Terzaghi's theory of one dimensional consolidation assumes (A) Load is applied in one direction (B) Coefficient of permeability is constant (C) Excess pore water drains out only in the vertical direction (D) All the above

Terzaghi's theory of one dimensional consolidation assumes
(A) Load is applied in one direction
(B) Coefficient of permeability is constant
(C) Excess pore water drains out only in the vertical direction
(D) All the above
by

1 Answer

Answer :

Answer: Option D
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Related questions

Consider the following statements: 1. Mathematically speaking, the time taken for 100% consolidation is infinite. 2. The time factor for a particular average degree of consolidation depends upon the distribution of initial excess hydrostatic pressure. 3. Secondary consolidation obeys Terzaghi’s one-dimensional theory of consolidation. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Description : Consider the following statements: 1. Mathematically speaking, the time taken for 100% consolidation is infinite. 2. The time factor for a particular average degree of consolidation depends upon the distribution of initial excess hydrostatic ... 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (b) 1 & 2 only

If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is known as (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these

Description : If drainage is permitted throughout the test, during the application of both normal, and shear stresses so that full consolidation occurs and no excess pore pressure is set up at any stage of the test, is ... (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these

Last Answer : Answer: Option B

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

Last Answer : Answer: Option D

If Cv is the coefficient of consolidation, is the time and is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by (A) Tv = d²/Cv t (B) Tv = t²/d²Cv (C) Tv = Cv3 /d²t (D) Tv = Cv t/dt

Description : If Cv is the coefficient of consolidation, is the time and is drainage path of one dimensional consolidation of soil, the time factor Tv, is given by (A) Tv = d²/Cv t (B) Tv = t²/d²Cv (C) Tv = Cv3 /d²t (D) Tv = Cv t/dt

Last Answer : Answer: Option D

Coefficient of consolidation of a soil is affected by (A) Compressibility (B) Permeability (C) Both compressibility and permeability (D) None of the above

Description : Coefficient of consolidation of a soil is affected by (A) Compressibility (B) Permeability (C) Both compressibility and permeability (D) None of the above

Last Answer : (C) Both compressibility and permeability

The compression resulting from a long term static load and consequent escape of pore water, is known as (A) Compaction (B) Consolidation (C) Swelling (D) None of these

Description : The compression resulting from a long term static load and consequent escape of pore water, is known as (A) Compaction (B) Consolidation (C) Swelling (D) None of these

Last Answer : (B) Consolidation

During consolidation process of clayey soils, indicate the sequence of occurrence of the following events in the order from first to last : 1. Load being taken up by the pore water 2. Load being taken up by the soil grains 3. Drainage of water from the pores of the soil (a) 1, 2 and 3 (b) 2, 3 and 1 (c) 1, 3 and 2 (d) 2, 1 and 3

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Last Answer : (c) 1, 3 and 2

Rankine's theory of earth pressure assumes that the back of the wall is (A) Plane and smooth (B) Plane and rough (C) Vertical and smooth (D) Vertical and rough

Description : Rankine's theory of earth pressure assumes that the back of the wall is (A) Plane and smooth (B) Plane and rough (C) Vertical and smooth (D) Vertical and rough

Last Answer : Answer: Option C

Rankine's theory of active earth pressure assumes (A) Soil mass is homogeneous, dry and cohesionless (B) Ground surface is a plane which may be horizontal or inclined (C) Back of the wall is vertical and smooth (D) All the above

Description : Rankine's theory of active earth pressure assumes (A) Soil mass is homogeneous, dry and cohesionless (B) Ground surface is a plane which may be horizontal or inclined (C) Back of the wall is vertical and smooth (D) All the above

Last Answer : Answer: Option D

The pressure that builds up in pore water due to load increment on the soil, is termed (A) Excess pore pressure (B) Excess hydrostatic pressure (C) Hydrodynamic pressure (D) All the above

Description : The pressure that builds up in pore water due to load increment on the soil, is termed (A) Excess pore pressure (B) Excess hydrostatic pressure (C) Hydrodynamic pressure (D) All the above

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability (B) The rate of flow of water through a vertical strip of the aquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility (C) The flow of water through aquifers, is governed by the Darcy's law (D) The term 'transmissibility' was introduced by Meinzer

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Coefficient of consolidation for clays normally (A) Decreases with increase in liquid limit (B) Increases with increase in liquid limit (C) First increases and then decreases with increase in liquid limit (D) Remains constant at all liquid limits

Description : Coefficient of consolidation for clays normally (A) Decreases with increase in liquid limit (B) Increases with increase in liquid limit (C) First increases and then decreases with increase in liquid limit (D) Remains constant at all liquid limits

Last Answer : (A) Decreases with increase in liquid limit

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

Description : 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 ... of consolidation (D) Independent of type of soil but depends on the stress history of soil

Last Answer : Answer: Option B

Coulomb's wedge theory assumes that (A) Back fill is dry, cohesionless, homogeneous and isotropic (B) Slip surface is the plane which passes through the heel of the wall (C) Position and direction of the resultant earth pressure are known (D) All the above

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Last Answer : (D) All the above

The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Description : The direct shear test suffers from the following disadvantage: (A) Drain condition cannot be controlled (B) Pore water pressure cannot be measured (C) Shear stress on the failure plane is not uniform (D) The area under the shear and vertical loads does not remain constant throughout the test

Last Answer : Answer: Option C

Consider the following statements: 1. Consolidation time increase with increasing compressibility 2. Consolidation time decreases with increasing permeability. 3. Consolidation time is dependent on the magnitude of stress increase. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Description : Consider the following statements: 1. Consolidation time increase with increasing compressibility 2. Consolidation time decreases with increasing permeability. 3. Consolidation time is dependent on the magnitude of stress increase. Which of these ... (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (b) 1 & 2 only

Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the aquifer is 30 m/day and its porosity is 0.25, the time of travel of an inert tracer from one well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

Description : Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction of flow. Heads of 50 m and 25 m are indicated at these two observation wells. If the coefficient of permeability for the ... well to another is (a) 75 days (b) 750 days (c) 1200 days (d) 3000 days

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Due to a rise in temperature, the viscosity and the unit weight of the percolating fluid are reduced to 60% and 90% respectively. If other things remain constant, the coefficient of permeability (A) Increases by 25 % (B) Increases by 50 % (C) Increases by 33.3 % (D) Decreases by 33.3 %

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Last Answer : (B) Increases by 50 %

The consolidation time for soils (A) Increases with increasing compressibility (B) Decreases with increasing permeability (C) Increases rapidly with increasing size of soil mass (D) All the above

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Last Answer : Answer: Option D

In -------------- theory management assumes that employees may be ambitious, self-motivated, and anxious to accept greater responsibility, and exercise self-control, self-direction, autonomy and empowerment. (a) Theory Y manager ; (b) Theory X manager ; (c) Theory Z manager ; (d) All of the above

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Skempton's pore pressure coefficient B for saturated soil is (A) 1 (B) Zero (C) Between 0 and 1 (D) Greater than 1

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A structure is erected on an impervious clay whose thickness is 12 m. Drainage is possible both at upper and lower surfaces. Coefficient of consolidation is 0.015 cm2 per minute. For attaining 50% consolidation with a time factor 0.20, the number of days required (A) 3233 (B) 3123 (C) 33331 (D) 3313

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Last Answer : Answer: Option C

Pick up the correct statement from the following: (A) Coefficient of compressibility is the decrease in void ratio per unit increase of pressure (B) The percent settlement at any time is called degree of consolidation (C) Time factor is a dimensionless quantity (D) All the above

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Last Answer : Answer: Option D

When drainage is permitted under initially applied normal stress only and full primarily consolidation is allowed to take place, the test is known as (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these

Description : When drainage is permitted under initially applied normal stress only and full primarily consolidation is allowed to take place, the test is known as (A) Quick test (B) Drained test (C) Consolidated undrained test (D) None of these

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Consider the following statements regarding Coulomb’s theory of earth pressure: 1. It is based on wedge theory of earth pressure. 2. It assumes the wall surface to be rough. 3. It may or may not satisfy the static equilibrium condition occurring in nature. Which of these statements are correct? (a) 1, 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

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Last Answer : (b) 1 & 2 only

Time factor for a clay layer is (A) A dimensional parameter (B) Directly proportional to permeability of soil (C) Inversely proportional to drainage path (D) Independent of thickness of clay layer

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Terzaghi's bearing capacity factors Nc, Nq and Nr are functions of (A) Cohesion only (B) Angle of internal friction only (C) Both cohesion and angle of internal friction (D) None of the above

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Last Answer : (B) Angle of internal friction only

A circular loop which is in the form of a major arc of a constant magnetic field B is applied in the vertical direction such that the magnetic lines o

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A sample of soil 10 cm height and 50 cm2 in c/s area water flows through the soil under a constant head of 80 cm. Water collected in 9 minutes is 450 C.C. Find the coefficient of permeability.

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Last Answer : Solution: 

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Last Answer : (A) cm/sec

Pick up the correct statement from the following: (A) When stress decreases, void, ratio decreases (B) When stress decreases, coefficient of permeability decreases (C) When stress decreases, coefficient of volume change decreases (D) When stress decreases void ratio, coefficients of permeability and volume change decrease

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Last Answer : Answer: Option A

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Within the consolidation process of a saturated clay (A) A gradual increase in neutral pressure and a gradual decrease in effective pressure take place and sum of the two is constant (B) A gradual decrease in neutral pressure and a gradual increase in effective pressure take place and sum of the two is constant (C) Both neutral pressure and effective pressure decrease (D) Both neutral pressure and effective pressure increase

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Description : The Zero Sum Game as employed by the supporters of game theory assumes that: A. The loss of one party is the gain of the other party B. The loss of one party is the loss of the other party as ... party D. The gain or loss of one party has nothing to do with the gain or loss of the other party

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The “Zero Sum Game” as employed by the supporters of “game theory” assumes that: A. The loss of one party is the gain of the other party B. The loss of one party is the loss of the other party as well C. The gain of one party is the gain of the other party D. The gain or loss of one party has nothing to do with the gain or loss of the other party

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Which one of the following is not correct in respect of the Theory X? (A) It emphasizes that most average human beings avoid to be led, want to lead (B) According to the theory X, the Managers tend to be autocratic (C) The theory X assumes that most human beings must be directly controlled in order to achieve organizational goals (D) The theory X assumes that most individuals have little ambition and want security

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Description : Kinetic theory of gases assumes that the collisions between the molecules are  (a) perfectly elastic  (b) perfectly inelastic  (c) partly elastic  (d) partly inelastic  (e) partly elastic and partly inelastic.

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State and explain the failure of soil on the basis of Terzaghi’s analysis

Description : State and explain the failure of soil on the basis of Terzaghi’s analysis 

Last Answer : On the basis of Terzaghi's analysis the three types of shear failure occurs; i. General shear failure: When footing is rested on dense sand or stiff clay, the settlement increases ... the settlement increases vertical diraction at particular loading is called as Punching shear failure.