Question

Match List-I(Sampler) with List-II (Use) and select the correct answer using the codes given below the lists:
List-I
A. Split spoon sampler
B. Stationary piston sampler
C. Rotary sampler
D. Compressed air sampler
List-II
1. To obtain representative samples in all types of soil
2. To obtain undisturbed samples of sands below water table
3. To obtain undisturbed samples in clay and silts
4. To obtain approximately undisturbed samples of hard cemented cohesive soils

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

Answer 1

The correct option is C A- 1, B - 3, C - 4, D - 2

Rotary samplers are double walled samplers. It consists of a cutting bit in its outer tube which is used in case of hard cemented cohesive soils and rocks.