Distinguish between DCE and DTE as applied in data communication with the aid of a diagram

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September 18, 2017
Explain the application of the CRISP-DM process on your chosen area of interest; describe the types of data, give examples of data mining questions; explain what techniques could be used to address these questions and the expected results from the analysis; explain the evaluation process, explain how these results could be taken into consideration in a decision making context
September 18, 2017
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Distinguish between DCE and DTE as applied in data communication with the aid of a diagram

1) a) State FOUR advantages of worm and worm wheel final drive over crown wheel and pinion type. (4 marks)
b) With the aid of a diagram, explain the operation of a two speed final drive unit used in some vehicles. (16 marks)
2) a) List any FOUR requirements of a brake servo unit fitted in a motor vehicle. (4 marks)
b) With the aid of a diagram, explain the operation of a vacuum brake servo unit. (16 marks)
3) a) With the aid of a graph, explain the effect of using single Hooke’s universal joint to transmit a drive through an angle. Suggest a solution to the problem. (10 marks)
b) Illustrate one type of a constant velocity joint and explain its operation. (10 marks)
4) a) State the meaning of the following as applied to steering:
i. Centre point steering
ii. Positive roll radius
iii. Negative roll radius (6 marks)
b) Illustrate Negative roll radius and explain its effect on stability of a vehicle. (14 marks)

 

 

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