IE 383 Final Exam Question and
answers already passed 2025/2026
True or False: Median condition applies to rectilinear distance and minisum problems - correct answer
✔True. When the problem is a rectilinear minisum problem, the median condition applies. When the
problem is a straight line minisum problem, the center of gravity method applies. When the problem is a
minimax and straight line problem, the circle shape graphing method is used. When the problem is a
rectilinear minimax problem, the diamond method can be used.
Products follow a flow from Machine 1 to Machine 2 to Machine 3. They all have the same scrap rate
and the same processing time (10 minutes). Which machine will have the lowest machine utilization -
correct answer ✔Machine 3
What are the three inputs of MRP? - correct answer ✔Elements of MRP Table:
GR - Gross Requirement
SR - Scheduled Receipts
BI - Beginning Inventory
NR - Net Requirements
POR - Planned Order Receipts
Inputs are GR, SR, and BI
What is the formula for Mean Absolute Deviation? (MAD) - correct answer ✔MAD = sum(actual -
predicted) / N
What is the formula for Mean Squared Error? - correct answer ✔MSE = sum[(actual - predicted)^2] / N
, What is the formula for Mean Absolute Percent Error? - correct answer ✔MAP = (100/N)(sum[(actual -
predicted) / actual])
What are the basic layout types? - correct answer ✔Single Machine, Machine Flow Shop, Job Shop,
Group Technology
Be able to look at a group technology matrix (finished) and tell which parts belong to the same family -
correct answer ✔lol theres no answer for this just do it
What are the 4 principles/rights of material handling? - correct answer ✔1) Right material in the 2)
right amount in the 3) right place at the 4) right time
Select all that apply:
a) median condition applies to rectilinear distance and minisum
b) Diamond shape method applies to straight-line distance and minisum problem
c) Circle shape method applies to straight-line distance and minimax problem
d) center of gravity applies to rectilinear distance and minimax problems - correct answer ✔A & C.
Minisum Straight Line: COG
Minisum Rectilinear: Median
Minimax Straight Line: Circle
Minimax Rectilinear: Diamond
In order to use the EOQ Model formula, which of the following assumptions must be made?
a) Demand is known with certainty and is relatively constant over time
b) No shortages are allowed
c) Lead-time for the receipt of orders is constant
answers already passed 2025/2026
True or False: Median condition applies to rectilinear distance and minisum problems - correct answer
✔True. When the problem is a rectilinear minisum problem, the median condition applies. When the
problem is a straight line minisum problem, the center of gravity method applies. When the problem is a
minimax and straight line problem, the circle shape graphing method is used. When the problem is a
rectilinear minimax problem, the diamond method can be used.
Products follow a flow from Machine 1 to Machine 2 to Machine 3. They all have the same scrap rate
and the same processing time (10 minutes). Which machine will have the lowest machine utilization -
correct answer ✔Machine 3
What are the three inputs of MRP? - correct answer ✔Elements of MRP Table:
GR - Gross Requirement
SR - Scheduled Receipts
BI - Beginning Inventory
NR - Net Requirements
POR - Planned Order Receipts
Inputs are GR, SR, and BI
What is the formula for Mean Absolute Deviation? (MAD) - correct answer ✔MAD = sum(actual -
predicted) / N
What is the formula for Mean Squared Error? - correct answer ✔MSE = sum[(actual - predicted)^2] / N
, What is the formula for Mean Absolute Percent Error? - correct answer ✔MAP = (100/N)(sum[(actual -
predicted) / actual])
What are the basic layout types? - correct answer ✔Single Machine, Machine Flow Shop, Job Shop,
Group Technology
Be able to look at a group technology matrix (finished) and tell which parts belong to the same family -
correct answer ✔lol theres no answer for this just do it
What are the 4 principles/rights of material handling? - correct answer ✔1) Right material in the 2)
right amount in the 3) right place at the 4) right time
Select all that apply:
a) median condition applies to rectilinear distance and minisum
b) Diamond shape method applies to straight-line distance and minisum problem
c) Circle shape method applies to straight-line distance and minimax problem
d) center of gravity applies to rectilinear distance and minimax problems - correct answer ✔A & C.
Minisum Straight Line: COG
Minisum Rectilinear: Median
Minimax Straight Line: Circle
Minimax Rectilinear: Diamond
In order to use the EOQ Model formula, which of the following assumptions must be made?
a) Demand is known with certainty and is relatively constant over time
b) No shortages are allowed
c) Lead-time for the receipt of orders is constant
