Granite is a medium to...-grained * .intrusive igneous rock fine medium coarse
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- Q- What is the most important feature of Slate rock when used in construction? It is characterized by hard rock and low porosity. O It is a low cost material. O Non of them. Seldom used due to the scarcity of its production.B- Give the value for the following: 1 Ratio of the Aluminum in whole carth. 2 The thickness of the Atmosphere. 3 Poisson ratio range for rocks. 4 Range of the tunnels diameter in TBM (Tunnel Boring Machines) method. 5 Hardness of Quartz in Mohs scale.When . is subjected to sufficient pressure, the minerals in it move in the same direction, forming flat plates, and they * .turn into a Gneiss rock rocks O gabbro O granite O
- Briefly discuss the geological occurence, strength and bearing capacity characteristics as well as the engineering value of the following rocks Limestone Schist Sandstone Granite BasaltDistinction between clay minerals and nonclay minerals.QUESTION 1 (a) List the 10 minerals in the Moh’s hardness scale, from the softest one to the hardest one. (b) According to the definition of minerals, point out which one is a mineral among the following ones (quartz, water, ice, coal, petroleum). (c) Indicate the differences between color and streak, using magnetite, hematite and limonite as examples. (d) State the difference between cleavage and fracture of minerals, using quartz and mica as examples. QUESTION 2 (a) What is the theory of plate tectonics? (b) State the two (2) types of plates and three (3) types of boundaries. (c) How many percent do sedimentary rocks take in the crust (volume) and in the continents area? (d) What are major mineral components in sedimentary rocks? QUESTION 3 (a) Define the following terms with sketches where appropriate: i) Rock deformation ii) Strike iii) Dip iv) Dip angle (b) What is the difference between normal and reverse faults? Show diagrams
- What is the relationship between the silica structure and the Bowen's reaction discontinuous series?Match the stability to the clay type: Kaolinite Choose. Choose Intermediate stability Ilite Montmorillonite Least stable Most stableName two minerals in your set that have two directions of cleavage at right angles, and the third direction is fracture.
- (i) A 10-mm-diameter Brinell hardness indenter produced an indentation 2.50 mm in diameter in a steel alloy when a load of 1000 kg was used. Compute the HB of this material. (ii) What will be the diameter of an indentation to yield a hardness of 300 HB when a 500-kg load is used?Hardness 6.54 (a) A 10-mm-diameter Brinell hardness indenter O produced an indentation 2.50 mm in diameter in a steel alloy when a load of 1000 kg was used. Compute the HB of this material. (b) What will be the diameter of an indentation to yield a hardness of 300 HB when a 500-kg load is used?Montmorollonite clay is the same as illite clay except for the potassium cations Select one: True False