any type of soil (B) Different for different types of soils and also different for a soil under different states of consolidation (C) Different for different types of soils but same for a soil under different states of consolidation (D) Independent of type of soil but depends on the stress history of soil

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If the cohesive force (c), is 1.5 t/m2 , the density ) of the soil is 2.0 t/m3 , factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of a slope, is (A) 5 metres (B) 8 metres (C) 10 metres (D) 12 metres

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