For testing a saturated clay for shear strength, the test recommended, is (A) Direct shear test (B) Triaxial compression test (C) Unconfined compression test (D) All the above

For testing a saturated clay for shear strength, the test recommended, is
(A) Direct shear test
(B) Triaxial compression test
(C) Unconfined compression test
(D) All the above
by

1 Answer

Answer :

Answer: Option C
by

Related questions

AA saturated clay is to be tested for shearing strength. Which test should be recommended? a) Direct shear test b) Triaxial shear test c) Vane shear test d) Unconfined compression*

Description : A saturated clay is to be tested for shearing strength. Which test should be recommended? a) Direct shear test b) Triaxial shear test c) Vane shear test d) Unconfined compression*

Last Answer : d) Unconfined compression*

Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct shear test (C) The confining pressure is maximum during an unconfined compression test (D) The cylindrical specimen of a soil is subjected to major principal stress till it fails due to shearing along the plane of the failure

Description : Pick up the correct statement from the following: (A) An unconfined compression test is a special case of triaxial compression test (B) An unconfined compression test is a special case of direct ... subjected to major principal stress till it fails due to shearing along the plane of the failure

Last Answer : Option A

Select the incorrect statement. (A) In a direct shear box test, the plane of shear failure is predetermined (B) Better control is achieved on the drainage of the soil in a triaxial compression test (C) Stress distribution on the failure plane in the case of triaxial compression test is uniform (D) Unconfined compression test can be carried out on all types of soils

Description : Select the incorrect statement. (A) In a direct shear box test, the plane of shear failure is predetermined (B) Better control is achieved on the drainage of the soil in a triaxial compression ... compression test is uniform (D) Unconfined compression test can be carried out on all types of soils

Last Answer : Answer: Option D

Unconfined compression test it most suitable for determining the : 1. Sensitivity of clays 2. Settlement of embankments 3. ‘Strength’ of partially saturated clay sample 4. ‘Strength’ of fully saturated clay sample (a) 1, 2, 3 and 4 (b) 2 and 3 only (c) 3 and 4 only (d) 1 and 4 only

Description : Unconfined compression test it most suitable for determining the : 1. Sensitivity of clays 2. Settlement of embankments 3. ‘Strength’ of partially saturated clay sample 4. ‘Strength’ of fully saturated clay sample (a) 1, 2, 3 and 4 (b) 2 and 3 only (c) 3 and 4 only (d) 1 and 4 only

Last Answer : (d) 1 and 4 only

For the determination of shear strength parameters, c and , of soil in the laboratory, the test to be conducted will be (a) Triaxial compression test (b) Sieve analysis (c) Compaction test (d) Relative density test

Description : For the determination of shear strength parameters, c and , of soil in the laboratory, the test to be conducted will be (a) Triaxial compression test (b) Sieve analysis (c) Compaction test (d) Relative density test

Last Answer : (a) Triaxial compression test

In the triaxial compression test, the application of additional axial stress (i.e. deviator stress) on the soil specimen produces shear stress on (A) Horizontal plane only (B) Vertical plane only (C) Both horizontal and vertical planes (D) All planes except horizontal and vertical planes

Description : In the triaxial compression test, the application of additional axial stress (i.e. deviator stress) on the soil specimen produces shear stress on (A) Horizontal plane only (B) Vertical plane only (C) Both horizontal and vertical planes (D) All planes except horizontal and vertical planes

Last Answer : (D) All planes except horizontal and vertical planes

A triaxial shear test is preferred to direct shear test, because (A) It can be performed under all three drainage conditions with complete control (B) Precise measurement of pore pressure and change in volume during test, is not possible (C) Stress distribution on the failure plane, is non uniform (D) None of these

Description : A triaxial shear test is preferred to direct shear test, because (A) It can be performed under all three drainage conditions with complete control (B) Precise measurement of pore pressure and change in ... possible (C) Stress distribution on the failure plane, is non uniform (D) None of these

Last Answer : Answer: Option A

For shear strength, triaxial shear test is suitable because (A) It can be performed under all three drainage conditions (B) Precise measurement of the pore pressure and volume change during the test is possible (C) Stress distribution on the failure plane, is uniform (D) All the above

