Which of the following methods is more suitable for the determination of permeability of clayey soil? (A) Constant head method (B) Falling head method (C) Horizontal permeability test (D) None of the above

Which of the following methods is more suitable for the determination of permeability of clayey
soil?
(A) Constant head method
(B) Falling head method
(C) Horizontal permeability test
(D) None of the above
by

1 Answer

Answer :

Answer: Option B
by

Related questions

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Last Answer : Answer: Option A

Explain determination of coefficient of permeability by constant head method.

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When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the permeability of the soil, is (A) 0.0005 cm/sec (B) 0.001 cm/sec (C) 0.002 cm/sec (D) 0.01 cm/sec

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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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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

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In the coastal lowland of Kerala two crops of rice is grown per year because of: [IAS 2003] 1. high temperature in winter 2. adequate rain throughout the year 3. adequate irrigation facility 4. presence of water retentive clayey loam soil (a) Only 1 (b) 2 and 3 (c) 1 and 2 (d) 1, 3, and 4

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Identify the type of soil on the basis of the given characteristics - 1. They are rich in lime, iron, magnesia and alumina. 2. They are generally clayey, deep and impermeable. 3. They are mainly found in Maharashtra, Madhya Pradesh and Gujarat. Select the correct answer from the given alternatives - a. Laterite soil b. Red and yellow soil c. Saline soil d. Black soil

Description : Identify the type of soil on the basis of the given characteristics - 1. They are rich in lime, iron, magnesia and alumina. 2. They are generally clayey, deep and impermeable. 3. They are mainly found ... the given alternatives - a. Laterite soil b. Red and yellow soil c. Saline soil d. Black soil

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Pick out the wrong statement. (A) Loamy soil is the best soil for vigorous plant growth, while the clayey soil is solid and hence the plant roots penetrate with difficulty (B) Large excess use of nitrogenous fertiliser in land causes the problem of diarrhoea and cyanosis (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables (D) Cereal crops grown on alkaline soil absorb higher amount of fluorides thereby spreading fluorosis

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Last Answer : (C) Application of large excess of Potassic fertiliser in soil increases the valuable carotene in fruits and vegetables

Which of the following methods of contouring is most suitable for a hilly terrain? (A) Direct method (B) Square method (C) Cross-sections method (D) Tachometric method

Description : Which of the following methods of contouring is most suitable for a hilly terrain? (A) Direct method (B) Square method (C) Cross-sections method (D) Tachometric method

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Which of the following statements about continuous cardiac output monitoring are true? A. Continuous cardiac output monitoring may unmask events not detected by intermittent cardiac output measurements. B. Continuous cardiac output monitoring by the thermodilution method requires continuous infusion of fluid injectate at a constant rate and temperature. C. The major advantage of the Fick method over the thermodilution method of calculating cardiac output is that it is noninvasive, requiring only the determination of oxygen consumption by respiratory gas analysis. D. The technique of thoracic electrical bioimpedance utilizes sensors to determine stroke volume by detecting changes in resistance to a small, applied alternating current.

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Last Answer : Answer: AD DISCUSSION: Various techniques are available to measure cardiac output continuously. The advantages of continuous cardiac output monitoring, as compared with intermittent methods, are (1) ... function of the stroke volume, which then can be used to calculate the cardiac output

Depreciation (A) Costs (on annual basis) are constant when the straight line method is used for its determination (B) Is the unavoidable loss in the value of the plant, equipment and materials with lapse in time (C) Does figure in the calculation of income tax liability on cash flows from an investment (D) All (A), (B) and (C)

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

Compressibility of sandy soils is (A) Almost equal to that of clayey soils (B) Much greater than that of clayey soils (C) Much less than that of clayey soils (D) None of the above

Description : Compressibility of sandy soils is (A) Almost equal to that of clayey soils (B) Much greater than that of clayey soils (C) Much less than that of clayey soils (D) None of the above

Last Answer : (C) Much less than that of clayey soils

The Westergaard analysis is used for (A) Sandy soils (B) Cohesive soils (C) Stratified soils (D) Clayey soils

Description : The Westergaard analysis is used for (A) Sandy soils (B) Cohesive soils (C) Stratified soils (D) Clayey soils

Last Answer : (C) Stratified soils

The maximum total settlement for raft foundation on clayey soils should be limited to (A) 25 mm (B) 25 to 40 mm (C) 40 to 65 mm (D) 65 to 100 mm

Description : The maximum total settlement for raft foundation on clayey soils should be limited to (A) 25 mm (B) 25 to 40 mm (C) 40 to 65 mm (D) 65 to 100 mm

Last Answer : Answer: Option D

The minimum depth of foundation in clayey soils is (A) 0.5 m (B) 0.7 m (C) 0.9 m (D) 1.2 m

