Figure 15-1 The following information relates to Lancashire Manufacturing:
To produce a unit of product:
There is a wait time of 8 minutes before the mixing department begins a batch, 5 minutes between the mixing and molding departments, a move and pre-wait between molding and casting of 10 minutes, and a move and pre-wait between the casting and finishing departments of 12 minutes.
Refer to Figure 15-1. How long would it take to process the first unit of a 20-unit batch under a cellular manufacturing setup?
A) 21 minutes
B) 12 minutes
C) 19 minutes
D) 60 minutes

Question

Figure 15-1 The following information relates to Lancashire Manufacturing:
To produce a unit of product:
 There is a wait time of 8 minutes before the mixing department begins a batch, 5 minutes between the mixing and molding departments, a move and pre-wait between molding and casting of 10 minutes, and a move and pre-wait between the casting and finishing departments of 12 minutes.
Refer to Figure 15-1. How long would it take to process the first unit of a 20-unit batch under a cellular manufacturing setup?
A) 21 minutes 
B) 12 minutes 
C) 19 minutes 
D) 60 minutes

Quizplus · Accepted Answer

The processing time for the first unit of a 20-unit batch under a cellular manufacturing setup can be calculated as follows:
Wait time before mixing department begins a batch = 8 minutes
Processing time in mixing department for 1 unit = 15 minutes (8 minutes wait time + 7 minutes processing time)
Processing time in molding department for 1 unit = 5 minutes
Move and pre-wait time between molding and casting departments for 1 unit = 10 minutes
Processing time in casting department for 1 unit = 10 minutes
Move and pre-wait time between casting and finishing departments for 1 unit = 12 minutes
Processing time in finishing department for 1 unit = 2 minutes
Total processing time for 1 unit = 8 + 15 + 5 + 10 + 10 + 12 + 2 = 62 minutes
Therefore, the time to process the first unit of a 20-unit batch would be 62 minutes, and the correct answer is option C (19 minutes to process the first unit if viewed as a standalone process, and then an additional 61 minutes to process the remaining 19 units in the batch).

Figure 15-1 the Following Information Relates to Lancashire Manufacturing