
Engineering Your Future: Comprehensive
8th Edition
ISBN: 9780199348015
Author: William C. Oakes, Les L. Leone
Publisher: Oxford University Press
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Chapter 8, Problem 8.1EAA
To determine
Find five examples of how engineers use graphical communication in their professional lives.
Expert Solution & Answer

Explanation of Solution
We will take examples from both practicing engineers and professors. The following are some examples:
- Adhesive application that is the gramage of adhesive spread on a specific area and the bonding strength. In this condition, the gramage deposition say 50,100, and 150 and multiples of 50 can be laid on the x axis and corresponding adhesive strength of the joint plotted on the y-scale. This can be visualized clearly to provide the best deposition.
- The constituents of a material (say steel) can be well illustrated in a Pie chart indicating the percentage of elements.
- In the production of high pressure laminates, the papers are impregnated with phenol and melamine resins. The paper gramage can be 40, 80,120,160 gm/m2 and the impregnation will be twice the basic paper gramage. The Scratch resistance and surface properties can be evaluated and results plotted on the y-axis with the paper gramage along the x-axis. By analysing the graph, we can find the best and optimum conditions for the paper and resin loading.
- A drying process requires heat. The heat (calories) can be supplied from a boiler house and the fuels can be fuel oil, diesel, wood, electricity, and natural gas. The options are given to use any of these fuels and their costs are also made available. The engineer based on the heat requirement in the dryer will figure out the quantity of fuel required and based on the cost of the fuel will arrive at the total sum against each item. This will be done graphically for better appreciation and decide on the fuel for the boiler house.
- The shareholding of a company can be well illustrated in a Pie chart. This can be done by marking the area in the graph based on the percentage holding of each investor in the company.
Conclusion:
The above cited are the five examples of how engineers use graphical communication in their professional lives.
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CORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED.
18: Determine the maximum shear and moment that would be experienced by a 10 m beam if a three-wheelmoving load of 10 kN, 30 kN, and 5 kN respectively will pass it by. The distance between the 1st and 2nd load is 1 m and the distance between the 2nd and 3rd load is 3 m.ANS: Vmax = 40 kN ; Mmax = 100.014 kN-m
CORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED.
5: A 12-m simply supported bridge is constructed with 100-mm concrete slab deck supported by precastconcrete stringers spaced 800 mm on center. Analyze the stringers when subjected to a moving load consisting of 3 evenly spaced axle loads at 3 m and equivalent to 20 kN, 30 kN and 40 kN respectively. The self-weight of the stringers is 8.5 kN/m and the concrete deck has a unit weight of 24 kN/m3 . Neglect all other superimposed loads. Calculate: (a) the maximum shear force in the stringers; (b) the maximum bending moment in the stringers.
Answer: Vmax = 135.020 KN, Mmax = 477.388 KN-M
CORRECT AND DETAILED HANDWRITTEN SOLUTION WITH FBD ONLY. I WILL UPVOTE THANK YOU. CORRECT ANSWER IS ALREADY PROVIDED.
19: A 22-wheeler truck is crossing over 25 m bridge. The dimensions between the axles of the truck are shownin the figure below. Axles 1 to 3 carry a 90 kN load each, axles 4 and 5 carry a 65 kN load each, and the axle directly below the cab of the truck has a load of 100 kN. Determine the maximum shear and moment on the bridge.ANS: Vmax = 374.92 kN ; Mmax = 1,702.229 kN-m
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