Description : The minimum depth of foundation in clayey soils is (A) 0.5 m (B) 0.7 m (C) 0.9 m (D) 1.2 m

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The maximum total settlement for isolated foundations on clayey soils should be limited to (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm

Description : The maximum total settlement for isolated foundations on clayey soils should be limited to (A) 25 mm (B) 40 mm (C) 65 mm (D) 100 mm

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Method used for the determination of lime requirement of an acid soil is

Description : Method used for the determination of lime requirement of an acid soil is

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Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than (A) 60°C (B) 80°C (C) 100°C (D) 110°C

Description : Determination of water content of a soil sample suspected to contain gypsum is made by drying the sample for longer period at a temperature not more than (A) 60°C (B) 80°C (C) 100°C (D) 110°C

Last Answer : (B) 80°C

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

The method of determination of indicated power of multi cylinder SI engine is by use of (a) Morse test (b) Prony brake test (c) Motoring test (d) Heat balance test

Description : The method of determination of indicated power of multi cylinder SI engine is by use of (a) Morse test (b) Prony brake test (c) Motoring test (d) Heat balance test

Last Answer : Ans : a

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 %

Description : 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 %

Last Answer : (B) Increases by 50 %

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

Pick up the incorrect statement from the following: (A) Compaction has no effect on the structure of a soil (B) Permeability decreases with increase in the dry density of a compacted soil (C) A wet side compacted soil is more compressible than a dry side compacted soil (D) Dry side compaction soils swell more when given access to moisture

Description : Pick up the incorrect statement from the following: (A) Compaction has no effect on the structure of a soil (B) Permeability decreases with increase in the dry density of a compacted soil (C) ... a dry side compacted soil (D) Dry side compaction soils swell more when given access to moisture

Last Answer : (A) Compaction has no effect on the structure of a soil

Accurate determination of water content, is made by (A) Calcium carbide method (B) Sand bath method (C) Alcohol method (D) Oven-drying method

Description : Accurate determination of water content, is made by (A) Calcium carbide method (B) Sand bath method (C) Alcohol method (D) Oven-drying method

Last Answer : (D) Oven-drying method

For determination of average annual precipitation in a catchment basin, the best method is (A) Arithmetical method (B) Thiessen's mean method (C) Isohyetal method (D) None of these

Description : For determination of average annual precipitation in a catchment basin, the best method is (A) Arithmetical method (B) Thiessen's mean method (C) Isohyetal method (D) None of these

Last Answer : Answer: Option C

In the method of voids for determination of the quantity of cement paste, it is assumed that (A) Voids in coarse aggregates are filled by fine aggregates (B) Voids in fine aggregates are filled by the cement paste (C) Volume of fine aggregates is equal to total voids in coarse aggregates plus 10% extra (D) All the above

Description : In the method of voids for determination of the quantity of cement paste, it is assumed that (A) Voids in coarse aggregates are filled by fine aggregates (B) Voids in fine aggregates are filled by ... of fine aggregates is equal to total voids in coarse aggregates plus 10% extra (D) All the above

Last Answer : Answer: Option D

Which of the following correspond to the recommendations of IRC for pavement thickness determination by CBR Method ? 1. CBR tests are to be conducted in-situ 2. Static compression is best adopted 3. The top 50 cm of sub grade should be compacted to as near the proctor density as possible (a) 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only

Description : Which of the following correspond to the recommendations of IRC for pavement thickness determination by CBR Method ? 1. CBR tests are to be conducted in-situ 2. Static compression is best adopted 3. The top 50 cm of sub grade ... 1, 2 and 3 (b) 1 and 2 only (c) 2 and 3 only (d) 1 and 3 only

Last Answer : (c) 2 and 3 only

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

Capacity of soil to absorb moisture, is generally known as (A) Permeability (B) Porosity (C) Infiltration capacity (D) Perviousness

Description : Capacity of soil to absorb moisture, is generally known as (A) Permeability (B) Porosity (C) Infiltration capacity (D) Perviousness

Last Answer : (C) Infiltration capacity

The capability of a soil mass of full width and depth to transmit water, is known (A) Porosity (B) Permeability (C) Transmissibility (D) None of these

Description : The capability of a soil mass of full width and depth to transmit water, is known  (A) Porosity  (B) Permeability  (C) Transmissibility  (D) None of these 

Last Answer : (B) Permeability 

If the permeability of a soil is 0.8 mm/sec, the type of soil is (A) Gravel (B) Sand (C) Silt (D) Clay

Description : If the permeability of a soil is 0.8 mm/sec, the type of soil is (A) Gravel (B) Sand (C) Silt (D) Clay

Last Answer : (B) Sand

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

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

Description : 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

Last Answer : (B) Directly proportional to permeability of soil