Description : For shear strength, triaxial shear test is suitable because (A) It can be performed under all three drainage conditions (B) Precise measurement of the pore pressure and volume change during the test is possible (C) Stress distribution on the failure plane, is uniform (D) All the above

Last Answer : (D) All the above

Sensitivity of a soil can be defined as (A) Percentage of volume change of soil under saturated condition (B) Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state (C) Ratio of volume of voids to volume of solids (D) None of the above

Description : Sensitivity of a soil can be defined as (A) Percentage of volume change of soil under saturated condition (B) Ratio of compressive strength of unconfined undisturbed soil to that of soil in a remoulded state (C) Ratio of volume of voids to volume of solids (D) None of the above

Last Answer : Answer: Option B

In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator stress at constant cell pressure), the test is known as (A) Consolidated drained test (B) Consolidated undrained test (C) Unconsolidated drained test (D) Unconsolidated undrained test

Description : In a triaxial compression test when drainage is allowed during the first stage (i. e. application of cell pressure) only and not during the second stage (i.e. application of deviator ... test (B) Consolidated undrained test (C) Unconsolidated drained test (D) Unconsolidated undrained test

Last Answer : (B) Consolidated undrained test

A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is (A) 2/3 (B) 5/4 (C) 4/5 (D) 8/7

Description : A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is (A) 2/3 (B) 5/4 (C) 4/5 (D) 8/7

Last Answer : Answer: Option D

The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated (A) Sands (B) Clays (C) Gravels (D) Highly organic soils

Description : The vane shear test is used for the in-situ determination of the undrained strength of the intact fully saturated (A) Sands (B) Clays (C) Gravels (D) Highly organic soils

Last Answer : (B) Clays

Pick up the correct statement from the following: (A) Isotropic consolidation of clay can be obtained in the triaxial apparatus under equal all￾round pressure (B) If the present effective stress is the maximum to which the clay has ever been subjected, it is called normally consolidated clay (C) If the present effective stress in the past was more than present effective stress, it is called over-consolidated clay (D) All the above

Description : Pick up the correct statement from the following: (A) Isotropic consolidation of clay can be obtained in the triaxial apparatus under equal all￾round pressure (B) If the present effective stress is the ... more than present effective stress, it is called over-consolidated clay (D) All the above

Last Answer : Answer: Option D

Consider the following statements: 1. For a saturated soil, Skempton’s B-parameter is nearly equal to unity. 2. For an undisturbed sensitive clay, the stress-strain curve shows a peak. 3. Interlocking contributes significantly to the shearing strength in case of dense sand. 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. For a saturated soil, Skempton's B-parameter is nearly equal to unity. 2. For an undisturbed sensitive clay, the stress-strain curve shows a peak. 3. Interlocking contributes significantly to the shearing ... 2 & 3 (b) 1 & 2 only (c) 2 & 3 only (d) 1 & 3 only

Last Answer : (a) 1, 2 & 3

Pick up the incorrect definition from the following: (A) Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample (B) The rotation of soil particles into stable state while remoulding, is known as the thiostropy of soil (C) The water content at which a soil flows, is known plastic limit of the soil (D) None of these

Description : Pick up the incorrect definition from the following: (A) Ratio of the compressive strength of unconfined undisturbed soil to that of remoulded soil, is known as the sensitivity of the soil sample (B) The ... content at which a soil flows, is known plastic limit of the soil (D) None of these

Last Answer : Answer: Option D

The shear strength in plastic undrained clay, is due to (A) Inter-granular friction (B) Internal friction (C) Cohesion (D) None of these

Description : The shear strength in plastic undrained clay, is due to (A) Inter-granular friction (B) Internal friction (C) Cohesion (D) None of these

Last Answer : (C) Cohesion

Pick up the correct statement from the following: (A) Sandy clayloam contains highest percentage of sand (B) Silty clayloam contains highest percentage of silt (C) Stiff boulder clay offers maximum shear strength (D) Soft chalk carries least safe load

Description : Pick up the correct statement from the following: (A) Sandy clayloam contains highest percentage of sand (B) Silty clayloam contains highest percentage of silt (C) Stiff boulder clay offers maximum shear strength (D) Soft chalk carries least safe load

Last Answer : Answer: Option B

Critical shear stress of cohesive sediment (a) Decreases with the void ratio for a given plasticity index (b) Increases with the plasticity index for a given void ratio (c) Increases with shear strength for a given clay content (d) All of the above.

