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

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
by

1 Answer

Answer :

(B) Angle of internal friction only
by

Related questions

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

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Last Answer : (c) 3 only

The rise of water table below the foundation influences the bearing capacity of soil mainly by reducing (A) Cohesion and effective angle of shearing resistance (B) Cohesion and effective unit weight of soil (C) Effective unit weight of soil and effective angle of shearing resistance (D) Effective angle of shearing resistance

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Last Answer : Answer: Option B

A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m² when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively (A) 0.5 N/mm² and 30° (B) 0.05 N/mm² and 0° (C) 0.2 N/mm² and 0° (D) 0.05 N/mm² and 45°

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Select the incorrect statement. (A) Effective cohesion of a soil can never have a negative value. (B) Effective angle of internal friction for coarse grained soils is rarely below 30°. (C) Effective angle of internal friction for a soil increases as state of compactness increases. (D) Effective angle of internal friction is a complicated function of mineralogy and clay size content.

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The angle that Coulomb's failure envelope makes with the horizontal is called (A) Cohesion (B) Angle of internal friction (C) Angle of repose (D) None of the above

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State any four assumptions made in Terzaghi’s analysis if bearing capacity of soil.

Description : State any four assumptions made in Terzaghi’s analysis if bearing capacity of soil.

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Rise of water table in cohesion-less soils upto ground surface reduces the net ultimate bearing capacity approximately by (A) 25 % (B) 50 % (C) 75 % (D) 90 %

Description : Rise of water table in cohesion-less soils upto ground surface reduces the net ultimate bearing capacity approximately by (A) 25 % (B) 50 % (C) 75 % (D) 90 %

Last Answer : (B) 50 %

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

Which of the following is not depends on shear strength of the material? (A) Cohesion (B) Internal friction (C) Normal stress (D) Mass of the material

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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

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Last Answer : Answer: Option D

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

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Free surface of a liquid tends to contract to the smallest possible area due to force of (A) Surface tension (B) Viscosity (C) Friction (D) Cohesion

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Last Answer : Answer: Option A

Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the (A) Force of adhesion (B) Force of cohesion (C) Force of friction (D) Force of diffusion

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Last Answer : Answer: Option B

A 600 mm square bearing plate settles by 15 mm in plate load test on a cohesion-less soil under an intensity of loading of 0.2 N/ram². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is (A) 15 mm (B) Between 15 mm and 25 mm (C) 25 mm (D) Greater than 25 mm

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The workability of concrete is defined as the (a) Ease with which it can be mixed, transported and placed in position in a homogeneous state. (b) Bearing up of cohesion in a mass concrete. (c) Separation of water from the freshly mixed concrete. (d) None of these.

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Last Answer : (a) Ease with which it can be mixed, transported and placed in position in a homogeneous state.

A cell of emf E and internal resistance r is connected in series with an external resistance nr. Than what will be the ratio of the terminal potential

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The passive earth pressure of a soil is proportional to (where is the angle of internal friction of the soil.) (A) tan (45° - ) (B) tan (45° + ) (C) tan2 (45° - ) (D) tan2 (45° + )

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The coefficient of active earth pressure for a loose sand having an angle of internal friction of 30° is (A) 1/3 (B) 3 (C) 1 (D) 1/2

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The earth pressure of a soil at rest, is proportional to (where is the angle of internal friction of the soil) (A) tan (45° - ) (B) tan (45° + ) (C) tan2 (45° - ) (D) None of these

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Which one of the following statements is true for Mohr-Coulomb envelope? (A) Coulomb suggests that the relationship between shear strength and normal stress, is adequately represented by the straight line (B) The generalised Mohr theory suggests that, though the shear stress depends on the normal stress, the relation is not linear (C) Coulomb and Mohr suggest that a definite relationship exists among the principal stress and the angle of internal friction (D) All the above

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The angle of internal friction is maximum for (A) angular-grained loose sand (B) angular-grained dense sand (C) round-grained dense sand (D) round-grained loose sand

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The angle of internal friction of clays, is usually (A) 0° to 5° (B) 5° to 20° (C) 20° to 30° (D) 30° to 45

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The intensity of active earth pressure at a depth of 10 metres in dry cohesionless sand with an angle of internal friction of 30° and with a weight of 1.8 t/m3 , is (A) 4 t/m2 (B) 5 t/m2 (C) 6 t/m2 (D) 7 t/m2

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The angle of internal friction, is least for (A) Angular-grained loose sand (B) Angular -grained dense sand (C) Round-grained loose sand (D) Clays

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The shear strength of a soil (A) Is directly proportional to the angle of internal friction of the soil (B) Is inversely proportional to the angle of internal friction of the soil (C) Decreases with increase in normal stress (D) Decreases with decrease in normal stress

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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

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The internal molecular attraction of a soil, the cohesion (A) Decreases as the moisture content increases (B) Increases as the moisture content decreases (C) Is more in well compacted clays (D) Depends upon the external applied load

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Allowable bearing pressure for a foundation depends upon (A) Allowable settlement only (B) Ultimate bearing capacity of soil only (C) Both allowable settlement and ultimate bearing capacity (D) None of above

