Calculating Trench Volume Quiz
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Questions and Answers

What is the formula for calculating the cross-sectional area of a trench?

  • Width / Depth
  • 2 x (Width + Depth)
  • Width + Depth
  • Width x Depth (correct)
  • Which type of excavator is defined as a power-driven digging machine?

  • Dozer
  • Dragline
  • Hydraulic Excavator (correct)
  • Loader
  • In the context of excavation, what does BCM stand for?

  • Bank Cubic Meter (correct)
  • Bucket Capacity Measurement
  • Basic Construction Material
  • Bulldozer Construction Method
  • What is the volume of excavation required for a trench 0.92 m wide, 1.83 m deep, and 152 m long?

    <p>255 BCM</p> Signup and view all the answers

    Which factor is used to estimate the actual bucket load for a loader bucket?

    <p>Bucket fill factor</p> Signup and view all the answers

    In the formula for estimating production, what does 'C' represent?

    <p>Number of cycles per hour</p> Signup and view all the answers

    What is the bucket fill factor for the hydraulic shovel mentioned in the text?

    <p>1.0</p> Signup and view all the answers

    What is the expected production in loose cubic meters per hour for the hydraulic shovel in the example provided?

    <p>290 LCM/h</p> Signup and view all the answers

    What is one method mentioned in the text for installing utility systems below the ground with minimal open excavation?

    <p>Specialized trenching machines</p> Signup and view all the answers

    When calculating the time required for a haul unit to make one complete cycle, it is customary to break the cycle down into which components?

    <p>Fixed and variable components</p> Signup and view all the answers

    What does 'S' represent in the formula LCM/h = C x S x V x B x E?

    <p>Swing factor</p> Signup and view all the answers

    What is the key factor influencing the efficiency and profitability of an earthmoving operation?

    <p>Type of soil</p> Signup and view all the answers

    Which factor affects the ability of soil to support the weight of vehicles under repeated traffic?

    <p>Soil type and moisture content</p> Signup and view all the answers

    In the context of earthmoving equipment production, what is the formula for cost per unit?

    <p>Equipment production per hour / Equipment cost per hour</p> Signup and view all the answers

    Which factor influences the cycle time of earthmoving equipment?

    <p>Type of soil and loading time</p> Signup and view all the answers

    What is the remedy for improving the trafficability of soil?

    <p>$Drainage; stabilization of haul routes, low-ground-pressure equipment$</p> Signup and view all the answers

    Which element has a significant impact on the load ability of a soil?

    <p>$Soil type and difficulty in excavation$</p> Signup and view all the answers

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