Description : Critical shear stress of cohesive sediment (a) Decreases with the void ratio for a given plasticity index (b) Increases with the plasticity index for a given void ratio (c) Increases with shear strength for a given clay content (d) All of the above.

Last Answer : (c) Increases with shear strength for a given clay content

Consider the following statements: For pure clay, the shear strength parameters will be 1. Cohesion c = 0; and angle of internal friction  will be maximum. 2. Cohesion c is maximum; and angle of internal friction  is also maximum. 3. Angle of internal friction  is zero, with some value of cohesion c. Which of these statements is/are correct? (a) 1, 2 & 3 (b) 1 only (c) 3 only (d) 2 only

Description : Consider the following statements: For pure clay, the shear strength parameters will be 1. Cohesion c = 0; and angle of internal friction  will be maximum. 2. Cohesion c is maximum; and angle of internal friction  is also maximum. ... is/are correct? (a) 1, 2 & 3 (b) 1 only (c) 3 only (d) 2 only

Last Answer : (c) 3 only

The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. The total height of confined aquifer H is given by (A) H = h2 - h1 (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Description : The coefficients of permeability of soils of an unconfined aquifer and another confined aquifer were determined by pumping water from the wells and observing the effect of water table in two test wells at equal distances was found to be equal. ... (B) H = h1 - h2 (C) H = h2 + h1 (D) ½ (h1 + h2)

Last Answer : Answer: Option D

During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mm² to 0.26 N/mm², the pore water pressure increases from 0.07 N/mm² to 0.15 N/mm². Skempton's pore B (A) 0.5 (B) -0.5 (C) 2.0 (D) -2.0

Description : During the first stage of triaxial test when the cell pressure is increased from 0.10 N/mm² to 0.26 N/mm², the pore water pressure increases from 0.07 N/mm² to 0.15 N/mm². Skempton's pore B (A) 0.5 (B) -0.5 (C) 2.0 (D) -2.0

Last Answer : (A) 0.5

The length/diameter ratio of cylindrical specimens used in triaxial test, is generally (A) 1 (B) 1.5 (C) 2 (D) 2.5

Description : The length/diameter ratio of cylindrical specimens used in triaxial test, is generally (A) 1 (B) 1.5 (C) 2 (D) 2.5

Last Answer : Answer: Option C

The triaxial apparatus is usually used for (A) Unconsolidated-undrained test (B) Consolidated-undrained test (C) Drained test (D) All the above tests

Description : The triaxial apparatus is usually used for (A) Unconsolidated-undrained test (B) Consolidated-undrained test (C) Drained test (D) All the above tests

Last Answer : Answer: Option D

In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear (A) Decreases (B) Increases (C) Remains unchanged (D) First increases and then decreases

Description : In a consolidated drained test on a normally consolidated clay, the volume of the soil sample during shear (A) Decreases (B) Increases (C) Remains unchanged (D) First increases and then decreases

Last Answer : (A) Decreases

Explain the direct shear test to determine shear strength of soil.

Description : Explain the direct shear test to determine shear strength of soil.

Last Answer : Procedure for Direct Shear Test: 1. Take 2.5 Kg air dried soil sample passing through 4.75 mm and retained on 2.36mm IS sieve. 2. Measure the internal dimensions of the shear box. Fix ... value Normal Stress as abscissa and the maximum shearing stress as ordinate to find shear strength of soil.

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

Description : 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 ... Both neutral pressure and effective pressure decrease (D) Both neutral pressure and effective pressure increase

Last Answer : Answer: Option B

In concrete compression test, normally 150mmx150mmx150mm concrete cube samples is used for testing. Why isn’t 100mmx100mmx100mm concrete cube samples used in the test instead of 150mmx150mmx150mm concrete cube samples?

Description : In concrete compression test, normally 150mmx150mmx150mm concrete cube samples is used for testing. Why isn’t 100mmx100mmx100mm concrete cube samples used in the test instead of 150mmx150mmx150mm concrete cube samples?

