A product has a fixed demand of 3000 units per year, and its production requires
ID: 332369 • Letter: A
Question
A product has a fixed demand of 3000 units per year, and its production requires 3 processes with the following cycle times: A =20min/ unit ; B= 30min/ units ; C= 15min/unit. Assuming that this production line operates 250 days/ year, what is its recommended Takt time?
Lead time for cakes is 2 days with daily demand of 20 cakes and a safety stock of ½ a day. Each container (kanban) holds 2 cake. What is the correct number of kanbans?
Which of the following is not a characteristic of preventive maintenance in Jit systems?
A) Maintaining equipment in good operating operation
B) Replacing parts when they are worn but before they fail
C) Workers maintaining their own equipment
D) Eliminating supplies of spare parts to reduce capital investments
E) Perceiving breakdowns as an opportunity for improvement
Which of the following is a barrier to integration of separate organizations in the supply chain?
(I) Conflicting objectives of the companies in the chain
(II) Different level of capacity of the companies in the chain
(III) Reluctance of the organizations in the chain to allow other organizations access to their data
A) I only
B) I and II
C) II and III
D) I and III
E) I, II and III
Explanation / Answer
Answering the first question as per Chegg policy
Annual demand = 3000 units
Annual working days = 250 days
Process A time = 20 min
Process B time = 30 min
Process C time = 15 min
Since the time of process B is 30 minutes and maximum, it is the bottleneck operation. The system production time is dependent on process B.
Process B and hence the system produces 2 units per hour (30 min per unit)
Hence, it will produce 24 x 2 = 48 units in a day.
48 units are produced in a day, hence to produce 3000 units, it will take 3000/48 days = 62.5 days
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