Geotechnical Engineering

Soil Structure

Question 1
Marks : +2 | -2
Pass Ratio : 50%
The secondary valence force caused by orientation effect is commonly known as ____________
Vander Waal’s force
Dispersion energy
Induced effect
Polarisibility
Explanation:
Vander Waal’s force is the common attractive force acting between all atoms and molecules of matter.
Question 2
Marks : +2 | -2
Pass Ratio : 50%
The hydrogen bond occurs when ____________
Atoms of hydrogen strongly attracted by two other atoms
Molecules of one atom bonding to atom of another
Atom of hydrogen is attracted by one atom
None of the mentioned
Explanation:
When the atoms of hydrogen strongly attracted by two other atoms, hydrogen bond tends to occur.
Question 3
Marks : +2 | -2
Pass Ratio : 50%
The nature of surface bonding force in soil is classified in to ___________ types.
3
4
2
5
Explanation:
The nature of surface bonding is classified into three types as primary valence bond, hydrogen bond, secondary valence bond.
Question 4
Marks : +2 | -2
Pass Ratio : 50%
The strength of hydrogen bond lies between the value of ____________
20-200
5-100
0.5-5
10-100
Explanation:
The strength of hydrogen bond is between 5-10 Kcal per g-mole.
Question 5
Marks : +2 | -2
Pass Ratio : 50%
Flocculation is caused by increasing ___________
Electrolytic concentration
Ion valence
Temperature
All of the mentioned
Explanation:
The factor in a soil-water system affecting flocculation is electrolyte concentration, temperature and dielectric constant or ion valence.
Question 6
Marks : +2 | -2
Pass Ratio : 50%
There are __________ types of primary valence bond.
5
4
6
2
Explanation:
Covalent bond, heterpolar pond, ionic pond and co-ordinate bond are the five types of primary valence bond.
Question 7
Marks : +2 | -2
Pass Ratio : 50%
The ionic bond, sometimes may be also called as ____________
Electrovalent bond
Covalent bond
Metallic bond
Heteropolar bond
Explanation:
As there is an exchange of electrons between soil particles in an ionic pond, it is also called a ionic bond.
Question 8
Marks : +2 | -2
Pass Ratio : 50%
Which of the following bond is considered to be strongest?
Covalent bond
Heterpolar bond
Ionic bond
Co-ordinate bond
Explanation:
The ionic bond occurs by exchange of electron in the union of ions which make it stronger.
Question 9
Marks : +2 | -2
Pass Ratio : 50%
Intermolecular distance of bond in secondary valence bond is ____________
1-2
2-3
0.5-5
>5
Explanation:
Interatomic or intermolecular distance of secondary valence bond is >5 Ã….
Question 10
Marks : +2 | -2
Pass Ratio : 50%
Atoms in one molecule bonding to atom in another molecule are called ____________
Primary valence bond
Secondary valence bond
Hydrogen bond
Electrostatic bond
Explanation:
The bonding takes between two different molecules rather than the same hence it is called a secondary valence bond.