CE-405 Engineering Geology & Remote Sensing - Nov 2023 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aDefine weathering. List and explain in detail about the different factors which cause weathering?
   How to answer

   • Define weathering as disintegration/decomposition of rocks at or near surface
   • List physical/mechanical factors
   • List chemical factors and biological factors
   • Explain each factor in detail with example
2. 7 Marks
   bDiscuss briefly about how ground water is formed? Write the importance of ground water.
   How to answer

   • Briefly describe hydrologic cycle and infiltration/percolation forming groundwater
   • Explain zones - vadose, phreatic, aquifers
   • Write importance for drinking, irrigation, industry, construction
3. 7 Marks
   aList and explain in detail about the major causes of earthquake.
   How to answer

   • Define earthquake
   • List major causes - tectonic, volcanic, collapse, anthropogenic
   • Explain plate tectonics, faults, elastic rebound in detail
   • Give examples
4. 7 Marks
   bWhat are minerals in engineering geology? What are essential minerals in geology explain with an example?
   How to answer

   • Define mineral in engineering geology context
   • Explain essential/rock-forming minerals concept
   • Give example e.g., quartz, feldspar, mica
   • Relevance to engineering properties
5. 7 Marks
   aExplain in detail about the properties that help geologists to identify a mineral in a rock with an example.
   How to answer

   • List physical properties - colour, streak, hardness, cleavage, lustre, specific gravity
   • Explain chemical/optical properties
   • Describe identification procedure with example
6. 7 Marks
   bDiscuss in detail about element of crystals and crystal systems.
   How to answer

   • Define crystal and elements - faces, edges, solid angles, axes
   • Explain symmetry elements
   • List seven crystal systems with axial relations
   • Give examples
7. 7 Marks
   aWhat are igneous rocks? List the characteristics of Igneous Rocks.
   How to answer

   • Define igneous rocks and mode of formation
   • List characteristics - crystalline, hard, no fossils, jointing
   • Classify intrusive vs extrusive with examples
8. 7 Marks
   bWhat are metamorphic rocks? Explain about the most commonly used metamorphic rocks in civil engineering.
   How to answer

   • Define metamorphic rocks and metamorphism
   • Explain agents - heat, pressure, fluids
   • List commonly used rocks - marble, slate, gneiss, quartzite
   • Mention civil engineering uses
9. 7 Marks
   aWhat are sedimentary rocks? Explain with a neat sketch the steps involved in the formation of sedimentary rocks.
   How to answer

   • Define sedimentary rocks
   • Explain steps - weathering, erosion, transportation, deposition, lithification
   • Draw neat sketch showing formation cycle
   • Give examples
10. 7 Marks
    bWhat are Folds? Explain any two types of Folds in detail.
    How to answer

    • Define folds and folding mechanism
    • Explain any two types e.g., anticline, syncline
    • Describe geometry with diagrams
    • Engineering significance
11. 7 Marks
    aDefine Joints. Explain any two types of Joints with neat sketch.
    How to answer

    • Define joints in rocks
    • Explain origin and classification
    • Describe any two types with neat sketches
    • Engineering importance
12. 7 Marks
    bExplain the following:

    1. i)Outcrop
    2. ii)Strike
    3. iii)Dip
    How to answer

    • Define outcrop, strike and dip
    • Explain measurement and representation
    • Mention significance in field geology
13. 7 Marks
    aDiscuss in detail about what are the factors to be considered for site selection of tunnel?
    How to answer

    • List geological, topographic, hydrological factors
    • Discuss rock type, structures, groundwater, overburden
    • Explain alignment, grade, construction aspects
    • Conclude suitable site criteria
14. 7 Marks
    bWrite the application of GIS in the field of engineering geology.
    How to answer

    • Define GIS
    • List applications - mapping, site selection, hazard zonation
    • Explain use in groundwater, landslide, alignment studies
    • Give engineering geology examples
15. 14 Marks
    Write a short note on (any two):

    1. a)Volcanoes
    2. b)Sea and oceans
    3. c)Visual interpretation technique in remote sensing
    4. d)Engineering properties of rocks
    How to answer

    • Select any two topics from list
    • Give definition/classification and key features
    • Mention engineering/geological significance
    • Add neat sketch/flow where relevant