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Soil Mechanics and Foundation Engineering - Engineering

Q1:

Pick up the correct statement from the following:

A Illite bond is weaker than Kaolinite bond

B Illite bond is stronger than montmorillonite bond

C Illites do not swell when wet

D Illites are composed of two silica tetrahedralsheets with a central octahedral sheet

E All the above.

ANS:E - All the above.

  1. Illite bond is weaker than Kaolinite bond: This statement is generally correct. Illite minerals typically have weaker bonds compared to kaolinite minerals.
  2. Illite bond is stronger than montmorillonite bond: This statement is generally correct as well. Illite minerals generally have stronger bonds compared to montmorillonite minerals.
  3. Illites do not swell when wet: This statement is generally correct. Unlike montmorillonite, illite minerals do not exhibit significant swelling when they come into contact with water.
  4. Illites are composed of two silica tetrahedral sheets with a central octahedral sheet: This statement is accurate. Illite minerals are part of the mica group and are composed of two silica tetrahedral sheets with a central octahedral sheet.