Question

When a set of jobs must pass through two workstations whose sequence is fixed, ~*~ is the rule most commonly applie

Answer 1

Explanation:

specifies the order in which jobs should be done at each centre

Answer 2

Answer:

When a set of jobs must pass through two workstations whose sequence is fixed, Johnson's rule is most commonly applied

Explanation:

Johnson's rule is a method of sequencing jobs among two work stations. The objective of this sequencing is to find the best sequence to perform the consecutive jobs.

The Objectives of the Johnson's Rule are:

• To minimise the processing time for sequencing of jobs through two work centres.
• To minimise the total idle times on the machines.
• To reduce the flow time from the beginning of the first job until the finish of the last job