Read the text and fill in the gaps with the following words:
| discipline Testing solutions knowledge evaluate find known |
Engineers use their (1) __________ of science, mathematics, and appropriate experience to (2) __________ suitable solutions to a problem. Engineering is considered a branch of applied mathematics and science. Creating an appropriate mathematical model of a problem allows them to analyze it (sometimes definitively), and to test potential (3) __________ .
Usually there may be several reasonable solutions, so engineers must (4) __________ the different design choices on their merits and choose the solution that best meets their requirements.
Engineers typically attempt to predict how well their designs will perform to their specifications prior to full-scale production. They use, among other things: prototypes, scale models, simulations, destructive tests, nondestructive tests, and stress tests. (5) __________ ensures that products will perform as expected.
Engineers as professionals take seriously their responsibility to produce designs that will perform as expected and will not cause unintended harm to the public at large. Engineers typically include a factor of safety in their designs to reduce the risk of unexpected failure. However, the greater the safety factor, the less efficient the design may be.
The study of failed products is (6) __________ as forensic engineering, and can help the product designer in evaluating his or her design in the light of real conditions. This (7) __________ is of greatest value after disasters, such as bridge collapses, when careful analysis is needed to establish the cause or causes of the failure.
Now answer the following questions about the text:
8) What should an engineer do if there are many possible solutions for a problem?
9) How can possible solutions be evaluated?
10) Why is testing so important?
11) Does the high degree of safety always mean the efficiency of the design?
Part III
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