The size of ultra fine coal particles are
A. 28 mm
B. -28 mm
C. -30 mm
D. 30 mm
Answer: Option B
This Question Belongs to Mining Engineering >> Mining Geology
Related Questions on Mining Geology
On the basis of which content the igneous rocks are classified as acid rocks and basic rocks?
A. Magnetite
B. Hematite
C. Bauxite
D. Silica
Origin of Solar System divided in two groups, which are
A. Evolutionary and catastrophic
B. Nebula and gaseous tidal hypo
C. Jeansand Jeffires
D. A and B both
A. Attrition
B. Deflation
C. Denudation
D. Mantle
Join The Discussion