[試題] 102上 胡明哲 工程經濟 期中考
課程名稱︰工程經濟
課程性質︰生工系選修
課程教師︰胡明哲
開課學院：生農學院
開課系所︰生工系
考試日期（年月日）︰2013/11/6
考試時限（分鐘）：3小時
是否需發放獎勵金：是
（如未明確表示，則不予發放）
試題 :
1.(25points)
The summary of project costs and revenues is present in the table .
(a) Draw cash flow diagram.
(b) Derive Geometric Sequence of Cash Flow formula.
P = A1*(1+i)^(-1)*(1-x^n)/(1-x) if f =/= i
P = A1*N*(1+i)^-1 if f = i
Where A1 is initial cash flow , i is interest rate,N is number of years
for Geometric sequence of cash flow , f is changing rate,and x is (1+f)/(1+i)
(c) Determine the ERR if investment interest rate (ε% or i%) is 12%.
Is this investment acceptable ? (Compare with MARR = 15%).
End of year (EOY) Net cash flow
0 -10000
1 0
2 0
3 8000
4 8000*1.1
5 8000*1.1^2
6 8000*1.1^3
7 8000*1.1^4
8 8000*1.1^5
2.(25 points)
Three mutually exclusive investment alternatives are being considered.
The firm's MARR is 20% per year.Perform the incremental analysis and
conventionl B-C is ratio analysis (Hint: perform B-C ratio test for A, then
delta B-A and then next delta ) to make a recommendation for selecting one
alternative Show every step of your work
Alternative A Alternative B Alternative C
Capital investment 3000 4000 5000
Annual revenues 2000 2500 3000
Market value at end 1000 1400 1500
of useful life
Useful life 10 10 10
3.(25points)
The investment cost of new product is $1000000 in year 0 The annual revenue of
new product is $2000000/year for 6 years with probability of 0.6 or
$280000/year for 6 years with probability of 0.4 .Use old product has
investment cost of $ 0/year. Interest rate(MARR) is 8%.
(a)plot a decision tree
(b)What is your decision based on decision tree analysis?
(c)Calculate the Expected value of perfect information(EVPI).
4.(25points)
Given the matrix of outcomes in the table for car alternative and attributes
show your conclusion based on the following methods:
(a) Dominance
(b) Nondimensional scaling
(c) additive weighting
Job alternative
attribute 1 2 3 ideal Minimum acceptable Relative rank
Price 7000000 1200000 800000 700000 1200000 1
performance 8 10 6 10 6 2
Mill per 20 10 15 20 10 3
gallon
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※ 編輯: ray0215 來自: 140.112.244.142 (11/07 00:22)