CE-405 Engineering Geology & Remote Sensing - Jun 2022 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
   aExplain the allied and main branches of geology.
   How to answer

   • Define geology and its scope in civil engineering
   • List main branches - physical, mineralogy, petrology, structural, etc.
   • List allied branches - engineering geology, hydrogeology, geophysics, etc.
   • Brief role of each branch
2. 7 Marks
   bWrite about how rock weathering affects major Civil engineering structures.
   How to answer

   • Define rock weathering and its types
   • Explain physical, chemical and biological weathering processes
   • Effect on strength, durability and stability of structures
   • Examples of distress in dams, buildings, roads, tunnels
3. 7 Marks
   aDescribe the megascopic study of the rocks.

   1. i)granite
   2. ii)basalt
   3. iii)limestone
   4. iv)sandstone
   5. v)gneiss
   6. vi)slate
   How to answer

   • Define megascopic study - naked eye / hand lens observation
   • Criteria: colour, texture, structure, mineralogy, hardness
   • Describe each rock: granite, basalt, limestone, sandstone, gneiss, slate
   • Engineering significance
4. 7 Marks
   bExplain briefly about

   1. i)outcrop
   2. ii)strike
   3. iii)dip
   How to answer

   • Define outcrop with diagram
   • Define strike - direction of horizontal line on bedding plane
   • Define dip - amount and direction of maximum inclination
   • Relation between strike and dip
5. 14 Marks
   Define fault and write in detail the classification of faults with neat sketch
   How to answer

   • Define fault - fracture with displacement
   • Explain fault elements: hanging wall, footwall, throw, heave
   • Classification by geometry and movement - normal, reverse, strike-slip etc.
   • Neat sketches of each type
6. 7 Marks
   aDefine joints and its important types with case studies.
   How to answer

   • Define joints - fractures without displacement
   • Important types: columnar, sheet, mural, strike, dip joints
   • Engineering significance and case studies of failures
   • Control measures
7. 7 Marks
   bDefine unconformity and explain different types of unconformities.
   How to answer

   • Define unconformity - buried erosional surface
   • Types: angular, disconformity, nonconformity, paraconformity
   • Criteria for recognition in field
   • Engineering significance
8. 7 Marks
   aExplain about any two dam failures of the past in detail.
   How to answer

   • Select any two historic dam failures - causes and sequence
   • Geological / structural / hydrological reasons for failure
   • Losses and lessons learnt
   • Preventive measures
9. 7 Marks
   bDescribe various geological consideration for construction of dam site.
   How to answer

   • List geological factors: lithology, structures, permeability
   • Role of faults, joints, groundwater, seismicity
   • Site investigation methods
   • Remedial measures for dam site
10. 14 Marks
    Define mineral and Rock. Explain the different physical properties of the minerals.
    How to answer

    • Define mineral and rock with examples
    • List physical properties: colour, streak, hardness, cleavage etc.
    • Explain each property with test method
    • Engineering importance
11. 7 Marks
    aExplain different types of steps required for the selection of canal.
    How to answer

    • Steps: reconnaissance, geological and hydrological survey
    • Alignment, soil and foundation investigation
    • Command area and water availability
    • Final selection criteria
12. 7 Marks
    bBriefly explain about the different uses of remote sensing techniques.
    How to answer

    • Define remote sensing techniques
    • Uses in geology, land use, water resources, disaster management
    • Uses in civil engineering planning
    • Examples
13. 7 Marks
    aWrite the different types of components and elements of remote sensing?
    How to answer

    • Define remote sensing and its principle
    • Components: energy source, sensor, platform, data
    • Elements: EMR, interaction, interpretation
    • Flow diagram of system
14. 7 Marks
    bGive the different applications of GIS in civil engineering and resource mapping in Site selection.
    How to answer

    • Define GIS and its components
    • Applications in site selection, alignment, resource mapping
    • Applications in water, transport, urban planning
    • Examples in civil engineering