Question

Match List-I (Type of soil) with List-II (Compaction equipment) and select the correct answer using the codes given below the lists:
List - I

A. Wet clays and silts
B. Crushed rock
C. Fill soils
D. Sands

List - II

1. Smooth wheel rollers
2. Vibrators
3. Pneumatic tyred rollers
4. Grid rollers

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

Answer 1

The correct option is C

A B C D
4 1 3 2
Grid rollers are used for compaction of weathered rocks, well graded coarse soils. These rollers are not suitable for clayey soils, silty clay and uniform soils. The main use of these rollers are in subgrade and sub-base in road constructions.