6. Which of the following is not a key design consideration for brake materials:
ID: 2074703 • Letter: 6
Question
6. Which of the following is not a key design consideration for brake materials: a. Cost b. Temperature capacity c. Actuation force capacity d. Velocity 7. The unit polar moment of inertia is helpful in weld design for what reason? a. So that the weld group used in the design can be defined last. b. So that the mechanical load imparted to the structure can be defined last. c. So that the leg size of the weld can be defined last. d. So that the dimension of the structure being welded to a support can be determined last. 8. Spur gears that act as idlers have the following attributes: a. The bending stresses in the teeth are one-way bending in compression b. The bending stresses in the teeth are one-way bending in tensions c. The bending stresses in the teeth are completely-reversed. d. The bending stresses are nominally zero since all of the forces are transmitted from one mating gear to the next. 9. Which of the following is true regarding the stress field in a fillet weld under loading: a. Only axial stresses exist throughout the body. b. Only shear stresses exist throughout the body. c. A mix of axial and shear stresses exist throughout the body. d. A mix of axial and shear stresses exist throughout the body, but for the sake of approximation, only axial stress is considered. 10. Select the best answer regarding a differential band brake a. A the band is generally less narrow than the drum b. The lever arm can be made of a flexible rubber c. The slack side is connected to the pivot. d. None of the above.Explanation / Answer
6-a
As the brake is the most important part as it can lead to accudents due to failure or can save life at a last moment. It is very importabt for a brake material to be the best quality. That's why in general we don't consider cost.
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