Geognostic Survey Methods Quiz
14 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the aim of geognostic surveys?

  • Identifying and characterising the atmosphere
  • Identifying and characterising the flora and fauna
  • Identifying and characterising the water bodies
  • Identifying and characterising the ground (correct)

    • What is the difference between direct and indirect geognostic surveys?

  • Direct surveys are only done on-site, while indirect surveys are done remotely
  • Direct surveys are more accurate than indirect surveys
  • Indirect surveys involve actual inspection of the ground, while direct surveys infer ground parameters for stratigraphy
  • Direct surveys involve actual inspection of the ground, while indirect surveys infer ground parameters for stratigraphy (correct)

    • What determines the number of trenches and drillings in direct onsite surveys?

  • The distance from the survey site to the nearest city
  • The extent of the study area and its geological complexity (correct)
  • The depth of the water bodies in the area
  • The height of the tallest structures in the area

    • What is the purpose of bore-hole tests and sample collection for lab tests?

    <p>Characterizing physical and mechanical properties of geomaterials</p> Signup and view all the answers

    What is the maximum depth for percussion method drilling?

    <p>150m</p> Signup and view all the answers

    What is the main purpose of using a casing in steel or plastic during drilling?

    <p>Prevent the hole from collapsing</p> Signup and view all the answers

    What is the speed range for rotary method drilling?

    <p>10-15 m/h</p> Signup and view all the answers

    When is the percussion method drilling specifically recommended?

    <p>Only for not cohesive soils</p> Signup and view all the answers

    What is the main purpose of using core drilling with core bit?

    <p>Recovery of the whole drilled core</p> Signup and view all the answers

    What is the primary purpose of RQD (Rock Quality Designation) assessment?

    <p>Quantification of the RQD</p> Signup and view all the answers

    What is the ideal sample for characterizing physical and mechanical properties of geomaterials?

    <p>Intact core sample</p> Signup and view all the answers

    What is the purpose of inclinometric probes?

    <p>Landslide monitoring</p> Signup and view all the answers

    What is the primary function of an external tube in sampling tube?

    <p>Limiting cross-contamination</p> Signup and view all the answers

    What is the main purpose of a thin steel tube in sampling tube?

    <p>Limiting cross-contamination</p> Signup and view all the answers

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser