STUPIDSID
1 (a)
Write note on origin of soil. Add your note with type of soil in Gujarat.
7 M
1 (b)
Define weathering and erosion of rocks. Describe chemical weathering of rocks.
7 M
2 (a)
Write short note on (i) Particle size distribution curve (ii) soil water.
7 M
Answer any one question from Q2 (b) & Q2 (c)
2 (b)
What is seismic wave? Discuss all the types of seismic waves of an earthquake.
7 M
2 (c)
Write note on ground water investigation methods.
7 M
Answer any two question from Q3 (a), (b) & Q3 (c), (d)
3 (a)
What is soil consistency? How consistency limit in different states of soil is determined?
7 M
3 (b)
A soil sample has a diameter of 38 mm and a height of 76 mm. Its wet weight is 1.15 N. Upon drying its weight reduced to 0.5 N. Specific gravity is 2.7. In the wet state what was the degree of saturation and the water content of the soil sample. Determine the void ratio and the porosity. Also find out total unit weight and the dry unit weight.
7 M
3 (c) (i)
Write short note on (*) Hardness property (*) Luster property of mineral.
4 M
3 (c) (ii)
What is texture in rock? Write briefly texture of sedimentary rocks.
3 M
Solve
3 (d) (i)
A soil has liquid limit 30% and plastic limit of 25 %. Determine its toughness index if its flow index is 15%. Also find the liquidity index and relative consistency of the soil if it has a natural water content of 25%.
4 M
3 (d) (ii)
Find out the group index for the soil with % passing 75 micron sieve= 70, liquid limit=50% and plastic limit = 24%.
3 M
Answer any two question from Q4 (a), (b) & Q4 (c), (b)
4 (a) (i)
What is pore water in soil? Explain capillary water rise and its importance.
4 M
4 (a) (ii)
Calculate the maximum capillary rise in a tube of 0.5 mm diameter. Take surface tension=0.076 N/m and unit weight of water 9810 N/m3.
3 M
4 (b)
What is fold? Differentiate anticline - Syncline fold. Define all parts of the fold.
7 M
4 (c) (i)
Define permeability and seepage. Explain factors affecting the permeability.
4 M
4 (c) (ii)
A stratified soil deposit consists of three layers of equal thickness and different composition. The permeability of layers are 2×10-3, 1×10-3, 5×10-4 cm/sec. Calculate the average permeability of deposit in horizontal and vertical directions. (Assume thickness).
3 M
4 (d)
How fault can be recognized in the field? Write note on importance of fold, faults for the site selection in civil engineering projects.
7 M
Answer any two question from Q5(a), (b) & Q5 (c), (d)
5 (a)
Write notes on (i) seepage pressure (ii) Classification of soil
7 M
5 (b)
Write note on Geological consideration in hard and soft rock tunnels.
7 M
5 (c)
Define sphericity, flatness, elongation and angularity of soil particles and their importance.
7 M
5 (d)
Discuss application of Remote sensing and GIS technique for civil engineering.
7 M
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