Formulas

Question 1

ETC = EAC-AC

Answer 1

Estimate to Complete= Estimate at Completion - Actual cost

Question 2

n(n-1)/2

Answer 2

Number of Communication Channels

Question 3

CPI = EV/AC

Answer 3

Cost Performance Index= Earned Value/ Actual Cost

Question 4

CV = EV-AC

Answer 4

Cost Variance = Earned Value - Actual Cost

Question 5

Definitive Range

Answer 5

Rom Range (-25% to + 75%)

Question 6

EAC = AC+(BAC-EV)/(CPI*SPI)

Answer 6

Estimate at Completion = Actual Cost + (Budget at Completion- Earned Value) / (Cost performance index* Schedule Performance Index)

Question 7

EAC = AC+BAC-EV

Answer 7

Estimate at Completion= Actual Cost + Budget at Completion - Earned value

Question 8

EAC = AC+ETC

Answer 8

Estimate at Completion = Actual Cost + Estimate to Complete

Question 9

EAC = BAC/CPI

Answer 9

Estimate at Completion= Budget at Completion / Cost Performance Index

Question 10

Float LF-EF

Answer 10

LF-EF- Late Finish - Early Finish

Question 11

Float LS-ES

Answer 11

LS-ES Late Start - Early Start

Question 12

FLOAT SLACK

Answer 12

To calculate float, we always start late LS-ES or LF-EF

Question 13

PERT Estimation = (O + 4M + P)/6

Answer 13

most likely, Pessimistic, Optimistic

Question 14

ROM Rough Order of Magnitude

Answer 14

Rom Range (-25% to + 75%)

Question 15

SPI = EV/PV

Answer 15

Schedule Performance Index= Earned Value/ Planned Value or present Value

Question 16

STD DEVIATION = (P-O)/6

Answer 16

most likely, Pessimistic, Optimistic

Question 17

SV = EV-PV

Answer 17

Schedule Variance = Earned Value - Planned Value or present Value

Question 18

TCPI = (BAC-EV)/ (BAC-AC)

Answer 18

To-Complete Performance Index = (Budget at Completion- Earned Value) /(Budget at Completion- Actual Cost)

Question 19

Three Point Estimating

Answer 19

Triangular Distribution = ML + P + O / 3 (Most Likely + Pessimistic + Optimistic) / 3

Question 20

VAC = BAC-EAC

Answer 20

Variance at Completion=Budget at Completion -Estimate at Completion