Solid Waste Engineering: A Global Perspective, Si Edition
3rd Edition
ISBN: 9781305638600
Author: William A. Worrell, P. Aarne Vesilind, Christian Ludwig
Publisher: Cengage Learning
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Chapter 3, Problem 3.13P
To determine
The best recommendation for the purchase of the collecting vehicle required to collect refuse once a week.
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1. For truss given in a figure below, determine reactions, and forces in all truss members. De-
termine forces using two methods independently: (a) method of joints, and (b) method of
sections. Compare your results and verify that your solutions are accurate. Assume that force
F
=
10kN.
2m 2m
2m
▼F ▼F
4m
▼F
4m
1) Determine if the existing sedimentation basins are sufficient to accommodate the
projected future capacity. If not, design upgrades to the sedimentation basins.
A) Current Capacity: 22.5 MGD
B) Future Capacity: 34.5 MGD for 110,000 residents
C) If not, design upgrades to the sedimentation basins.
2) Specify the design flow rate, the type of basin (circular vs. rectangular)
3) Specify the basin dimensions (length, width, water depth or diameter and water
depth).
4) Specify the dimensions of the launders (if applicable) and the length of the weir.
The capacity of a freeway lane with free-flow speed of 70mph and jam density average vehicle spacing 40ft assuming greenshields’s model applies. Please explain step by step and show formula
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Solid Waste Engineering: A Global Perspective, Si Edition
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- 3. For problems given below, determine all the reaction forces and plot force diagrams for normal forces (N), shear force (T), and moments (M). 150 lb/ft 10 ft C B 2 ft 2 ft -4 ft D 250 lb/ft 50 lb/ft B 150 lb-ft 150 lb-ft -20 ft 10 ft -20 ft 200 lb-ftarrow_forwardPlease explain step by step and show all the formula usedarrow_forwardBy using the yield line theory, determine the moment (m) for an isotropic reinforced concrete two- way slab shown in figure under a uniformly distributed load. Using moment method 5 2 7.0m 1 A I c.g. * B c.g 5 2 B c. g. ㄨˋ A A 2.5 2.0 2.5 5.0marrow_forward
- Bars AD and CE (E=105 GPa, a = 20.9×10-6 °C) support a rigid bar ABC carrying a linearly increasing distributed load as shown. The temperature of Bar CE was then raised by 40°C while the temperature of Bar AD remained unchanged. If Bar AD has a cross-sectional area of 200 mm² while CE has 150 mm², determine the following: the normal force in bar AD, the normal force in bar CE, and the vertical displacement at Point A. D 0.4 m -0.8 m A -0.4 m- B -0.8 m- E 0.8 m C 18 kN/marrow_forwardDraw the updated network. Calculate the new project completion date. Check if there are changes to the completion date and/or to the critical path. Mention the causes for such changes, if any. New network based on the new information received after 15 days (Correct calculations, professionally done). Mention if critical path changes or extended. Write causes for change in critical path or extension in the critical path.arrow_forwardThe single degree of freedom system shown in Figure 3 is at its undeformed position. The SDOF system consists of a rigid beam that is massless. The rigid beam has a pinned (i.e., zero moment) connection to the wall (left end) and it supports a mass m on its right end. The rigid beam is supported by two springs. Both springs have the same stiffness k. The first spring is located at distance L/4 from the left support, where L is the length of the rigid beam. The second spring is located at distance L from the left support.arrow_forward
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