Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 4, Problem 4.16PFS
To determine
The selection of the lightest
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Solve for reactions and shear and moment diagram (base the answer on the 2nd figure).
Hand Calculation
2. Note: Assume bottom left support as roller, bottom right support as pinned
4 kN/m
3 kN/m
8m
4m
2m
Your client wants to build a WTP that has a withdraw of 440 MGD. What is the exceedance probability in percentage?
Average Monthly Minimum Flow of Record
Month
(MGD)
Jan-73
322
Feb-73
280
Mar-73
335
Apr-73
374
May-73
440
Mar-74
313
Apr-74
375
May-74
560
Jun-74
380
Jul-74
445
Aug-74
323
Sep-74
411
Oct-74
541
Nov-74
510
Jan-75
261
Feb-75
271
May-75
312
Jun-75
314
351
Jul-75
Aug-75
332
If a second 12.25" pump was added in parallel what would be the NPSHr be while both pumps are running?
HEAD (Feet)
250-
200-
Pump Series: VSX-VSC
10x12x13-1/2A
1780 RPM
13.5"
60%
70% -75%
80%
83%
-85.5%-
150-
12.25"
100-
50
50-
10"
0-
2,000
NPSHr
83%.
80%
300HP-
-75%
250HP
200HP
70%
150HP
125HP
100HP
NPSHr(ft)
0
4,000
6,000
8,000
Capacity (GPM)
80
90
8
Chapter 4 Solutions
Structural Steel Design (6th Edition)
Ch. 4 - Prob. 4.1PFSCh. 4 - Prob. 4.2PFSCh. 4 - Prob. 4.3PFSCh. 4 - Prob. 4.4PFSCh. 4 - Prob. 4.5PFSCh. 4 - Prob. 4.6PFSCh. 4 - Prob. 4.7PFSCh. 4 - Prob. 4.8PFSCh. 4 - Prob. 4.9PFSCh. 4 - Prob. 4.10PFS
Ch. 4 - Prob. 4.11PFSCh. 4 - Prob. 4.12PFSCh. 4 - Prob. 4.13PFSCh. 4 - Prob. 4.14PFSCh. 4 - Prob. 4.15PFSCh. 4 - Prob. 4.16PFSCh. 4 - Prob. 4.17PFSCh. 4 - Prob. 4.18PFSCh. 4 - Prob. 4.19PFSCh. 4 - Prob. 4.20PFSCh. 4 - Prob. 4.21PFSCh. 4 - Prob. 4.22PFSCh. 4 - Prob. 4.23PFSCh. 4 - Prob. 4.24PFSCh. 4 - Prob. 4.25PFSCh. 4 - Prob. 4.26PFS
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- Each gate of the lock is 6 m high and is supported by two hinges placed on the top and bottom of the gate. When the gates are closed, they make an angle of 120º. The weight of the lock is 5 m. If the water levels are 4 m and 2 m upstream and downstream, respectively, determine the magnitude of forces on hinges due to the water pressure.arrow_forwardQuestion 5 A submerged sharp crested weir 0.8 m high stands clear across a channel having vertical sides and a width of 3 m. The depth of water in the channel of approach is 1.25 m and 10 m downstream from the weir, the depth of water is 1 m. Determine the discharge over the weir in liters per second. Take Cd as 0.6arrow_forwardQuestion 4 B A rectangular sharp crested weir is to be constructed in a testing station with a small stream in which the discharge varies from 50 liters/s and 1250 liters/s. Find the suitable length of the weir, if the minimum head to be measured is 50 mm and the maximum head on it does not exceed one-third of its length.arrow_forward
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