Last Answer : Basically, the force supplied by a concrete compression machine is a definite value. For normal concrete strength application, say below 50MPa, the stress produced by a ... cube size of 150mmx150mmx150mm is already sufficient for the crushing strength of the machine.

Suitability of steel for its use in cable is judged by its strength in (A) Tension (B) Compression (C) Torsion (D) Shear

Description : Suitability of steel for its use in cable is judged by its strength in (A) Tension (B) Compression (C) Torsion (D) Shear

Last Answer : (A) Tension

A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number of active coils is 10. If the mean coil diameter is reduced to 10 mm, the stiffness of the spring is approximately a. increased by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times

Description : A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 Mpa and 80 Gpa respectively. The mean coil diameter is 20mm, free length is 40 mm, and the number ... by 8 times b. decreased by 2 times c. increased by 2 times d. decreased by 8 times

Last Answer : a. increased by 8 times

the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and horizontal (C) The slope of the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Description : the derivation of Thiem's formula, Q = (S1 - S2)/[2.3 log10( / )] the following assumption is not applicable (A) The aquifer is homogeneous and isotropic (B) Flow lines are radial and ... the water surface is too small (D) The well has been sunk up to the surface of the unconfined aquifer

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) Perched aquifer is found in unconfined aquifer (B) The top surface of the water held in the perched aquifer, is known as perched water table (C) Perched aquifer is formed in unfined acquirer if an impervious layer exists (D) All the above

Description : Pick up the correct statement from the following: (A) Perched aquifer is found in unconfined aquifer (B) The top surface of the water held in the perched aquifer, is known as perched water table (C) Perched aquifer is formed in unfined acquirer if an impervious layer exists (D) All the above

Last Answer : Answer: Option D

If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?

Description : If concrete compression test fails, should Schmidt hammer test be adopted as an alternative test to prove the concrete strength?

Last Answer : The Scmidt hammer test is based on the elastic rebound of hammer which presses on concrete surface and it measures the surface hardness of concrete. Since the test is very sensitive to the ... strength of concrete. Therefore, it may not be considered a good substitute for concrete compression test.

Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C) Curing of concrete is done for proper compaction of cement (D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Description : Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Last Answer : Option D

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

direct shear test possesses the following disadvantage: (A) A relatively thin thickness of sample permits quick drainage (B) A relatively thin thickness of sample permits quick dissipation of pore pressure developed during the test (C) As the test progresses the area under shear, gradually changes (D) None of these

Description : direct shear test possesses the following disadvantage: (A) A relatively thin thickness of sample permits quick drainage (B) A relatively thin thickness of sample permits quick dissipation of pore pressure ... C) As the test progresses the area under shear, gradually changes (D) None of these

Last Answer : Answer: Option C

Los Angeles testing machine is used to conduct (A) Abrasion test (B) Impact test (C) Attrition test (D) Crushing strength test

Description : Los Angeles testing machine is used to conduct (A) Abrasion test (B) Impact test (C) Attrition test (D) Crushing strength test

Last Answer : Answer: Option A

The possible loading in various members of framed structures are (A) Compression or tension (B) Buckling or shear (C) Shear or tension (D) All of the above

Description : The possible loading in various members of framed structures are  (A) Compression or tension  (B) Buckling or shear  (C) Shear or tension  (D) All of the above 

Last Answer : (A) Compression or tension

The shear reinforcement in R.C.C. is provided to resist (A) Vertical shear (B) Horizontal shear (C) Diagonal compression (D) Diagonal tension

Description : The shear reinforcement in R.C.C. is provided to resist (A) Vertical shear (B) Horizontal shear (C) Diagonal compression (D) Diagonal tension

Last Answer : Answer: Option D

Shear resistance of concrete in a reinforced concrete beam is dependent on (a) Tension reinforcement in the beam (b) Compression reinforcement in the beam (c ) Shear reinforcement in the beam (d) None of the reinforcements in the beam

Description : Shear resistance of concrete in a reinforced concrete beam is dependent on (a) Tension reinforcement in the beam (b) Compression reinforcement in the beam (c ) Shear reinforcement in the beam (d) None of the reinforcements in the beam

