Civil Engineering MCQAE Level Civil Engineering
An activity has normal duration 10 days, normal cost Rs.8,000, crash duration 7 days and crash cost Rs.14,000. The cost slope is:
Construction ManagementProject CrashingMEDIUM
Choose the correct answer
A
Rs. 1,000/day
B
Rs. 2,000/day
C
Rs. 4,000/day
D
Rs. 6,000/day
Correct Answer
B. Rs. 2,000/day
Why is this the answer?
Cost slope = (Crash cost − Normal cost)/(Normal duration − Crash duration) = (14,000 − 8,000)/(10 − 7) = 6,000/3 = Rs. 2,000/day. Lower cost slope = cheaper to crash; crash this activity first in network crashing.
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