GATE RQD

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GATE 2019
Q.23 For a dam site investigation, drilling was carried out up to a depth of 20 m. The total length of recovered core pieces, each over 100 mm, add up to 16 m. The Rock Quality Designation (RQD) of the foundation rock mass is __________%.

GATE 2015
Q.38 From the figure given below depicting a recovered core of a total length of 200 cm, the RQD (Rock Quality Designation) is_________%.

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