Five Jobs Are Waiting for Processing Through Two Work Centers

question 38

Multiple Choice

Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below. Each job requires work center Sigma before work center Delta. According to Johnson's rule, what sequence of jobs will minimize the completion time for all jobs?

• A) R-S-T-U-V
• B) S-V-T-R-U
• C) S-U-T-V-R
• D) V-R-U-S-T
• E) none of the above

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Definitions:

Uplift

A geological process where Earth's crust is raised or elevated, often as a result of tectonic activity.

Isostasy

The equilibrium state of the Earth’s crust, where the forces pushing a land mass up are balanced by the weight of the mass itself pressing down.

Equanimity

A state of mental or emotional stability, especially in difficult situations.

Superposition

A principle in geology stating that in an undisturbed sequence of rocks, layers are older at the bottom and younger at the top.