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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Rituraj Borthakur posted an Question
February 22, 2023 • 04:04 am
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30 points
30 points
- IIT JAM
- Geology (GG)
Q.36 which of the following is/are used to estimate the strength of a rock mass? options kriging 2. 2 rqd 3. resistivity api gravity
Q.36 Which of the following is/are used to estimate the strength of a rock mass? Options Kriging 2. 2 RQD 3. Resistivity API gravity
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Asif ali![best-answer]()
correct answer is RQD. Explanation:- Kriging is a interpolation method on the concept of Random function with a known Spatial covariance uses mostly Gaussian Model. Kriging mostly uses in Remote Sensing to interpolate the discontinuous datasets of an Area. Resisting Survey is an electrical method to differentiate the resistivity values of different types of stratified layers of rocks. It doesn't uses for Rock mass rather than resistivity profiling. API gravity value is a Well logging technique uses for bulk density of a Rock. Gamma log is uses mostly for API survey. RQD also uses in ROCK MASS RATING and Q system of Bartons as well as Rock Quality Designation in logging.