Answer the following statements true (T) or false (F)

1. In a typical stress-strain diagram of a material, the stress is generally plotted along the vertical
axis.
2. The stress-strain diagram of mild steel is nearly a straight line up to the yield point.
3. The primary purpose of longitudinal steel bars in a reinforced concrete beam is to overcome the weakness of concrete in tension.
4. Air is a good thermal insulator, provided that it exists in large volumes.
5. A wet or moist material provides a higher R-value than if the same material is dry.


1. True
2. True
3. True
4. False
5. False

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Assuming that a worker is qualified to do a job and is otherwise an effective craft professional, which of the following could be a reason for turnover for such a worker?

a. Not receiving an annual bonus b. Not being selected for Employee of the Month c. Not being granted a compensatory day off d. Not being given any opportunity for advancement

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Describe in detail some of the tensions that exist between safety and economics in virtually any aviation organization.

What will be an ideal response?

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The prefix hecto means one thousand (1,000).

Answer the following statement true (T) or false (F)

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Which description best describes heat transfer by radiation?

A. Water heated in a pot on an electric stove element. B. Heat rising of a baseboard heater. C. Heat from the sun. D. All of the above.

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