railway RRB JE (CBT I + CBT II) Mock Test 2024 Soil Mechanics and Foundation Engineering Site Investigation and Sub-Soil Exploration
If D1 & D3 are the inside diameters of the cutting edge and sample tube respectively and D2 & D4 are the outside diameters of the cutting edge and sample tube respectively, then the outside clearance of the sampler is determined using the relation:
1
\(\frac{D_2+D_4}{D_4}\times 100\)
2
\(\frac{D_3-D_1}{D_1}\times 100\)
3
\(\frac{D_2^2-D_1^2}{D_1^2}\times 100\)
4
\(\frac{D_2-D_4}{D_4}\times 100\)