What is called the cohesive property of water?

What is called the cohesive property of water?
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This property due to the formation of hydrogen bonds between water molecules is the cause of the water molecules sticking.
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What is called cohesive property of water?

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Pick out the wrong statement. (A) Surface tension of a liquid is because of the difference in magnitude of adhesive & cohesive forces(B) A hydrometer used for the determination of specific gravities of liquidsworks on the principle of buoyant forces(C) In case of unsteady fluid flow, the velocity at any given point does notchange with time(D) Turbulent fluid flow is characterised by the rapid fluctuation ofinstantaneous pressure & velocity at a poin

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If the cohesive force (c), is 1.5 t/m2 , the density ) of the soil is 2.0 t/m3 , factor of safety (F) is 1.5 and stability factor (Sn) is 0.05, the safe height of a slope, is (A) 5 metres (B) 8 metres (C) 10 metres (D) 12 metres

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If S, L and R are the arc length, long chord and radius of the sliding circle then the perpendicular distance of the line of the resultant cohesive force, is given by (A) a = S.R/L (B) a = L.S/R (C) a = L.R/S (D) None of these

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A 300 mm square bearing plate settles by 15 mm in a plate load test on a cohesive soil when the intensity of loading is 0.2 N/mm². The settlement of a prototype shallow footing 1 m square under the same intensity of loading is (A) 15 mm (B) 30 mm (C) 50 mm (D) 167 mm

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

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If a cohesive soil specimen is subjected to a vertical compressive load, the inclination of the cracks to the horizontal is (A) 90° (B) 45° (C) 22.5° (D) 0

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On wetting, cohesive soils, (A) Loose permeability (B) Gain shear strength (C) Loose elasticity (D) Decrease their shear strength

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Contact pressure beneath a rigid footing resting on cohesive soil is (A) Less at edges compared to middle (B) More at edges compared to middle (C) Uniform throughout (D) None of the above

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In a purely cohesive soil, the critical centre lies at the intersection of (A) Perpendicular bisector of slope and the locus of the centre (B) Perpendicular drawn at 1/3rd slope from toe and the locus of the centre (C) Perpendicular drawn at 2/3rd slope from toe and the locus of the centre (D) Directional angles

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The most suitable method for drainage of fine grained cohesive soils is (A) Well point system (B) Vacuum method (C) Deep well system (D) Electro-osmosis method

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The bearing capacity of a soil depends upon (A) Size of the particles (B) Shape of the particles (C) Cohesive properties of particles (D) All the above

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In active state of plastic equilibrium in a non cohesive soil with horizontal ground surface (A) Major principal stress is horizontal (B) Minor principal stress is vertical (C) Major principal stress is vertical (D) Minor and major principal stresses are equally inclined to horizontal

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The change of moisture content of soils, changes the (A) Value of the angle of repose (B) Amount of compaction required (C) Cohesive strength of soil (D) All the above

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The design of a retaining wall assumes that the retained earth (A) Is dry (B) Is free from moisture (C) Is not cohesive (D) All the above

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The Auger borings are not common (A) In soils that require lateral support (B) In cohesive soils (C) In soft soils (D) None of the above

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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.

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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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Write any four assumptions of Rankine’s theory made for non-cohesive soils.

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Differentiate between Cohsionless soil and purely cohesive soil

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Fat can be separated from milk in a cream separator because of: (1) Cohesive force (2) Gravitational force (3) Centripetal force (4) Centrifugal force

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Surface tension in a liquid is due to : (1) Adhesive force between molecules (2) Cohesive force between molecules (3) Gravitational force between molecules (4) Electrical force between molecules.

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Define Cohesive force and Adhesive force

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