Over-consolidation of soils is caused due to (A) Erosion of over burden (B) Melting of ice sheets after glaciations (C) Permanent rise of water table (D) All the above

Over-consolidation of soils is caused due to
(A) Erosion of over burden
(B) Melting of ice sheets after glaciations
(C) Permanent rise of water table
(D) All the above
by

1 Answer

Answer :

Answer: Option D
by

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Settlement due to creep in soils is contingent on : (a) Primary consolidation (b) Secondary consolidation (c) Initial settlement (d) Compaction settlement

Description : Settlement due to creep in soils is contingent on : (a) Primary consolidation (b) Secondary consolidation (c) Initial settlement (d) Compaction settlement

Last Answer : (b) Secondary 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

Description : 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 ... 1, 2 and 3 (b) 2, 3 and 1 (c) 1, 3 and 2 (d) 2, 1 and 3

Last Answer : (c) 1, 3 and 2

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 %

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

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

Description : 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

Last Answer : Answer: Option D

Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise

Description : Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise

Last Answer : (A)Global warming

Ice glacier’s melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in (1) Greenland (2) Antarctica (3) Himalayas (4) Arctic

Description : Ice glacier’s melting is a common phenomenon linked to the rise in seawater level. The glaciers are predominantly present in (1) Greenland (2) Antarctica (3) Himalayas (4) Arctic

Last Answer : Antarctica

The compressibility of clays is caused due to: (A) Expulsion of double layer water from in between the grains (B) Sliping of particles to new positions of greater density (C) Bending of particles as elastic sheets (D) All the above

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Last Answer : (D) All the above

During percussion drilling (A) Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole (B) Caving or mixing of strata are caused in soft soils or cohesionless soils (C) The soil to a considerable depth below the bottom of the hole gets disturbed (D) All the above

Description : During percussion drilling (A) Ground water observations are hindered due to entry of the slurry in the soil below the bottom of the hole (B) Caving or mixing of strata are caused in soft soils or ... The soil to a considerable depth below the bottom of the hole gets disturbed (D) All the above

Last Answer : Answer: Option D

The reduction in volume of soil due to squeezing out of water from the voids, is termed (A) Primary consolidation (B) Primary compression (C) Primary time effect (D) All the above

Description : The reduction in volume of soil due to squeezing out of water from the voids, is termed (A) Primary consolidation (B) Primary compression (C) Primary time effect (D) All the above

Last Answer : Answer: Option D

Sea level rise results primarily due to: (A) Heavy rainfall (B) Melting of glaciers (C) Submarine volcanism (D) Seafloor spreading

Description : Sea level rise results primarily due to: (A) Heavy rainfall (B) Melting of glaciers (C) Submarine volcanism (D) Seafloor spreading

Last Answer : (B) Melting of glaciers

Increasing human population put pressure on the natural resources such as land, soil, water, fossil fuels etc. IT causes - I. Soil erosion II. Salinization of soils III. DesertificationIV. Eutrophicationa. I and IIb. I, II and IIIc. III and IVd. I, II, III and IV

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Last Answer : d. I, II, III and IV

Soils in the Mahanadi delta are less fertile than those in the Godavari delta because of: (A) erosion of top soils by annual floods (B) inundation of land by sea water (C) traditional agriculture practices (D) the derivation of alluvial soil from red-soil hinterland

Description : Soils in the Mahanadi delta are less fertile than those in the Godavari delta because of: (A) erosion of top soils by annual floods (B) inundation of land by sea water (C) traditional agriculture practices (D) the derivation of alluvial soil from red-soil hinterland

Last Answer : Answer: A  The Mahanadi was notorious for its devastating floods for much of recorded history. Thus it was called 'the sorrow of Orissa'. However the construction of the Hirakud Dam has greatly ... matter of great concern. Indiscriminate damming along the river has been cited as an obvious reason.

