Earthmoving Operations Quiz
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Questions and Answers

What is the main objective of the earthmoving process?

  • To decrease soil density
  • To increase soil moisture content
  • To reduce the elevation of the construction site
  • To move soil or rock to meet construction requirements (correct)
  • Which of the following is NOT an activity involved in the earthmoving process?

  • Placing
  • Compacting
  • Blasting (correct)
  • Grading
  • What factor has a major influence on the efficiency and profitability of a construction operation?

  • Construction site location
  • Weather conditions
  • Availability of labor
  • Choice of earthmoving equipment (correct)
  • What formula is used to estimate the production of all earthmoving equipment?

    <p>[60 (min/hr) / Cycle time (min)] x Efficiency factor</p> Signup and view all the answers

    What does 'trafficability' refer to in the context of earthmoving materials?

    <p>The ability of soil to support vehicle weight under repeated traffic</p> Signup and view all the answers

    What are the five fundamental material types that soil is considered to consist of?

    <p>Gravel, sand, silt, clay, organic material</p> Signup and view all the answers

    What is the phenomenon called when a soil increases in volume after excavation?

    <p>Swell</p> Signup and view all the answers

    What is the volume unit specified as the basis for payment in an earthmoving contract?

    <p>Pay meter</p> Signup and view all the answers

    What is the calculation to determine shrinkage percentage of soil?

    <p>[1 - (weight after compaction / natural weight)] x 100</p> Signup and view all the answers

    What does the term 'swell' refer to in soil mechanics?

    <p>The increase in volume of soil upon excavation</p> Signup and view all the answers

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