Ground Improvement Techniques Mid - II, April - 2015

1.The impermeable spacers used with in fine drains
  • Geo spacers
  • Geo grids
  • Geo fabrics
  • None
Answer: A
2.Geo membranes are manufactured from
  • Synthetic materials
  • Bituminous products
  • Both
  • None
Answer: C
3.Performance property of soil geo textile system is
  • Flexibility
  • Creep
  • Abrasion Resistance
  • None
Answer: B
4.For open areas of water such as dam lining and canals, these are used as protection measures
  • Geo grids
  • Geo filters
  • Geo membrane
  • Geo synthetic
Answer: C
5.General types of failure modes identified for embankments built on soft soils
  • Bearing capacity failure
  • Creep
  • Slope failure
  • None
Answer: A
6.Most widely used method of restraining the face material in a steep faced embankment is
  • Reinforced soil wall
  • Barrier method
  • Wrap around method
  • none
Answer: C
7.The three main components of _________are facing wall, reinforcement and select fill
  • Steep faced embankment
  • Reinforced soil wall
  • Both
  • None
Answer: B
8.Interlocking joints in panels and counter balancing pull from the soil reinforcement in the case of reinforced earth wall reduces mainly
  • Bending moment
  • Shear force
  • Torsion
  • None
Answer: A
9.A procedure in which a special soil is proportioned or a cementing material or other chemical material is added to a natural soil to improve its properties is called
  • Geo synthesizing
  • compaction
  • vibration
  • soil stabilization
Answer: D
10.Expansive soil consists of a mineral responsible for expansion property
  • Kaolinite
  • Illite
  • Montmorillonite
  • None
Answer: C
11.Binding of soil particles together without their alteration is referred to as soil stabilisation by _________________.
Answer: Cementing
12.Materials generally used for bituminous stabilisation are bitumen and ________.
Answer: Asphalt
13.Vinsol Resin, Rosin and Stabinol are ________ type of resins.
Answer: Natural
14.Chemicals which prevent or reduce the deleterious attack of water on soils under stabilisation technique are called _________.
Answer: Water proofers
15.____________ material is used for chemical stabilisation of expansive soils.
Answer: Calcium chloride or Gypsum
16.The number of bulbs in a under reamed pile foundation depends on __________.
Answer: Depth of loose soil
17.Aggregants and dispersants are the materials used for stabilisation of soils like ____________ .
Answer: Fine grained soils
18.Geotextile related products with large rectangular apertures are called ___________.
Answer: Geo grids
19.___________ is a structure for which a special hollow rod with rotating vanes is augured into the ground to the desired depth and the stabilising mixture is simultaneously inserted.
Answer: Soil lime column
20.Improvement of soil property by proportioning of coarse and fine grained soils is commonly referred to as ____________ stabilisation method.
Answer: Mechanical