5a) List the Ethical Priorities /Hierarchy that govern explain why this is impor

Question

5a) List the Ethical Priorities /Hierarchy that govern explain why this is important to you personally, as an Engineer? s the decisi on making of the Engineer and 5b) Compute the System Reliability of the product assembly below: 0.850.75 0.75 0.75 0.85 5c) A product is known to experience on the average, three failures per 20,000 hours of operation, i. e. 3/20000 0.000015. Calculate the probability of an item from the batch surviving 50,000 hours of operation, assuming an exponential failure distribution for failure times. R(et 5d) What are the various methods for enhancing the reliability of products. Name at least six.

Explanation / Answer

5a) Here is the list of ethical priorities in decision making for an engineer.

1.Establishing the facts

2. Analyzing the facts

3. Exploring the alternatives.

4. Evaluating the options.

5. Finalizing the options suitable

6. Improving the option chosen by the feedback mechanism.

These are the important steps in decision making in hierarchical order

5b) As there are two parallel processes but with similar reliabilities indexes. so the reliability of the parallel process is 0.75*0.85. And it will then combine with a process of reliability 0.75

Therefore the reliability of the system is 0.75*0.85*0.75 = 0.478125

5c)Given lambda = 0.000015

failure after t hours = R(t) = e^(-lamda*t)

= e^(-0.000015*50000)

= e^(-0.75) = 0.47

The probability that is stays more than 50000 hours is = 1-0.47

=0.53 or 53%

5d) Here is the lift of methods which can help in improving the reliability of the products.

1. Proper material selection for the raw materials used for the products.

2. Proper feedback mechanism to enhance the quality of the products

3. Required technology upgrades, process upgrades

4. Improvements the quality check methods and employee training.

5. Implementation of lean sig sigma at every possible level.

6. Double check mechanism through machine feedback and employee feedback to improve the systems and product reliability.

7. stringent final quality checks so no defective products goes to the end customer

I tried to explain each and every detail in a crisp manner, do let me know if you needed any additional help on the above answered

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