Explain the objective of rock mass classification schemes, RMR and Q, why RQD is important to such schemes, what the main components are and what the main differences are. Organize your comparisons and contrasts in itemized lists. In a run of 5 ft of NQ core (1.875 in. diameter), fractures are observed at 2.4, 5.3, 8.2, 14.2, 17.7, 25.3, 29.3, 34.3, 36.9, 47.5, and 54.8 in. measured along the core from one end to the other. Find the RQD.