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Question No. 205 The pile which supports the load partly by friction and partly by resting on hard stratum, is called (A) Friction pile (B) Bearing pile (C) Friction bearing pile (D) Rough pile

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Pick up the incorrect statement from the following: (A) The width of the wall is constructed thicker at the base in a stepped fashion (B) A long vertical load transferring concrete structure is called a concrete pile (C) In pile which transfers the load to the soil by the friction between the pile and the surrounding soil is called friction pile (D) The pile which transfers the load to a hard rock bed at certain depth is called load bearing

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The side slope of formation in embankment /cutting depends on a) Shearing strength of soil and its angle of repose* b) Angle of repose c) Bearing capacity of the soil d) Optimum moisture content of the soil

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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 

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Consider the following statements: 1. The benefit of surcharge and depth of foundation is only marginal in case of footings on purely cohesive soils. 2. The bearing capacity of a footing in pure clay increases with increase in size of the footing. 3. Size effects in plate load tests are more important in case of cohesionless soils. 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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When a cohesionless soil attains quick condition, it looses (A) Shear strength (B) Bearing capacity (C) Both (a) and (b) (D) Neither (a) nor (6

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Last Answer : Answer: Option D

Consider the following statements: 1. Standard penetration test is commonly used for cohesionless soils. 2. Standard penetration test results in respect of a cohesionless soil are correlated to its density index and friction angle. 3. Use of H-value not corrected for overburden pressure leads to highly conservative design of footings at shallow depths. 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) Only 1 and 2

Increase in values of which of the following results in an increase of the coefficient of friction in a hydrodynamic bearing? [IES 2007] 1. Viscosity of the oil. 2. Clearance between shaft and bearing. 3. Shaft speed. Select the using the code given below: (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d) 1, 2 and 3

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Last Answer : (b) 1 and 3 only

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Last Answer : (A) High co-efficient of friction between journal and bearing

Negative skin friction on piles (A) Is caused due to relative settlement of the soil (B) Is caused in soft clays (C) Decreases the pile capacity (D) All of the above

Description : Negative skin friction on piles (A) Is caused due to relative settlement of the soil (B) Is caused in soft clays (C) Decreases the pile capacity (D) All of the above

Last Answer : Answer: Option D

Consider the following statements: 1. Relative density is a meaningful parameter for all types of soils 2. Relative density is a meaningful parameter only for cohesion soils. 3. Relative density is a better indicator of the denseness of an in-situ granular soil deposit than the void ratio. 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 : (d) 1 & 3 only

Which one of the following statements is true? (A) Clays are more porous than sands (B) Pressure of organic matter in a soil decreases the bearing capacity of the soil (C) Aluminous cement is used for foundations in soils with chemical deposits (D) All the above

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Last Answer : (D) All the above

The maximum net pressure intensity causing shear failure of soil, is known (A) Safe bearing capacity (B) Net safe bearing capacity (C) Net ultimate bearing capacity (D) Ultimate bearing capacity

Description : The maximum net pressure intensity causing shear failure of soil, is known (A) Safe bearing capacity (B) Net safe bearing capacity (C) Net ultimate bearing capacity (D) Ultimate bearing capacity

Last Answer : (C) Net ultimate bearing capacity

The maximum pressure which a soil can carry without shear failure, is called (A) Safe bearing capacity (B) Net safe bearing capacity (C) Net ultimate bearing capacity (D) Ultimate bearing capacity

Description : The maximum pressure which a soil can carry without shear failure, is called (A) Safe bearing capacity (B) Net safe bearing capacity (C) Net ultimate bearing capacity (D) Ultimate bearing capacity

Last Answer : (A) Safe bearing capacity

In the plate loading test for determining the bearing capacity of soil, the size of square bearing plate should be (A) Less than 300 mm (B) Between 300 mm and 750 mm (C) Between 750 mm and 1 m (D) Greater than 1 m

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Last Answer : (B) Between 300 mm and 750 mm

Select the incorrect statement. (A) Bearing capacity of a soil depends upon the amount and direction of load (B) Bearing capacity of a soil depends on the type of soil (C) Bearing capacity of a soil depends upon shape and size of footing (D) Bearing capacity of a soil is independent of rate of loading

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Last Answer : Answer: Option A

The ultimate bearing capacity of a soil, is (A) Total load on the bearing area (B) Safe load on the bearing area (C) Load at which soil fails (D) Load at which soil consolidates

Description : The ultimate bearing capacity of a soil, is (A) Total load on the bearing area (B) Safe load on the bearing area (C) Load at which soil fails (D) Load at which soil consolidates

Last Answer : Answer: Option C

For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of (A) 5 mm (B) 10 mm (C) 15 mm (D) 25 mm

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The maximum load carried by a pile, when it continues to sink without further increase of load, is known as (A) Ultimate load carrying capacity (B) Ultimate bearing capacity (C) Ultimate bearing resistant (D) All the above

Description : The maximum load carried by a pile, when it continues to sink without further increase of load, is known as (A) Ultimate load carrying capacity (B) Ultimate bearing capacity (C) Ultimate bearing resistant (D) All the above

Last Answer : Answer: Option D