An assembly line consists of three workstations WS)with each station's activity time as shown.

When fully operational this line could assemble _______ completed items every 60 minutes.
A)20
B)15
C)12

Question

An assembly line consists of three workstations WS)with each station's activity time as shown.

When fully operational this line could assemble _______ completed items every 60 minutes.
A)20 
B)15 
C)12

Quizplus · Accepted Answer

To find out how many items can be assembled in an hour, we need to first find out the cycle time of the assembly line. 
The cycle time is the sum of the activity times at each of the workstations. 
Cycle time = 15 + 20 + 25 = 60 seconds. 
As there are 60 minutes in an hour, there are 60/60 = 1 cycle per hour. 
Therefore, the total items produced in an hour will be 1 cycle/hour x 5 items/cycle = 5 completed items every 60 minutes. 
Hence, the best choice is option C.

An Assembly Line Consists of Three Workstations WS)with Each Station's