1. Define the following terms:
a) Grooving
b) Elastomer
c) Parabola
d) Situation...
Engineering, 16.02.2020 14:46 annafellows
1. Define the following terms:
a) Grooving
b) Elastomer
c) Parabola
d) Situation
2. State two basic types of polymerization
3. One of the two classes of plastics is thermosetting plastics.
a) Explain what is meant by plastic memory.
b) Show graphical representation of thermosetting plastics.
4. As a designer to make a product you need to go through the design process and of the
stages is called the situation.
a) Explain what is the meant by the "design process".
b) State three important things a good situation derived from the theme should have.
5. One example of framing joints is the mortise and tenon joint.
a) What are framing joints?
b) With the aid of the diagram, explain the mortise and tenon joint.
Answers: 2
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If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
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Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
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A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:20
Air is compressed isentropically from an initial state of 300 k and 101 kpa to a final temperature of 1000 k. determine the final pressure using the following approaches: (a) approximate analysis (using properties at the average temperature) (b) exact analysis
Answers: 1
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