Question

Match
List - II (Field test) with List - II (Suitability) and select the correct answer using the codes given below the lists :

List - I

A. Plate load test
B. Standard penetration test
C. Vane shear test
D. Dilatancy test

List - II

1. To estimate bearing capacity of granular soil
2. To estimate in-situ strength of soft clay
3. To identity silt from clay
4. To estimate bearing capacity for permissible settlement in clays

Codes :

A B C D

• A. 4 3 2 1
• B. 2 1 4 3
• C. 4 1 2 3
• D. 2 3 4 1

Answer 1

The correct option is C 4 1 2 3

(c) The distinction between silt & clay cannot be based on particle size because the significant physical properties of the two materials are related only indirectly to the size of particles. Further more, since both are microscopic, physical properties other than particle size must be used as criteria for field identification. Thus Dilatancy or Shaking test is used to distinguish between silts and clays.