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lisabon 2012 [21]
3 years ago
13

A contractor needs to excavate 50,000 yd3 of silty clay and haul it with Caterpillar 69C dump trucks. Each truck can carry 30.9

yd3 of soil per load, and operates on a 15-minute cycle. The job must be completed in five working days with the trucks working two 8-hour shifts per day. Using a bulking factor of 30%, how many trucks will be required
Engineering
1 answer:
zalisa [80]3 years ago
5 0

Answer:

Number of trucks required = 203

Explanation:

Calculate the amount of soil need to be excavated from the borrow site by using the following equation:

VF = Vf + (◇V/◇Vf) × Vf

Here,  ◇V is change in volume during grading, Vf  is the Volume of fill, and ◇V/◇Vf  is the bulkage factor

Substitute in the equation.

VF = 50000 + (30/100) 50000

VF = 50000 + 15000

VF = 65000yd^3

Number of trucks needed = (Truck cycle time / Excavator time ) × VF

Number of truck heeded= (15 / (16× 5 ×60) × 65000

Number of trucks = 975000/ 4800

Number of trucks = 203

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import javax.swing.*;

import java.awt.*;

import java.util.Random;

import java.awt.event.*;

public class Guess extends JFrame

{

   private static final long serialVersionUID = 1L;

   private JButton newGame;

   private JButton enter;

   private JButton exit;

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   private JLabel initialTextLabel;

   private JLabel enterLabel;

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   private int userInput;

   private int maxtries = 0;

   public Guess()

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       super("Guessing Game");

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       exit = new JButton("Exit Game");

       enter = new JButton("Enter");

       guess = new JTextField(4);

       initialTextLabel = new JLabel("I'm thinking of a number between 1 and 100. Guess it!");

       enterLabel = new JLabel("Enter your guess.");

       userMessageLabel = new JLabel("");

       randNum = new Random().nextInt(100) + 1;

       setLayout(new FlowLayout());

       add(initialTextLabel);

       add(enterLabel);

       add(guess);

       add(newGame);

       add(enter);

       add(exit);

       add(userMessageLabel);

   

       setSize(500, 300);

       addWindowListener(new WindowAdapter()

       {

           public void windowClosing(WindowEvent e)

           {

               System.exit(0);

           }

       });

       newGameButtonHandler nghandler = new newGameButtonHandler();

       newGame.addActionListener(nghandler);

       ExitButtonHandler exithandler = new ExitButtonHandler();

       exit.addActionListener(exithandler);

       enterButtonHandler enterhandler = new enterButtonHandler();

       enter.addActionListener(enterhandler);

   }

   class newGameButtonHandler implements ActionListener

   {

       public void actionPerformed(ActionEvent e)

       {

           setBackground(Color.ORANGE);

           guess.setEnabled(true);

           guess.setText("");

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           maxtries = 0;

           userMessageLabel.setText("");

           randNum = new Random().nextInt(100) + 1;

       }

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   {

       public void actionPerformed(ActionEvent e)

       {

           System.exit(0);

       }

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   {

       public void actionPerformed(ActionEvent e)

       {

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          }

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   }

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   {

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               userMessageLabel.setText("Too Low");

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   {

       Guess game = new Guess();

       game.setVisible(true);

   }

}

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