A soil not fully consolidated under the existing over-burden pressure, is called (A) Pre-consolidated (B) Normally consolidated (C) Over-consolidated (D) None of these

Description : A soil not fully consolidated under the existing over-burden pressure, is called (A) Pre-consolidated (B) Normally consolidated (C) Over-consolidated (D) None of these

Last Answer : Answer: Option C

A clay subjected to pressure in excess to its present over-burden, is said to be (A) Pre-compressed (B) Pre-consolidated (C) Over-consolidated (D) All the above

Description : A clay subjected to pressure in excess to its present over-burden, is said to be (A) Pre-compressed (B) Pre-consolidated (C) Over-consolidated (D) All the above

Last Answer : Answer: Option D

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

Auger boring (A) Is the most primitive method for making a hole in the ground (B) Is generally employed in cohesive and other self soils above water table (C) Is most economical upto a depth of 5 metres (D) All the above

Description : Auger boring (A) Is the most primitive method for making a hole in the ground (B) Is generally employed in cohesive and other self soils above water table (C) Is most economical upto a depth of 5 metres (D) All the above

Last Answer : Answer: Option D

The maximum value of effective stress in the past divided by the present value is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is (A) Less than 1 (B) 1 (C) More than 1 (D) None of these

Description : The maximum value of effective stress in the past divided by the present value is defined as over consolidation ratio (OCR). The O.C.R. of an over consolidated clay is (A) Less than 1 (B) 1 (C) More than 1 (D) None of these

Last Answer : (C) More than 1

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

Which one of the following clays behaves like a dense sand? (A) Over-consolidated clay with a high over-consolidation ratio (B) Over-consolidated clay with a low over-consolidation ratio (C) Normally consolidated clay (D) Under-consolidated clay

Description : Which one of the following clays behaves like a dense sand? (A) Over-consolidated clay with a high over-consolidation ratio (B) Over-consolidated clay with a low over-consolidation ratio (C) Normally consolidated clay (D) Under-consolidated clay

Last Answer : Answer: Option A

A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point reduces (C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)

Description : A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point ... C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)

Last Answer : (B) Due to the high pressure at the base, its melting point reduces

Piping in a soil mass is a) Erosion of subsoil by the high velocities of flow of water through it when such velocities exceed a certain limit* b) Caused due to very low exit gradient c) Due to continuous passage of water through a series of well connected pores d) Due to loss of the strength of cohesion less soil because of upward flow of of water

Description : Piping in a soil mass is a) Erosion of subsoil by the high velocities of flow of water through it when such velocities exceed a certain limit* b) Caused due to very low exit gradient c) ... connected pores d) Due to loss of the strength of cohesion less soil because of upward flow of of water

Last Answer : a) Erosion of subsoil by the high velocities of flow of water through it when such velocities exceed a certain limit*

In clay soil (A) Swelling and shrinkage characteristics prevail (B) Consolidation continues even after several years of construction (C) Differential settlement is generally prevalent (D) All the above

Description : In clay soil (A) Swelling and shrinkage characteristics prevail (B) Consolidation continues even after several years of construction (C) Differential settlement is generally prevalent (D) All the above

Last Answer : Answer: Option D

What percentage of fresh water is stored as ice sheets and glaciers? -Geography

Description : What percentage of fresh water is stored as ice sheets and glaciers? -Geography

Last Answer : 70% 96.5% of the total volume of the earth consists of water out of which 2.5% is fresh water. Out of the 2.5% of the total freshwater present on the earth, 70% of the fresh ... in glaciers and ice sheets in Antarctica, Greenland and mountainous regions. Less than 30% is stored as groundwater.

Not a source of fresh water. (a) Glaciers and ice sheets. (b) Ground water. (c) Surface runoff. (d) Oceans.

Description : Not a source of fresh water. (a) Glaciers and ice sheets. (b) Ground water. (c) Surface runoff. (d) Oceans.

Last Answer : (d) Oceans.

What is A long period of climate cooling during which ice sheets spread beyond the polar regions is called a?

Description : What is A long period of climate cooling during which ice sheets spread beyond the polar regions is called a?

Last Answer : ?

how do glaciers and ice sheets Change the earths crust?

Description : how do glaciers and ice sheets Change the earths crust?

Last Answer : Continental ice sheets press down the Earth's crust. They deposit rich soil over the land. Glaciers carve valleys out of rock.