Last Answer : (a) Tension reinforcement in the beam

A concrete block subjected to shear stresses, then the failure may result by [ A ] Diagonal tension [ B ] Longitudinal tension [ C ] Diagonal compression [ D ] None of the above

Description : A concrete block subjected to shear stresses, then the failure may result by [ A ] Diagonal tension [ B ] Longitudinal tension [ C ] Diagonal compression [ D ] None of the above

Last Answer : [ A ] Diagonal tension

Asbestos cement (A) Is brittle (B) Warps due to changes in humidity (C) Strength is lowered when saturated by water (D) All of the above

Description : Asbestos cement (A) Is brittle (B) Warps due to changes in humidity (C) Strength is lowered when saturated by water (D) All of the above

Last Answer : Answer: Option D

PROBLEM FA sample of soft saturated clay weighs 350 grams and has a volume of 205cc. After oven drying, the soil weighs 225 grams. Calculate the values of saturated unit weight, void ratio, porosity and specific gravity?

Description : PROBLEM FA sample of soft saturated clay weighs 350 grams and has a volume of 205cc. After oven drying, the soil weighs 225 grams. Calculate the values of saturated unit weight, void ratio, porosity and specific gravity?

Last Answer : {

In clay soils, the fields often have to be fully saturated tillage can be undertaken. A. Before. C) After B. Beginning. D) Middle

Description : In clay soils, the fields often have to be fully saturated tillage can be undertaken. A. Before. C) After B. Beginning. D) Middle

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The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is (A) 4 (B) 8 (C) 12 (D) 20

Description : The ratio of the undrained strength in the undrained state to the undrained strength, at the same water content, in the remoulded state, is called the sensivity of the clay. Its value for quick clays is (A) 4 (B) 8 (C) 12 (D) 20

Last Answer : (D) 20

In a deposit of normally consolidated clay (A) Effective stress increases with depth but water content of soil and undrained strength decrease with depth (B) Effective stress and water content increase with depth but undrained strength decreases with depth C) Effective stress and undrained strength increase with depth but water content decreases with depth (D) Effective stress, water content and undrained strength decrease with depth

Description : In a deposit of normally consolidated clay (A) Effective stress increases with depth but water content of soil and undrained strength decrease with depth (B) Effective stress and water ... decreases with depth (D) Effective stress, water content and undrained strength decrease with depth

Last Answer : C) Effective stress and undrained strength increase with depth but water content decreases with depth

Yield strength of a material is determined by the __________ test. (A) Creep (B) Tension (C) Compression (D) Endurance

Description : Yield strength of a material is determined by the __________ test. (A) Creep (B) Tension (C) Compression (D) Endurance

Last Answer : Option B

The condition of refrigerant before entering the expansion or throttle valve, in a vapour compression system (a) dry vapour (b) wet vapour (c)liquid-vapour mixture (d) high pressure saturated liquid

Description : The condition of refrigerant before entering the expansion or throttle valve, in a vapour compression system (a) dry vapour (b) wet vapour (c)liquid-vapour mixture (d) high pressure saturated liquid

Last Answer : Ans: d

In a vapour compression cycle, the refrigerant immediately after expansion valve is (a) liquid (b) sub-cooled liquid (c) saturated liquid (d) wet vapour

Description : In a vapour compression cycle, the refrigerant immediately after expansion valve is (a) liquid (b) sub-cooled liquid (c) saturated liquid (d) wet vapour

Last Answer : Ans: d

In vapour compression cycle the condition off refrigerant is dry saturated vapour (a) after passing through the condenser (b) before passing through the condenser (c)before entering the expansion valve (d) before entering the compressor

Description : In vapour compression cycle the condition off refrigerant is dry saturated vapour (a) after passing through the condenser (b) before passing through the condenser (c)before entering the expansion valve (d) before entering the compressor

Last Answer : Ans: D

In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid (a) after passing through the condenser (b) before passing through the condenser (c) after passing through the expansion or throttle valve (d) before entering the expansion valve

Description : In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid (a) after passing through the condenser (b) before passing through the condenser (c) after passing through the expansion or throttle valve (d) before entering the expansion valve

Last Answer : Ans: d