Flow Line Systems Flashcards
1
Q
Precedence Diagram notation
A
Top - Letter
Bottom Left - number of dependent activities
Bottom Right - Time required
2
Q
How do you know how to order a Precedence Diagram
A
Heuristic rules:
order by (if the same, move down to next importance)
- order of greatest dependence
- most time required
- greatest positional weight (most successors)
3
Q
Balance Delay
A
= 100 − Assembly Line Efficiency
4
Q
Assembly Line Efficiency
A
= Σt/(N x CT) X100
Cycle Time (CT)
Number of workstations (N)
Sum of task times (Σt)
5
Q
Total Idle Time
A
= (N x CT) − Σt
Cycle Time (CT)
Number of workstations (N)
Sum of task times (Σt)
6
Q
Total Time Available
A
= (N x CT)
Cycle Time (CT)
Number of workstations (N)
7
Q
Minimum number of workstations required
A
Σt/CT
Cycle Time (CT)
Sum of task times (Σt)
