Select the correct statement below with regards to bit type and the DOMINANT rock failure mechanism. a. PDC bits – shear failure; roller cone bits – compressive failure b. PDC bits – compressive failure; roller cone bits – shear failure c. There is no one dominant rock failure mechanism for PDC and roller cone bits d. PDC bits – erosion by fluid jet action of the nozzles; roller cone bits – wedging

Select the correct statement below with regards to bit type and the DOMINANT rock failure mechanism. a. PDC bits – shear failure; roller cone bits – compressive failure b. PDC bits – compressive failure; roller cone bits – shear failure c. There is no one dominant rock failure mechanism for PDC and roller cone bits d. PDC bits – erosion by fluid jet action of the nozzles; roller cone bits – wedging

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.12P

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