In a typical port fuel injection system, which injectors are most subject to becoming restricted?
A) Any of them equally
B) The injectors at the bends in the rail
C) The injectors at the end of the rail on a returnless system
D) Either B or C
D
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A gene for milk production must have a ____________________, which tells the lactation system when to produce milk and when to stop lactating
Fill in the blank(s) with correct word
A steel bar with modulus of elasticity of 200 Gpa and diameter of 10mm is loaded with an axial load of 50kN. If a strain gauge of gauge factor 2.5 and resistance 120 ohms is mounted on the bar in an axial direction, find the change in resistance.
What will be an ideal response?
There are two potential locations to construct an urgent care walk-in clinic to serve rural residents. The DN alternative is an option since the clinic is not a requirement; it would be a convenience for future patients. When incremental B/C analysis was applied at a discount rate of 8% per year, using the estimates summarized below, the results were: Rank by increasing total cost: DN, 1, 2 Location 1 vs. DN: B/C = 1.66 Conclusion: eliminate DN Location 2 vs.1: ?B/C = 0.50 Conclusion: select location 1
 FIGURE 1.png)
Dr. Thompson, the designated lead physician of the clinic, wanted location 2 to be selected. He has now challenged the estimates, especially the initial cost and disbenefits estimated for location 2. Besides, he calculated the B/C ratio for location 2 itself and obtained a value of 1.58, which he contends is very close to B/C = 1.66 reported for location 1, thus making the selection of location 1 a marginal decision. Answer the following questions using a spreadsheet, for the group of people who must decide if and where to construct the clinic:
(a) Are the B/C ratios for the two locations correct as reported?
(b) Can we select location 2 and still be economically justified?
(c) How much less does location 2 have to cost initially to make it the better location?
(d) If the initial cost of location 2 can’t be changed, is it possible to increase the benefits to select location 2?
(e) Is the result the same if the disbenefits are completely neglected?
The president of ChemTech is trying to decide whether to start a new product line or purchase a small company. It is not financially possible to do both. To make the product for a 3-year period will require an initial investment of $250,000. The expected annual cash flows with probabilities in parentheses are $75,000 (0.5), $90,000 (0.4), and $150,000 (0.1). To purchase the small company will cost $450,000 now. Market surveys indicate a 55% chance of increased sales for the company and a 45% chance of severe decreases with an annual cash flow of $25,000. If decreases are experienced in the first year, the company will be sold immediately (during year 1) at a price of $200,000. Increased sales could be $100,000 the first 2 years. If this occurs, a decision to expand after 2 years at an
additional investment of $100,000 will be considered. This expansion could generate cash flows with indicated probabilities as follows: $120,000 (0.3), $140,000 (0.3), and $175,000 (0.4). If expansion is not chosen, the current size will be maintained with anticipated sales to continue. Assume there are no salvage values on any investments. Use the description given and a 15% per year return to do the following: (a) Construct a decision tree including all values and probabilities. (b) Determine the expected PW values at the “expansion/no expansion” decision node after 2 years provided sales are up. (c) Determine what decision should be made now to offer the greatest return possible for ChemTech. (d ) Explain in words what would happen to the expected values at each decision node if the planning horizon were extended beyond 3 years and all cash flow values continued as forecasted in the description.