A company sells 14000 units of its products it had varible cost 15
Answers
Answer:
S K Mondal Chapter 3
J G 10
K I 7
L J, H 10
M K 6
N L, M 9 [10-Marks]
Solution:
Precedence diagram
The table below shows some possibilities of grouping the tasks in to work stations.
Balancing the work station has been shown in the below table.
The optimum number of work station is 6.
Also the idle time has been shown in the below the table against grouping no 3.
Also the balance delay
=
Where, n = total number of work stations
C = cycle time
= time for the elemental task
= 19.2%
6
8 7 10
10 9
7
6
4 10
5
4
5 6
A DG J
B E H L
C F I KM
N
Total idle time for the
assembly line
Total time taken by a product
from the first work station to
the last work station
100 nC t ( ) i = nC
− ∑
i t th i
100 6 20 97 ( )
6 20
× − = ×
Work
station
number
Grouping
(First)
Work
station
time in
minutes
Grouping
(Second)
Work
station
time in
minutes
Grouping
(Third)
Work
station
time in
minutes
Idle
time in
minutes
1
2
3
4
5
6
A, B, C
D, E, F
G, J
H, L
I, K
M, N
15
17
17
16
17
15
A, D, B
C, F, I
G, H, E
J, L
K, M
N
19
18
18
20
13
9
A, B, D
C, E, F
G, K
H, L
I, K
M, N
19
13
17
16
17
15
1
7
3
4
3
5
97 97 97