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4.3 Designing for Safety
Pearson Education
www.sciencesource.ca
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1. Whether a failure is a pothole or a bridge collapse, engineers learn from it and improve their designs to ensure _____.
5. Designing for risk requires a thorough _____ of the structure and the forces that may affect it.
6. A _____ is any device that can detect or measure real-world conditions.
7. When some things that could happen to a structure are highly unlikely the risk is _____.
11. If a bridge is designed with no supports in the water, such as the bridge in this background photograph, the risk of a ship collision can be _____.
13. The “_____ _____” of the 12.9 km long Confederation Bridge to Prince Edward Island is 100 years.
14. A _____ in your home monitors (“senses”) the temperature.
Down
2. Structures _____ when forces are too strong for them.
3. No one can design a structure to be 100% failure-_____. The materials it is made from wear down over time.
4. Engineers use the techniques of risk _____ to reduce the risk of failure as much as possible.
8. Something described as _____ operates well without a waste of time, effort or expense.
9. Inspectors examine existing structures for signs of _____. These signs include cracks, warping and rusting or corrosion of metal.
10. Carbon monoxide detectors sound when they detect a buildup of _____ carbon monoxide gas.
12. Doors in many stores open as you walk toward them. These doors have _____ detectors.
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