Question

The table gives details of an assembly line.

Work station	I	II	III	IV	V	VI
Total task time at the workstation (in minutes)	7	9	7	10	9	6

What is the line efficiency of the assembly line?

• A. 85%
• B. 80%
• C. 75%
• D. 70%

Answer 1

The correct option is B 80%

$\text{Total time used = TWC}$

$=7+9+7+10+9+6$
$\text{= 48 min}$

$T_c=\text{Cycle time = 10 min}$

$\text{No. of workstation = 6}$

$\text{Line efficiency}=\frac{TWC}{n\times T_c}\times 100$

$=\frac{\text{Total time used}}{\text{No. of workstation}\times \text{cycle time}}\times 100$

$=\frac{48}{6\times 10}\times 100$

$\text{= 80\%}$