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

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

Description : 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

Last Answer : Answer: Option D

Select the correct statement. (A) Unit weight of dry soil is greater than unit weight of wet soil (B) For dry soils, dry unit weight is less than total unit weight (C) Unit weight of soil increases due to submergence in water (D) Unit weight of soil decreases due to submergence in water

Description : Select the correct statement. (A) Unit weight of dry soil is greater than unit weight of wet soil (B) For dry soils, dry unit weight is less than total unit weight (C) Unit weight of soil increases due to submergence in water (D) Unit weight of soil decreases due to submergence in water

Last Answer : Answer: Option D

Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Description : Pick up the incorrect statement from the following: (A) The smaller the size of the pores, the higher the water can rise above the water table (B) Below the water table, the pore water may be static (C) The hydrostatic pressure depends on the depth below the water level (D) None of these

Last Answer : Answer: Option D

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

Description : 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 ... weight of soil and effective angle of shearing resistance (D) Effective angle of shearing resistance

Last Answer : Answer: Option B

Rise of water table above the ground surface causes (A) Equal increase in pore water pressure and total stress (B) Equal decrease in pore water pressure and total stress (C) Increase in pore water pressure but decrease in total stress (D) Decrease in pore water pressure but increase in total stress

Description : Rise of water table above the ground surface causes (A) Equal increase in pore water pressure and total stress (B) Equal decrease in pore water pressure and total stress (C) Increase in ... pressure but decrease in total stress (D) Decrease in pore water pressure but increase in total stress

Last Answer : Answer: Option A

Lead pipe is (A) Especially resistant to solutions containing H2SO4 (B) Usually joined by burning (e.g. by melting to adjacent pieces with a torch) (C) Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain (D) All (A), (B) and (C)

Description : Lead pipe is (A) Especially resistant to solutions containing H2SO4 (B) Usually joined by burning (e.g. by melting to adjacent pieces with a torch) (C) Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C

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

Last Answer : (C) Consolidated undrained test

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 ratio of settlement at any time 't' to the final settlement, is known as (A) Co-efficient of consolidation (B) Degree of consolidation (C) Consolidation index (D) Consolidation of undisturbed soil

Description : The ratio of settlement at any time 't' to the final settlement, is known as (A) Co-efficient of consolidation (B) Degree of consolidation (C) Consolidation index (D) Consolidation of undisturbed soil

Last Answer : (B) Degree of consolidation

The ultimate consolidation settlement of a soil is (A) Directly proportional to the voids ratio (B) Directly proportional to the compression index (C) Inversely proportional to the compression index (D) None of the above

Description : The ultimate consolidation settlement of a soil is (A) Directly proportional to the voids ratio (B) Directly proportional to the compression index (C) Inversely proportional to the compression index (D) None of the above

Last Answer : (B) Directly proportional to the compression index

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

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

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

Description : 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 ... 20, the number of days required (A) 3233 (B) 3123 (C) 33331 (D) 3313

Last Answer : Answer: Option C

Degree of consolidation is (A) Directly proportional to time and inversely proportional to drainage path (B) Directly proportional to time and inversely proportional to square of drainage path (C) Directly proportional to drainage path and inversely proportional to time (D) Directly proportional to square of drainage path and inversely proportional to time

Description : Degree of consolidation is (A) Directly proportional to time and inversely proportional to drainage path (B) Directly proportional to time and inversely proportional to square of drainage path (C ... to time (D) Directly proportional to square of drainage path and inversely proportional to time

Last Answer : Answer: Option B

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

A stratum of clay 2 m thick will get consolidated 80% in 10 years. For the 80% consolidation of 8 m thick stratum of the same clay, the time required is (A) 100 years (B) 120 years (C) 140 years (D) 160 years

Description : A stratum of clay 2 m thick will get consolidated 80% in 10 years. For the 80% consolidation of 8 m thick stratum of the same clay, the time required is (A) 100 years (B) 120 years (C) 140 years (D) 160 years

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

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

Description : 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

Last Answer : Answer: Option D

The ultimate consolidation settlement of a structure resting on a soil (A) Decreases with the increase in the initial voids ratio (B) Decreases with the decrease in the plastic limit (C) Increases with the increase in the initial voids ratio (D) Increases with the decrease in the porosity of the soil

Description : The ultimate consolidation settlement of a structure resting on a soil (A) Decreases with the increase in the initial voids ratio (B) Decreases with the decrease in the plastic limit (C) Increases ... increase in the initial voids ratio (D) Increases with the decrease in the porosity of the soil

Last Answer : Answer: Option A

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