Operations Management Worksheet (Transcribed)

A small metal fabrication shop produces 240 machine parts per week. Weekly costs are: Direct labor = P36,000, Raw materials = P48,000, Overhead = P24,000. What is the multi-factor productivity?

• 0.0020 parts/P

• 0.0024 parts/P

• 0.0030 parts/P

• 0.0036 parts/P

A beverage distributor recorded the following monthly sales (in cases): Feb = 1,240; Mar = 1,380; Apr = 1,410; May = 1,570. Using a 4-month moving average, what should be the forecast for June?

• 1,375

• 1,390

• 1,400

• 1,415

Using the same data, the distributor wants to give more importance to recent months with weights 0.4, 0.3, 0.2, 0.1 (most recent to oldest). What is the weighted forecast for June?

• 1,420

• 1,438

• 1,455

• 1,470

If the actual June demand turns out to be 1,500 cases, which forecast is more accurate based on absolute error?

• Moving average (error = 100)

• Weighted moving average (error = 45)

• Moving average (error = 45)

• Weighted moving average (error = 100)

A small electronics store has an annual demand of 2,400 units for a popular gadget. The ordering cost per order is P900, and holding cost per unit per year is P150. What is the Economic Order Quantity (EOQ) the store should follow?

• 160 units

• 170 units

• 180 units

• 200 units

A factory produces 100 units per day while daily demand is 40 units. Annual demand is 10,000 units, setup cost per run is P1,200, and holding cost is P4 per unit. What is the optimal production quantity (EPQ)?

• 1,967

• 2,123

• 2,526

• 3,162

A warehouse receives 120 units daily and lead time for replenishment is 6 days. They maintain a safety stock of 150 units. What is the reorder point?

• 720

• 780

• 840

• 870

A production line has a design capacity of 1,600 units/day, but the actual output is only 1,260 units/day. Calculate the utilization percentage.

• 78.75%

• 80.00%

• 90.00%

• 93.75%

A factory has 480 minutes available per day, and the production target is 60 units/day. Total task time is 38 minutes. What is the minimum number of workstations required?

• 4

• 5

• 6

• 7

If the factory in the previous question decides to use 6 workstations instead of the minimum, what is the line efficiency?

• 79.2%

• 82.5%

• 87.5%

• 90.0%