Question 1. A water filtration system in an industrial process was purchased in 2014 for $250,000. It will be replaced at the end of year 2019. What is the estimated cost of the replacement, based on the following equipment cost index?Hint. Use the indexing method.

Year	Index	Year	Index
2014	220	2017	257
2015	238	2018	279
2016	247	2019	298

Question 2. Six years ago, an 80-kW diesel electric set cost $160,000. The cost index for this class of equipment six years ago was 187 and is now 194. The cost-capacity factor is 0.6.a)The plant engineering staff is considering a 120-kW unit of the same general design to power a small isolated plant. Assume we want to add a pre-compressor, which (when isolated and estimated separately) currently cost $18,000. Determine the total cost of the 120-kW unit.b)Estimate the cost of a 40-kW unit of the same general design. Include the cost of the $18,000 pre-compressor.Hint. Both power-sizing and indexing will be used.

Question 3.The structural engineering design section within the engineering department of a regional electrical utility corporation has developed several standard designs for a group of similar transmission line towers. The detailed design for each tower is based on one of the standard designs. A transmission line project involving 50 towers has been approved. The estimated number of engineering hours needed to accomplish the first detailed tower design is 126. Assuming a 95% learning curve,a)What is your estimate of the number of engineering hours needed to design the eighth tower and to design the last tower in the project?b)What is your estimate of the cumulative average hours required for the first five design?Hint. Use the learning curve method.