This was a compulsory question in which the performance of the candidates was just fairly good. The types of surface mines are: stone aggregate quarry, dimension stone quarry, placer/alluvial mine, open pit, open cast/ strip mining, auger mining, glory holing, landfill mining, hydraulic mining, dredging, terrace mining, mountain top mining, highway mining, contour mining, leaching, sluicing and panning.