Construction Materials, Methods and Techniques (MindTap Course List)
4th Edition
ISBN: 9781305086272
Author: William P. Spence, Eva Kultermann
Publisher: Cengage Learning
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Textbook Question
Chapter 15, Problem 6RQ
What are the main properties of white cast iron?
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The Jeffersonville Transportation Study area has been divided into four traffic zones. The following data have been compiled.
Travel Time (min)
District
Productions
Attractions
1
2 3 4
1
3,000
3,000
5
8
12
15
2
1,000
400
8
5
10
8
3
2,000
4,500
12
10
5
7
4
2,500
600
15
8
7
5
Travel Time
1
5
6
7
8
10
12
15
Fij
2.00 1.30
1.10
1.00
0.95
0.85
0.80
0.65
After the first iteration, the trip table was as follows.
District
1
2
3
4
Ps
1
1,415
138
2
367
67
1,306 141
493
73
3
522
4
641
74
125
As
2,945 404
1,478 256
4,550 601
3,000
1,000
1,273 131 2,000
2,500
Complete the second iteration.
District
1
2
3
4
Computed A
1
2
3
4
Computed P
3. The 200-kg, 5 m-wide rectangular gate shown in Fig. I is hinged at B and leans against
the floor at A making an angle of 45° with the horizontal. The gate is to be opened from
its lower edge by applying a normal force at its center. Determine the minimum force R
required to open the water gate.
2
Water
Fig. 1 1450
3.5mm
R
4. Calculate the magnitude and direction of the resultant pressure-force on the gate as
shown in Fig. 2.
Assume the width of the gate is 1 ft.
12 ft
r=10 ft
8 ft
Fig. 2
Chapter 15 Solutions
Construction Materials, Methods and Techniques (MindTap Course List)
Ch. 15 - What is the key element that influences the...Ch. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - What are the commonly produced cast irons?Ch. 15 - What are the main properties of white cast iron?Ch. 15 - Why is malleable cast iron less brittle than white...Ch. 15 - How does the alloying element nickel affect the...Ch. 15 - If steel has a carbon content less than 0.90...Ch. 15 - Prob. 14RQ
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- 6. Figure 4 shows a segment gate of semicircular cross section which is 10 ft long and 8 ft in diameter. Water stands at a depth of 8 ft on the left-hand side and 4 ft on the right-hand side. Determine both the magnitude and the direction of the total (net) hydrostatic force on the gate. 8.00 t 4.00arrow_forwardThe amount of lumber produced and consumed by three states is shown in the following table. Tons of Lumber Produced and Consumed Per Year (Tons) State Lumber Produced 1 2 3 5,880 3,300 9,800 Lumber Consumed 980 10,000 8,000 Intrastate shipment distances are 300 miles and interstate distances are 500 miles (between States 1 and 2), 1,000 miles (between States 1 and 3), and 400 miles (between States 2 and 3). Assuming an impedance function of the form 1/d, estimate the tonnage of lumber that will travel between the three states. (Compute enough iterations that the total computed consumption for each state, rounded to the nearest integer, matches the given consumption.) To State 1 2 3 Total 1 2 From 3 Total Need Help? Read It Watch Itarrow_forwardBy using the yield line theory, determine the moment (m) for an isotropic reinforced concrete two-way slab (supports on two S.S sides shown in figure under the load (P) (all dimensions are in mm). Solve by equilibrium method m m 2000 2000 3000arrow_forward
- The bracket BCD is hinged at C and attached to a control cable at B. Let F₁ = 275 N and F2 = 275 N. F₁ B a=0.18 m C A 0.4 m- 0.4 m- 0.24 m Determine the tension in cable AB. The tension in the cable (T) = N F2arrow_forwardGiven cross-classification data for the Jeffersonville Transportation Study Area in this table, develop the family of cross-classification curves. (Use high = $55,000; medium low = $15,000. Submit a file with a maximum size of 1 MB.) Choose File No file chosen This answer has not been graded yet. Determine the number of trips produced (by purpose) for a traffic zone containing 400 houses with an average household income of $35,000. 1700 HBW HBO NHB × Your response differs from the correct answer by more than 10%. Double check your calculations. trips 1839 x Your response differs from the correct answer by more than 10%. Double check your calculations. trips 1716 x Your response differs from the correct answer by more than 10%. Double check your calculations. trips = $25,000;arrow_forwardYou are given the socioeconomic data for the Jeffersonville Transportation Study Area, as follows. Population = 72,173 Area = 70 sq mi Registered vehicles = 26,685 Single-family housing units = 15,675 Apartment units = 7,567 Retail employment = 5,502 Nonretail employment = 27,324 Student attendance = 28,551 Average household income = $17,500 Transportation analysis zones = 129 The results of the cross-classification analysis are as follows. Total trips produced for study area = 322,150 per day Home-to-work trips: Home-to-nonwork trips: Nonhome-based trips: 13% (41,880) 62% (199,733) 25% (80,537) The attraction rates for the area have been developed using the following assumptions. 100 percent of home-to-work trips go to employment locations. Home-to-nonwork trips are divided into the following types. Visit friends: Shopping: School: Nonretail employment: 10% 60% 10% 20% Nonhome-based trips are divided into the following types. Other employment area (nonretail): Shopping: 60% 40%…arrow_forward
- The figure shows the section of a gravity dam (non-overflow portion) built of concrete. Calculate (neglecting earthquake effects) the maximum vertical stresses at the heel and toe of the dam. Assume weight of concrete = 23.5 kN/m, and unit length of dam. Allowable stress in concrete may be taken 2500 kN/m and assuming yw = 9.81 kN/m. Max. W.L.. =285-0 6m =289-0 280-0 3 of drainage gallery Tail water 01 =211-0 205-0 56marrow_forwardThe cantilever truss is part of vertical support system subjected to dead loads (D) and snow loads (S). The dead load is 70 psf (pound per square foot) and the snow load is 40 psf. The trusses are spaced at 20 ft apart. a) Determine the joint vertical loads PD and PS acting on joints C, D, E, F, and G. b) Determine the axial force in column JL due to dead load and due to snow load. c) Determine the force in truss member JF due to dead load and due to snow load using the method of sections. d) Using the LRFD load combinations, what it the maximum load Pu in column JL? e) Using the LRFD load combinations, what it the maximum load Pu in truss member JF?arrow_forwardneed helparrow_forward
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How Cast Iron Pans Are Made — How to Make It; Author: Eater;https://www.youtube.com/watch?v=aIBt0uFwjY8;License: Standard Youtube License