As per IS, the internal diameter and height of the steel dolly used in core cutter test are __________ respectively.

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  1. 10 cm and 2.73 cm
  2. 10 cm and 3 cm
  3. 10 cm and 2.5 cm
  4. 11.7 cm and 1.5 cm

Answer (Detailed Solution Below)

Option 3 : 10 cm and 2.5 cm
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Concept:

Core cutter test:

  • This method is used to find in-situ unit weight in the case of fine-grained cohesive soils without stones.
  • This method cannot be used in the case of hard and gravelly soils.

Equipment used:

  1. Cylindrical core cutter, 100 mm internal diameter and 130 mm long.
  2. Steel rammer of mass 9 kg and overall length 900 mm
  3. Steel Dolley, 25 mm high and 100 mm diameter
  4. Weighing balance of accuracy up to 1 gm

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