Irgasheva nasiba dadajanovna mechanical english

3.Listen to a conversation between two students. Choose the correct answers.
1.What is the conversation mostly about?
A. the results of a quiz on fluid motion
B. a comparison of two types of fluid motion
C. real-world applications of fluid motion
D. ideas for a final project on fluid motion
2. What will the speakers probably do next?
A. review a concept.
B. retake a quiz
C. work on a project
D .seek help from the instructor

4.Listen again and complete the conversation.

Student1: Hey, Rachel. Can 1 ___________some points from the lecture?

Student2:Sure Brad. What did you want 2________________________?
Student1:That part about 3____________and turbulent flow confused me.
Student2:Me too. I'm not quite sure what 4_________________ is.
Student1: Well, "turbulent" means that it's moving 5___________________.
Student2: That's right. And laminar flow is 6_________________________.

5.Use the report and the conversation from Task8 to fill out e-mail.
ENGINEERING 302
Assignment #4
Briefly describe the differences between
___________________________and__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Unit 14
Tension and compression

Materials Recommendation

Project: #44D-2 Assembly Line Components
The lab tested several materials for the new assembly line components. These components will need to carry substantial loads at varying temperatures. We applied the appropriate amount of stress to each material. We then observed how each material behaved.
We were interested in several internal forces generated by stress. For this application, some machine components will be pulled in opposite directions. Others will be pressed together. Therefore, we paid special attention to the effects of tension and compression on the materials. On the other hand, we don't expect shear to cause significant strain in this design.
The elastic behavior was important to us as well. The manufacturing process will stretch the material, so we also examined elongation. A number of our test materials failed after moderate stretching.
Based on the tests, we recommend steel sample #21. It shows some plastic behavior. That makes it sufficiently malleable for this design. Furthermore, it can support a lot of tension.